Symbol Palette in Diagram
17 Jul 202324 minutes to read
The SymbolPalette displays a collection of palettes. The palette shows a set of nodes and connectors. It allows to drag and drop the nodes and connectors into the diagram.
Create symbol palette
The width and height properties of the symbol palette allows to define the size of the symbol palette.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Syncfusion.EJ2.Diagrams;
using System.Drawing;
namespace EJ2MVCSampleBrowser.Controllers.Diagram {
public partial class DiagramController: Controller {
// GET: Nodes
public ActionResult Nodes() {
return View();
}
}
}Add palettes to SymbolPalette
A palette allows to display a group of related symbols and it textually annotates the group with its header. A Palettes can be added as a collection of symbol groups.
The collection of predefined symbols can be added in palettes using the symbols property.
To initialize a palette, define a JSON object with the property ID that is unique ID is set to the palettes.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Syncfusion.EJ2.Diagrams;
using System.Drawing;
namespace EJ2MVCSampleBrowser.Controllers.Diagram {
public partial class DiagramController: Controller {
// GET: Nodes
public ActionResult Nodes() {
List < DiagramNode > SymbolPaletee = new List < DiagramNode > ();
SymbolPaletee.Add(new FlowShapes() {
Id = "Terminator", Shape = new {
type = "Flow", shape = "Terminator"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "Terminator", Shape = new {
type = "Flow", shape = "Terminator"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "Process", Shape = new {
type = "Flow", shape = "Process"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "Decision", Shape = new {
type = "Flow", shape = "Decision"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "Document", Shape = new {
type = "Flow", shape = "Document"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "PreDefinedProcess", Shape = new {
type = "Flow", shape = "PreDefinedProcess"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "PaperTap", Shape = new {
type = "Flow", shape = "PaperTap"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "DirectData", Shape = new {
type = "Flow", shape = "DirectData"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "SequentialData", Shape = new {
type = "Flow", shape = "SequentialData"
}
});
List < DiagramNode > BasicNodes = new List < DiagramNode > ();
BasicNodes.Add(new DiagramNode() {
Id = "Rectangle", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Rectangle
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Ellipse", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Ellipse
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Parallelogram", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Parallelogram
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Triangle", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Triangle
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Hexagon", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Hexagon
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Pentagon", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Pentagon
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Cylinder", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Cylinder
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Star", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Star
}
});
ViewBag.BasicShapes = BasicNodes;
List < DiagramNode > SvgNodes = new List < DiagramNode > ();
SvgNodes.Add(new DiagramNode() {
Id = "Native", Style = new NodeStyleNodes() {
Fill = "None"
}, Shape = new {
type = "Native"
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'<path id="path1" transform="rotate(0,128,128) translate(59.1078108549118,59) scale(4.3125,4.3125) " fill="#FFFFFF" d="M12.12701,24.294998C12.75201,24.294998 13.258998,24.803009 13.258998,25.428009 13.258998,26.056 12.75201,26.563004 12.12701,26.563004 11.499019,26.563004 10.993007,26.056 10.993007,25.428009 10.993007,24.803009 11.499019,24.294998 12.12701,24.294998z M7.9750035,24.294998C8.6010101,24.294998 9.1090057,24.803009 9.1090057,25.428009 9.1090057,26.056 8.6010101,26.563004 7.9750035,26.563004 7.3480199,26.563004 6.8399942,26.056 6.8399942,25.428009 6.8399942,24.803009 7.3480199,24.294998 7.9750035,24.294998z M7.9750035,20.286011C8.6010101,20.286011 9.1090057,20.792999 9.1090057,21.419006 9.1090057,22.044006 8.6010101,22.552002 7.9750035,22.552002 7.3500035,22.552002 6.8420084,22.044006 6.8420084,21.419006 6.8420084,20.792999 7.3500035,20.286011 7.9750035,20.286011z M18.499994,19.317001C18.313013,19.317001,18.156,19.472,18.156,19.656006L18.156,27.01001C18.156,27.195007,18.313013,27.350006,18.499994,27.350006L29.521993,27.350006C29.707998,27.350006,29.865988,27.195007,29.865988,27.01001L29.865988,19.656006C29.865988,19.472,29.707998,19.317001,29.521993,19.317001z M17.243006,17.443008L30.778003,17.443008C31.425007,17.445007,31.947986,17.962006,31.950001,18.602997L31.950001,28.542007C31.947986,29.182999,31.425007,29.702011,30.778003,29.703003L25.654012,29.703003C25.511007,29.703003 25.399008,29.824997 25.413992,29.964996 25.430013,30.13501 25.452993,30.360001 25.477011,30.559998 25.506002,30.809998 25.727987,30.980011 25.976003,31.033997L27.756002,31.419006C27.907003,31.452011 28.015005,31.584 28.015005,31.738007 28.015005,31.883011 27.895986,32 27.74999,32L27.571005,32 20.450004,32 20.318016,32C20.171013,32 20.053001,31.883011 20.053001,31.738007 20.053001,31.585007 20.161003,31.452011 20.312004,31.419998L22.115989,31.033005C22.35601,30.98201 22.572014,30.815002 22.596,30.574005 22.616997,30.363007 22.636009,30.130997 22.648002,29.960007 22.658012,29.819 22.542015,29.70401 22.399986,29.70401L17.243006,29.703003C16.596002,29.702011,16.072992,29.182999,16.071008,28.542007L16.071008,18.602997C16.072992,17.962006,16.596002,17.445007,17.243006,17.443008z M7.9750035,16.133011C8.6020172,16.133011 9.1100128,16.641006 9.1100128,17.268005 9.1100128,17.893997 8.6020172,18.402008 7.9750035,18.402008 7.3489964,18.402008 6.8410013,17.893997 6.8410013,17.268005 6.8410013,16.641006 7.3489964,16.133011 7.9750035,16.133011z M24.027,13.762009C24.654014,13.762009 25.16201,14.270004 25.16201,14.895996 25.16201,15.522003 24.654014,16.029999 24.027,16.029999 23.400993,16.029999 22.892998,15.522003 22.892998,14.895996 22.892998,14.270004 23.400993,13.762009 24.027,13.762009z M24.027,9.6110077C24.653007,9.6110077 25.161003,10.119003 25.161003,10.74501 25.161003,11.37001 24.653007,11.878006 24.027,11.878006 23.402,11.878006 22.894005,11.37001 22.894005,10.74501 22.894005,10.119003 23.402,9.6110077 24.027,9.6110077z M24.027,5.6000061C24.654014,5.6000061 25.16201,6.1080017 25.16201,6.7350006 25.16201,7.3610077 24.654014,7.8690033 24.027,7.8690033 23.400993,7.8690033 22.892998,7.3610077 22.892998,6.7350006 22.892998,6.1080017 23.400993,5.6000061 24.027,5.6000061z M19.876001,5.6000061C20.503013,5.6000061 21.011009,6.1080017 21.011009,6.7350006 21.011009,7.3610077 20.503013,7.8690033 19.876001,7.8690033 19.249994,7.8690033 18.743006,7.3610077 18.743006,6.7350006 18.743006,6.1080017 19.249994,5.6000061 19.876001,5.6000061z M2.4290157,1.8740082C2.2420037,1.8740082,2.0850215,2.029007,2.0850215,2.2140045L2.0850215,9.5680084C2.0850215,9.753006,2.2420037,9.9069977,2.4290157,9.9069977L13.451014,9.9069977C13.637995,9.9069977,13.795008,9.753006,13.795008,9.5680084L13.795008,2.2140045C13.795008,2.029007,13.637995,1.8740082,13.451014,1.8740082z M1.1730042,0L14.706996,0C15.353999,0.0019989014,15.877009,0.51899719,15.878993,1.1600037L15.878993,11.100006C15.877009,11.740005,15.353999,12.26001,14.706996,12.26001L9.5830047,12.26001C9.4399994,12.26001 9.3290069,12.382004 9.3420074,12.52301 9.3600128,12.692001 9.3829925,12.917999 9.4060028,13.117004 9.4349945,13.367004 9.6570099,13.53801 9.9049957,13.591003L11.684994,13.975998C11.835994,14.009003 11.945003,14.141998 11.945003,14.294998 11.945003,14.440002 11.826015,14.557007 11.679012,14.557007L11.499996,14.557007 4.3789966,14.557007 4.2470081,14.557007C4.1000049,14.557007 3.9819935,14.440002 3.9819937,14.294998 3.9819935,14.141998 4.0899952,14.009003 4.2409961,13.977005L6.0450113,13.589996C6.2860086,13.539001 6.501005,13.373001 6.5249918,13.130997 6.5460184,12.921005 6.5650003,12.688004 6.5769937,12.516998 6.5870035,12.376999 6.4710062,12.262009 6.3290079,12.262009L1.1730042,12.26001C0.52499391,12.26001,0.0020143806,11.740005,0,11.100006L0,1.1600037C0.0020143806,0.51899719,0.52499391,0.0019989014,1.1730042,0z"/>' +
'</g>"
)
});
ViewBag.SvgShapes = SvgNodes;
List < DiagramNode > HtmlNodes = new List < DiagramNode > ();
HtmlNodes.Add(new DiagramNode() {
Id = "Button", Shape = new {
type = "HTML", content = "<div style="
height: 100 % ;
width: 100 % ;
"><button type="
button " style="
width: 100 % ;
overflow: hidden ">HTML</button></div>"
}
});
HtmlNodes.Add(new DiagramNode() {
Id = "Checkbox", Shape = new {
type = "HTML", content = "<div><div style="
height: 50 % ;
width: 100 % ;
"><input type="
checkbox " value="
Yes " style="
width: 25 % ">Yes</input></div>' +
'<div style="height:50%;width:100%;"><input type="checkbox" value="No" style="width:25%">No</input></div></div>"}
}); HtmlNodes.Add(new DiagramNode() {
Id = "Dropdown", Shape = new {
type = "HTML", content = "<<div style="
height: 100 % ;
width: 100 % ;
"><select style="
width: 100 % "><option>SVG</option><option>Canvas</option></select></div>"
}
}); ViewBag.HtmlShapes = HtmlNodes;
List < DiagramConnector > connector = new List < DiagramConnector > (); connector.Add(new DiagramConnector() {
Id = "link1", Type = Segments.Orthogonal, SourcePoint = new DiagramPoint() {
X = 0, Y = 0
}, TargetPoint = new DiagramPoint() {
X = 40, Y = 40
}, TargetDecorator = new ConnectorTargetDecoratorConnectors() {
Shape = DecoratorShapes.Arrow
}, Style = new DiagramStrokeStyle() {
StrokeWidth = 2
}
}); connector.Add(new DiagramConnector() {
Id = "link3", Type = Segments.Orthogonal, SourcePoint = new DiagramPoint() {
X = 0, Y = 0
}, TargetPoint = new DiagramPoint() {
X = 40, Y = 40
}, TargetDecorator = new ConnectorTargetDecoratorConnectors() {
Shape = DecoratorShapes.None
}
}); connector.Add(new DiagramConnector() {
Id = "Link21", Type = Segments.Straight, SourcePoint = new DiagramPoint() {
X = 0, Y = 0
}, TargetPoint = new DiagramPoint() {
X = 40, Y = 40
}, TargetDecorator = new ConnectorTargetDecoratorConnectors() {
Shape = DecoratorShapes.Arrow
}, Style = new DiagramStrokeStyle() {
StrokeWidth = 2
}
}); connector.Add(new DiagramConnector() {
Id = "link23", Type = Segments.Straight, SourcePoint = new DiagramPoint() {
X = 0, Y = 0
}, TargetPoint = new DiagramPoint() {
X = 40, Y = 40
}, TargetDecorator = new ConnectorTargetDecoratorConnectors() {
Shape = DecoratorShapes.None
}
}); connector.Add(new DiagramConnector() {
Id = "link33", Type = Segments.Bezier, SourcePoint = new DiagramPoint() {
X = 0, Y = 0
}, TargetPoint = new DiagramPoint() {
X = 40, Y = 40
}, TargetDecorator = new ConnectorTargetDecoratorConnectors() {
Shape = DecoratorShapes.None
}
}); ViewBag.Connectors = connector;
List < SymbolPalettePalette > palettes = new List < SymbolPalettePalette > (); palettes.Add(new SymbolPalettePalette() {
Id = "flow", Expanded = true, Symbols = SymbolPaletee, IconCss = "e-ddb-icons e-basic", Title = "Flow Shapes"
}); palettes.Add(new SymbolPalettePalette() {
Id = "basic", Expanded = true, Symbols = BasicNodes, IconCss = "e-ddb-icons e-flow", Title = "Basic Shapes"
});
palettes.Add(new SymbolPalettePalette() { Id="svg", Expanded = true, symbols = SvgNodes, Title = "SVG Shapes" });
palettes.Add(new SymbolPalettePalette() { Id="html", Expanded = true, symbols = HtmlNodes, Title = "HTML Shapes" });
palettes.Add(new SymbolPalettePalette() {
Id = "connectors", Expanded = true, Symbols = connector, IconCss = "e-ddb-icons e-connector", Title = "Connectors"
}); ViewBag.palettes = palettes;
return View();
}
}
}Customize the palette header
Palettes can be annotated with its header texts.
The title displayed as the header text of palette.
The expanded property of palette allows to expand/collapse its palette items.
The height property of palette sets the height of the symbol group.
The iconCss property sets the content of the symbol group.
The description defines the text to be displayed and how that is to be handled in getSymbolInfo.
Also, any HTML element into a palette header can be embedded by defining the getSymbolInfo property.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Syncfusion.EJ2.Diagrams;
using System.Drawing;
namespace EJ2MVCSampleBrowser.Controllers.Diagram {
public partial class DiagramController: Controller {
// GET: Nodes
public ActionResult Nodes() {
List < DiagramNode > SymbolPaletee = new List < DiagramNode > ();
SymbolPaletee.Add(new FlowShapes() {
Id = "Terminator", Shape = new {
type = "Flow", shape = "Terminator"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "Terminator", Shape = new {
type = "Flow", shape = "Terminator"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "Process", Shape = new {
type = "Flow", shape = "Process"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "Decision", Shape = new {
type = "Flow", shape = "Decision"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "Document", Shape = new {
type = "Flow", shape = "Document"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "PreDefinedProcess", Shape = new {
type = "Flow", shape = "PreDefinedProcess"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "PaperTap", Shape = new {
type = "Flow", shape = "PaperTap"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "DirectData", Shape = new {
type = "Flow", shape = "DirectData"
}
});
SymbolPaletee.Add(new FlowShapes() {
Id = "SequentialData", Shape = new {
type = "Flow", shape = "SequentialData"
}
});
List < DiagramNode > BasicNodes = new List < DiagramNode > ();
BasicNodes.Add(new DiagramNode() {
Id = "Rectangle", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Rectangle
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Ellipse", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Ellipse
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Parallelogram", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Parallelogram
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Triangle", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Triangle
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Hexagon", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Hexagon
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Pentagon", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Pentagon
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Cylinder", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Cylinder
}
});
BasicNodes.Add(new DiagramNode() {
Id = "Star", Shape = new DiagramBasicShape() {
Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Star
}
});
ViewBag.BasicShapes = BasicNodes;
List < DiagramNode > SvgNodes = new List < DiagramNode > ();
SvgNodes.Add(new DiagramNode() {
Id = "Native", Style = new NodeStyleNodes() {
Fill = "None"
}, Shape = new {
type = "Native"
content = "<g xmlns="
http: //www.w3.org/2000/svg"> <g transform="translate(1 1)"> <g> <path style="fill:#61443C;" d="M61.979,435.057c2.645-0.512,5.291-0.853,7.936-1.109c-2.01,1.33-4.472,1.791-6.827,1.28 C62.726,435.13,62.354,435.072,61.979,435.057z"/> <path style="fill:#61443C;" d="M502.469,502.471h-25.6c0.163-30.757-20.173-57.861-49.749-66.304 c-5.784-1.581-11.753-2.385-17.749-2.389c-2.425-0.028-4.849,0.114-7.253,0.427c1.831-7.63,2.747-15.45,2.731-23.296 c0.377-47.729-34.52-88.418-81.749-95.317c4.274-0.545,8.577-0.83,12.885-0.853c25.285,0.211,49.448,10.466,67.167,28.504 c17.719,18.039,27.539,42.382,27.297,67.666c0.017,7.846-0.9,15.666-2.731,23.296c2.405-0.312,4.829-0.455,7.253-0.427 C472.572,434.123,502.783,464.869,502.469,502.471z"/> </g> <path style="fill:#8B685A;" d="M476.869,502.471H7.536c-0.191-32.558,22.574-60.747,54.443-67.413 c0.375,0.015,0.747,0.072,1.109,0.171c2.355,0.511,4.817,0.05,6.827-1.28c1.707-0.085,3.413-0.171,5.12-0.171 c4.59,0,9.166,0.486,13.653,1.451c2.324,0.559,4.775,0.147,6.787-1.141c2.013-1.288,3.414-3.341,3.879-5.685 c7.68-39.706,39.605-70.228,79.616-76.117c4.325-0.616,8.687-0.929,13.056-0.939c13.281-0.016,26.409,2.837,38.485,8.363 c3.917,1.823,7.708,3.904,11.349,6.229c2.039,1.304,4.527,1.705,6.872,1.106c2.345-0.598,4.337-2.142,5.502-4.264 c14.373-25.502,39.733-42.923,68.693-47.189h0.171c47.229,6.899,82.127,47.588,81.749,95.317c0.017,7.846-0.9,15.666-2.731,23.296 c2.405-0.312,4.829-0.455,7.253-0.427c5.996,0.005,11.965,0.808,17.749,2.389C456.696,444.61,477.033,471.713,476.869,502.471 L476.869,502.471z"/> <path style="fill:#66993E;" d="M502.469,7.537c0,0-6.997,264.96-192.512,252.245c-20.217-1.549-40.166-5.59-59.392-12.032 c-1.365-0.341-2.731-0.853-4.096-1.28c0,0-0.597-2.219-1.451-6.144c-6.656-34.048-25.088-198.997,231.765-230.144 C485.061,9.159,493.595,8.22,502.469,7.537z"/> <path style="fill:#9ACA5C;" d="M476.784,10.183c-1.28,26.197-16.213,238.165-166.827,249.6 c-20.217-1.549-40.166-5.59-59.392-12.032c-1.365-0.341-2.731-0.853-4.096-1.28c0,0-0.597-2.219-1.451-6.144 C238.363,206.279,219.931,41.329,476.784,10.183z"/> <path style="fill:#66993E;" d="M206.192,246.727c-0.768,3.925-1.365,6.144-1.365,6.144c-1.365,0.427-2.731,0.939-4.096,1.28 c-21.505,7.427-44.293,10.417-66.987,8.789C21.104,252.103,8.816,94.236,7.621,71.452c-0.085-1.792-0.085-2.731-0.085-2.731 C222.747,86.129,211.653,216.689,206.192,246.727z"/> <path style="fill:#9ACA5C;" d="M180.336,246.727c-0.768,3.925-1.365,6.144-1.365,6.144c-1.365,0.427-2.731,0.939-4.096,1.28 c-13.351,4.412-27.142,7.359-41.131,8.789C21.104,252.103,8.816,94.236,7.621,71.452 C195.952,96.881,185.541,217.969,180.336,246.727z"/> </g> <g> <path d="M162.136,426.671c3.451-0.001,6.562-2.08,7.882-5.268s0.591-6.858-1.849-9.298l-8.533-8.533 c-3.341-3.281-8.701-3.256-12.012,0.054c-3.311,3.311-3.335,8.671-0.054,12.012l8.533,8.533 C157.701,425.773,159.872,426.673,162.136,426.671L162.136,426.671z"/> <path 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}, TargetPoint = new DiagramPoint() {
X = 40, Y = 40
}, TargetDecorator = new ConnectorTargetDecoratorConnectors() {
Shape = DecoratorShapes.None
}
}); connector.Add(new DiagramConnector() {
Id = "link33", Type = Segments.Bezier, SourcePoint = new DiagramPoint() {
X = 0, Y = 0
}, TargetPoint = new DiagramPoint() {
X = 40, Y = 40
}, TargetDecorator = new ConnectorTargetDecoratorConnectors() {
Shape = DecoratorShapes.None
}
}); ViewBag.Connectors = connector;
List < SymbolPalettePalette > palettes = new List < SymbolPalettePalette > (); palettes.Add(new SymbolPalettePalette() {
Id = "flow", Expanded = true, Symbols = SymbolPaletee, IconCss = "e-ddb-icons e-basic", Title = "Flow Shapes"
}); palettes.Add(new SymbolPalettePalette() {
Id = "basic", Expanded = true, Symbols = BasicNodes, IconCss = "e-ddb-icons e-flow", Title = "Basic Shapes"
});
palettes.Add(new SymbolPalettePalette() { Id="svg", Expanded = true, symbols = SvgNodes, Title = "SVG Shapes" });
palettes.Add(new SymbolPalettePalette() { Id="html", Expanded = true, symbols = HtmlNodes, Title = "HTML Shapes" });
palettes.Add(new SymbolPalettePalette() {
Id = "connectors", Expanded = true, Symbols = connector, IconCss = "e-ddb-icons e-connector", Title = "Connectors"
}); ViewBag.palettes = palettes;
return View();
}
}
} function getSymbolInfo(symbol) {
if (symbol['text'] !== undefined) {
return {
width: 75,
height: 40,
//Add or Remove the Text for Symbol palette item.
description: {
//Defines the symbol description
text: symbol['text'],
//Defines how to handle the text when its size exceeds the given symbol size
overflow: 'Wrap'
}
};
}
return {
width: 75,
height: 40,
description: {
text: symbol.shape['shape']
}
};
}Restrict expansion of the palette panel
The symbol palette panel can be restricted from getting expanded. The cancel argument of the paletteExpanding property defines whether the palette’s panel should be expanded or collapsed. By default, the panel is expanded. This restriction can be done for each of the palettes in the symbol palette as desired. In the following code example the basic shapes palette is restricted from getting collapsed whereas the swimlane shapes palette can be expanded or collapsed.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Syncfusion.EJ2.Diagrams;
using System.Drawing;
namespace EJ2MVCSampleBrowser.Controllers.Diagram {
public partial class DiagramController: Controller {
// GET: Nodes
public ActionResult Nodes() {
List<DiagramNode> SymbolPaletee = new List<DiagramNode>();
SymbolPaletee.Add(new FlowShapes() { Id = "Process", Shape = new { type = "Flow", shape = "Process" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Document", Shape = new { type = "Flow", shape = "Document" } });
List<DiagramNode> BasicNodes = new List<DiagramNode>();
BasicNodes.Add(new DiagramNode() { Id = "Rectangle", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Rectangle } });
BasicNodes.Add(new DiagramNode() { Id = "Ellipse", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Ellipse } });
BasicNodes.Add(new DiagramNode() { Id = "Hexagon", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Hexagon } });
ViewBag.BasicShapes = BasicNodes;
List<SymbolPalettePalette> palettes = new List<SymbolPalettePalette>();
palettes.Add(new SymbolPalettePalette() { Id = "flow", Expanded = true, Symbols = SymbolPaletee, IconCss = "e-ddb-icons e-basic", Title = "Flow Shapes" });
palettes.Add(new SymbolPalettePalette() { Id = "basic", Expanded = true, Symbols = BasicNodes, IconCss = "e-ddb-icons e-flow", Title = "Basic Shapes" });
ViewBag.palettes = palettes;
ViewBag.paletteExpanding = "paletteExpanding";
return View();
}
}
} function paletteExpanding(args) {
if(args.palette.id === 'basic') {
// Basic shapes panel does not collapse
args.cancel = true;
} else {
// Swimlane shapes panel collapse and expand
args.cancel = false;
}
}Stretch the symbols into the palette
The fit property defines whether the symbol has to be fit inside the size, that is defined by the symbol palette. For example, when you resize the rectangle in the symbol, ratio of the rectangle size has to be maintained rather changing into square shape.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Syncfusion.EJ2.Diagrams;
using System.Drawing;
namespace EJ2MVCSampleBrowser.Controllers.Diagram {
public partial class DiagramController: Controller {
// GET: Nodes
public ActionResult Nodes() {
List<DiagramNode> SymbolPaletee = new List<DiagramNode>();
SymbolPaletee.Add(new FlowShapes() { Id = "Terminator", Shape = new { type = "Flow", shape = "Terminator" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Terminator", Shape = new { type = "Flow", shape = "Terminator" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Process", Shape = new { type = "Flow", shape = "Process" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Decision", Shape = new { type = "Flow", shape = "Decision" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Document", Shape = new { type = "Flow", shape = "Document" } });
SymbolPaletee.Add(new FlowShapes() { Id = "PreDefinedProcess", Shape = new { type = "Flow", shape = "PreDefinedProcess" } });
SymbolPaletee.Add(new FlowShapes() { Id = "PaperTap", Shape = new { type = "Flow", shape = "PaperTap" } });
SymbolPaletee.Add(new FlowShapes() { Id = "DirectData", Shape = new { type = "Flow", shape = "DirectData" } });
SymbolPaletee.Add(new FlowShapes() { Id = "SequentialData", Shape = new { type = "Flow", shape = "SequentialData" } });
List<DiagramNode> BasicNodes = new List<DiagramNode>();
BasicNodes.Add(new DiagramNode() { Id = "Rectangle", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Rectangle } });
BasicNodes.Add(new DiagramNode() { Id = "Ellipse", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Ellipse } });
BasicNodes.Add(new DiagramNode() { Id = "Parallelogram", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Parallelogram } });
BasicNodes.Add(new DiagramNode() { Id = "Triangle", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Triangle } });
BasicNodes.Add(new DiagramNode() { Id = "Hexagon", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Hexagon } });
BasicNodes.Add(new DiagramNode() { Id = "Pentagon", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Pentagon } });
BasicNodes.Add(new DiagramNode() { Id = "Cylinder", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Cylinder } });
BasicNodes.Add(new DiagramNode() { Id = "Star", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Star } });
ViewBag.BasicShapes = BasicNodes;
List<DiagramConnector> connector = new List<DiagramConnector>();
connector.Add(new DiagramConnector() { Id = "link1", Type = Segments.Orthogonal, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.Arrow }, Style = new DiagramStrokeStyle() { StrokeWidth = 2 } });
connector.Add(new DiagramConnector() { Id = "link3", Type = Segments.Orthogonal, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.None } });
connector.Add(new DiagramConnector() { Id = "Link21", Type = Segments.Straight, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.Arrow }, Style = new DiagramStrokeStyle() { StrokeWidth = 2 } });
connector.Add(new DiagramConnector() { Id = "link23", Type = Segments.Straight, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.None } });
connector.Add(new DiagramConnector() { Id = "link33", Type = Segments.Bezier, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.None } });
ViewBag.Connectors = connector;
List<SymbolPalettePalette> palettes = new List<SymbolPalettePalette>();
palettes.Add(new SymbolPalettePalette() { Id = "flow", Expanded = true, Symbols = SymbolPaletee, IconCss = "e-ddb-icons e-basic", Title = "Flow Shapes" });
palettes.Add(new SymbolPalettePalette() { Id = "basic", Expanded = true, Symbols = BasicNodes, IconCss = "e-ddb-icons e-flow", Title = "Basic Shapes" });
palettes.Add(new SymbolPalettePalette() { Id = "connectors", Expanded = true, Symbols = connector, IconCss = "e-ddb-icons e-connector", Title = "Connectors" });
ViewBag.palettes = palettes;
ViewBag.getNodeDefaults = "getNodeDefaults";
ViewBag.getSymbolInfo = "getSymbolInfo";
return View();
}
}
} function getSymbolInfo(symbol) {
return { fit: true };
}Add/Remove symbols to palette at runtime
-
Symbols can be added to palette at runtime by using public method,
addPaletteItem. -
Symbols can be removed from palette at runtime by using public method,
removePaletteItem.
Customize the size of symbols
The size of the individual symbol can be customized. The symbolWidth and symbolHeight properties of node enables to define the size of the symbols.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Syncfusion.EJ2.Diagrams;
using System.Drawing;
namespace EJ2MVCSampleBrowser.Controllers.Diagram {
public partial class DiagramController: Controller {
// GET: Nodes
public ActionResult Nodes() {
List<DiagramNode> SymbolPaletee = new List<DiagramNode>();
SymbolPaletee.Add(new FlowShapes() { Id = "Terminator", Shape = new { type = "Flow", shape = "Terminator" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Terminator", Shape = new { type = "Flow", shape = "Terminator" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Process", Shape = new { type = "Flow", shape = "Process" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Decision", Shape = new { type = "Flow", shape = "Decision" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Document", Shape = new { type = "Flow", shape = "Document" } });
SymbolPaletee.Add(new FlowShapes() { Id = "PreDefinedProcess", Shape = new { type = "Flow", shape = "PreDefinedProcess" } });
SymbolPaletee.Add(new FlowShapes() { Id = "PaperTap", Shape = new { type = "Flow", shape = "PaperTap" } });
SymbolPaletee.Add(new FlowShapes() { Id = "DirectData", Shape = new { type = "Flow", shape = "DirectData" } });
SymbolPaletee.Add(new FlowShapes() { Id = "SequentialData", Shape = new { type = "Flow", shape = "SequentialData" } });
List<DiagramNode> BasicNodes = new List<DiagramNode>();
BasicNodes.Add(new DiagramNode() { Id = "Rectangle", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Rectangle } });
BasicNodes.Add(new DiagramNode() { Id = "Ellipse", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Ellipse } });
BasicNodes.Add(new DiagramNode() { Id = "Parallelogram", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Parallelogram } });
BasicNodes.Add(new DiagramNode() { Id = "Triangle", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Triangle } });
BasicNodes.Add(new DiagramNode() { Id = "Hexagon", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Hexagon } });
BasicNodes.Add(new DiagramNode() { Id = "Pentagon", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Pentagon } });
BasicNodes.Add(new DiagramNode() { Id = "Cylinder", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Cylinder } });
BasicNodes.Add(new DiagramNode() { Id = "Star", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Star } });
ViewBag.BasicShapes = BasicNodes;
List<DiagramConnector> connector = new List<DiagramConnector>();
connector.Add(new DiagramConnector() { Id = "link1", Type = Segments.Orthogonal, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.Arrow }, Style = new DiagramStrokeStyle() { StrokeWidth = 2 } });
connector.Add(new DiagramConnector() { Id = "link3", Type = Segments.Orthogonal, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.None } });
connector.Add(new DiagramConnector() { Id = "Link21", Type = Segments.Straight, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.Arrow }, Style = new DiagramStrokeStyle() { StrokeWidth = 2 } });
connector.Add(new DiagramConnector() { Id = "link23", Type = Segments.Straight, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.None } });
connector.Add(new DiagramConnector() { Id = "link33", Type = Segments.Bezier, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.None } });
ViewBag.Connectors = connector;
List<SymbolPalettePalette> palettes = new List<SymbolPalettePalette>();
palettes.Add(new SymbolPalettePalette() { Id = "flow", Expanded = true, Symbols = SymbolPaletee, IconCss = "e-ddb-icons e-basic", Title = "Flow Shapes" });
palettes.Add(new SymbolPalettePalette() { Id = "basic", Expanded = true, Symbols = BasicNodes, IconCss = "e-ddb-icons e-flow", Title = "Basic Shapes" });
palettes.Add(new SymbolPalettePalette() { Id = "connectors", Expanded = true, Symbols = connector, IconCss = "e-ddb-icons e-connector", Title = "Connectors" });
ViewBag.palettes = palettes;
ViewBag.getNodeDefaults = "getNodeDefaults";
ViewBag.getSymbolInfo = "getSymbolInfo";
return View();
}
}
}The symbolMargin property is used to create the space around elements, outside of any defined borders.
Symbol preview
The symbol preview size of the palette items can be customized using symbolPreview. The width and height properties of SymbolPalette enables to define the preview size to all the symbol palette items. The offset of the dragging helper relative to the mouse cursor.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Syncfusion.EJ2.Diagrams;
using System.Drawing;
namespace EJ2MVCSampleBrowser.Controllers.Diagram {
public partial class DiagramController: Controller {
// GET: Nodes
public ActionResult Nodes() {
List<DiagramNode> SymbolPaletee = new List<DiagramNode>();
SymbolPaletee.Add(new FlowShapes() { Id = "Terminator", Shape = new { type = "Flow", shape = "Terminator" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Terminator", Shape = new { type = "Flow", shape = "Terminator" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Process", Shape = new { type = "Flow", shape = "Process" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Decision", Shape = new { type = "Flow", shape = "Decision" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Document", Shape = new { type = "Flow", shape = "Document" } });
SymbolPaletee.Add(new FlowShapes() { Id = "PreDefinedProcess", Shape = new { type = "Flow", shape = "PreDefinedProcess" } });
SymbolPaletee.Add(new FlowShapes() { Id = "PaperTap", Shape = new { type = "Flow", shape = "PaperTap" } });
SymbolPaletee.Add(new FlowShapes() { Id = "DirectData", Shape = new { type = "Flow", shape = "DirectData" } });
SymbolPaletee.Add(new FlowShapes() { Id = "SequentialData", Shape = new { type = "Flow", shape = "SequentialData" } });
List<DiagramNode> BasicNodes = new List<DiagramNode>();
BasicNodes.Add(new DiagramNode() { Id = "Rectangle", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Rectangle } });
BasicNodes.Add(new DiagramNode() { Id = "Ellipse", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Ellipse } });
BasicNodes.Add(new DiagramNode() { Id = "Parallelogram", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Parallelogram } });
BasicNodes.Add(new DiagramNode() { Id = "Triangle", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Triangle } });
BasicNodes.Add(new DiagramNode() { Id = "Hexagon", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Hexagon } });
BasicNodes.Add(new DiagramNode() { Id = "Pentagon", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Pentagon } });
BasicNodes.Add(new DiagramNode() { Id = "Cylinder", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Cylinder } });
BasicNodes.Add(new DiagramNode() { Id = "Star", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Star } });
ViewBag.BasicShapes = BasicNodes;
List<DiagramConnector> connector = new List<DiagramConnector>();
connector.Add(new DiagramConnector() { Id = "link1", Type = Segments.Orthogonal, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.Arrow }, Style = new DiagramStrokeStyle() { StrokeWidth = 2 } });
connector.Add(new DiagramConnector() { Id = "link3", Type = Segments.Orthogonal, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.None } });
connector.Add(new DiagramConnector() { Id = "Link21", Type = Segments.Straight, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.Arrow }, Style = new DiagramStrokeStyle() { StrokeWidth = 2 } });
connector.Add(new DiagramConnector() { Id = "link23", Type = Segments.Straight, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.None } });
connector.Add(new DiagramConnector() { Id = "link33", Type = Segments.Bezier, SourcePoint = new DiagramPoint() { X = 0, Y = 0 }, TargetPoint = new DiagramPoint() { X = 40, Y = 40 }, TargetDecorator = new ConnectorTargetDecoratorConnectors() { Shape = DecoratorShapes.None } });
ViewBag.Connectors = connector;
List<SymbolPalettePalette> palettes = new List<SymbolPalettePalette>();
palettes.Add(new SymbolPalettePalette() { Id = "flow", Expanded = true, Symbols = SymbolPaletee, IconCss = "e-ddb-icons e-basic", Title = "Flow Shapes" });
palettes.Add(new SymbolPalettePalette() { Id = "basic", Expanded = true, Symbols = BasicNodes, IconCss = "e-ddb-icons e-flow", Title = "Basic Shapes" });
palettes.Add(new SymbolPalettePalette() { Id = "connectors", Expanded = true, Symbols = connector, IconCss = "e-ddb-icons e-connector", Title = "Connectors" });
ViewBag.palettes = palettes;
ViewBag.getNodeDefaults = "getNodeDefaults";
ViewBag.getSymbolInfo = "getSymbolInfo";
return View();
}
}
}Default settings
While adding more number of symbols such as nodes and connectors to the palette, define the default settings for those objects through the getNodeDefaults and the getConnectorDefaults properties of diagram allows to define the default settings for nodes and connectors.
@(Html.EJS().SymbolPalette("symbolPalette").Palettes(ViewBag.Palette).GetSymbolInfo("getSymbolInfo").Width("100%").Height("570px")
.SymbolHeight(48).SymbolWidth(48).Render())using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Syncfusion.EJ2.Diagrams;
using System.Drawing;
namespace EJ2MVCSampleBrowser.Controllers.Diagram {
public partial class DiagramController: Controller {
// GET: Nodes
public ActionResult Nodes() {
List<DiagramNode> SymbolPaletee = new List<DiagramNode>();
SymbolPaletee.Add(new FlowShapes() { Id = "Process", Shape = new { type = "Flow", shape = "Process" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Document", Shape = new { type = "Flow", shape = "Document" } });
List<DiagramNode> BasicNodes = new List<DiagramNode>();
BasicNodes.Add(new DiagramNode() { Id = "Rectangle", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Rectangle } });
BasicNodes.Add(new DiagramNode() { Id = "Ellipse", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Ellipse } });
BasicNodes.Add(new DiagramNode() { Id = "Hexagon", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Hexagon } });
ViewBag.BasicShapes = BasicNodes;
List<SymbolPalettePalette> palettes = new List<SymbolPalettePalette>();
palettes.Add(new SymbolPalettePalette() { Id = "flow", Expanded = true, Symbols = SymbolPaletee, IconCss = "e-ddb-icons e-basic", Title = "Flow Shapes" });
palettes.Add(new SymbolPalettePalette() { Id = "basic", Expanded = true, Symbols = BasicNodes, IconCss = "e-ddb-icons e-flow", Title = "Basic Shapes" });
ViewBag.palettes = palettes;
ViewBag.getSymbolInfo = "getSymbolInfo";
return View();
}
}
} function getNodeDefaults(symbol) {
if (symbol.id === 'Terminator' || symbol.id === 'Process') {
symbol.width = 80;
symbol.height = 40;
} else if (symbol.id === 'Document' || symbol.id === 'PreDefinedProcess' ||
symbol.id === 'PaperTap' || symbol.id === 'DirectData') {
symbol.width = 50;
symbol.height = 40;
}
symbol.style = {
strokeWidth: 2
};
}
function getSymbolInfo(symbol) {
return {
fit: true
};
}Adding symbol description for symbols in the palette
The diagram provides support to add symbol description below each symbol of a palette. This descriptive representation of each symbol will enhance the details of the symbol visually. The height and width of the symbol description can also be set individually.
- The property
getSymbolInfocan be used to add the symbol description at runtime.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Syncfusion.EJ2.Diagrams;
using System.Drawing;
namespace EJ2MVCSampleBrowser.Controllers.Diagram {
public partial class DiagramController: Controller {
// GET: Nodes
public ActionResult Nodes() {
List<DiagramNode> SymbolPaletee = new List<DiagramNode>();
SymbolPaletee.Add(new FlowShapes() { Id = "Process", Shape = new { type = "Flow", shape = "Process" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Document", Shape = new { type = "Flow", shape = "Document" } });
List<DiagramNode> BasicNodes = new List<DiagramNode>();
BasicNodes.Add(new DiagramNode() { Id = "Rectangle", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Rectangle } });
BasicNodes.Add(new DiagramNode() { Id = "Ellipse", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Ellipse } });
BasicNodes.Add(new DiagramNode() { Id = "Hexagon", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Hexagon } });
ViewBag.BasicShapes = BasicNodes;
List<SymbolPalettePalette> palettes = new List<SymbolPalettePalette>();
palettes.Add(new SymbolPalettePalette() { Id = "flow", Expanded = true, Symbols = SymbolPaletee, IconCss = "e-ddb-icons e-basic", Title = "Flow Shapes" });
palettes.Add(new SymbolPalettePalette() { Id = "basic", Expanded = true, Symbols = BasicNodes, IconCss = "e-ddb-icons e-flow", Title = "Basic Shapes" });
ViewBag.palettes = palettes;
ViewBag.getSymbolInfo = "getSymbolInfo";
return View();
}
}
} function getSymbolInfo(symbol) {
if (symbol['text'] !== undefined) {
return {
width: 75,
height: 40,
//Add or Remove the Text for Symbol palette item.
description: {
//Defines the symbol description
text: symbol['text'],
//Defines how to handle the text when its size exceeds the given symbol size
overflow: 'Wrap'
}
};
}
return {
width: 75,
height: 40,
description: {
text: symbol.shape['shape']
}
};
}Tooltip for symbols in symbol palette
The Symbol palette supports displaying tooltips when mouse hovers over the symbols. You can customize the tooltip for each symbol in the symbol palette.
Default tooltip for symbols
When hovering over symbols in the symbol palette, the default tooltip displays the symbol’s ID.
Refer to the image below for an illustration of the tooltip behavior in the symbol palette.
Custom tooltip for symbols
To customize the tooltips for symbols in the symbol palette, assign a custom tooltip to the ‘Tooltip’ content property of each symbol. Once you define the custom tooltip, enable the Tooltip constraints for each symbol, ensuring that the tooltips are displayed when users hover over them.
Here, the code provided below demonstrates how to define tooltip content to symbols within a symbol palette.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Syncfusion.EJ2.Diagrams;
using System.Drawing;
namespace EJ2MVCSampleBrowser.Controllers.Diagram {
public partial class DiagramController: Controller {
// GET: Nodes
public ActionResult Nodes() {
List<DiagramNode> SymbolPaletee = new List<DiagramNode>();
SymbolPaletee.Add(new FlowShapes() { Id = "Process", Shape = new { type = "Flow", shape = "Process" } });
SymbolPaletee.Add(new FlowShapes() { Id = "Document", Shape = new { type = "Flow", shape = "Document" } });
List<DiagramNode> BasicNodes = new List<DiagramNode>();
BasicNodes.Add(new DiagramNode() { Id = "Rectangle", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Rectangle } });
BasicNodes.Add(new DiagramNode() { Id = "Ellipse", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Ellipse },
//To display customized tooltip content by enabling Tooltip Constraints
Tooltip = new DiagramDiagramTooltip() { Content = "Customised Tooltip"},
Constraints = NodeConstraints.Default | NodeConstraints.Tooltip });
BasicNodes.Add(new DiagramNode() { Id = "Hexagon", Shape = new DiagramBasicShape() { Type = Syncfusion.EJ2.Diagrams.Shapes.Basic, Shape = BasicShapes.Hexagon } });
ViewBag.BasicShapes = BasicNodes;
List<SymbolPalettePalette> palettes = new List<SymbolPalettePalette>();
palettes.Add(new SymbolPalettePalette() { Id = "flow", Expanded = true, Symbols = SymbolPaletee, IconCss = "e-ddb-icons e-basic", Title = "Flow Shapes" });
palettes.Add(new SymbolPalettePalette() { Id = "basic", Expanded = true, Symbols = BasicNodes, IconCss = "e-ddb-icons e-flow", Title = "Basic Shapes" });
ViewBag.palettes = palettes;
ViewBag.getSymbolInfo = "getSymbolInfo";
return View();
}
}
}How to provide different tooltip for Symbol palette and diagram elements.
Differentiate the tooltips between symbols in the symbol palette and dropped nodes by utilizing the dragEnter event. When a custom tooltip is defined for a symbol, it will be displayed for both the symbol and the dropped node in the diagram canvas. However, to provide distinct tooltips for symbols in the palette and dropped nodes, capture the dragEnter event and assign specific tooltips dynamically.
When a symbol is dragged from the symbol palette and enters the diagram canvas, the [DragEnter] IDragEnterEventArgs event is triggered. Within this event, you can define a new tooltip for the dropped node. By assigning custom tooltip content to the Tooltip property of the node, you can provide a distinct tooltip that is specific to the dropped node.
The following image illustrates the differentiation of tooltips displayed in the Symbol Palette and the Diagram.
The following code snippet will demonstrate how to define two different tooltip for symbol in the symbol palette and dropped node in the diagram canvas.
//Initialize the Diagram
let diagram: Diagram = new Diagram({
width: '100%', height: '500px',
connectors: connectors, nodes: nodes,
//event to change tooltip content while dragging symbols into Diagram
dragEnter: dragEnter,
});
diagram.appendTo('#diagram');
function dragEnter(args:IDragEnterEventArgs)
{
//enable tooltip connstraints for the dragged symbol
args.dragItem.constraints = NodeConstraints.Default | NodeConstraints.Tooltip;
//change the tooltip content of the dragged symbol
args.dragItem.tooltip.content='This is Diagram Tooltip';
}Palette interaction
Palette interaction notifies the element enter, leave, and dragging of the symbols into the diagram.
DragEnter
[DragEnter] IDragEnterEventArgs notifies, when the element enters into the diagram from symbol palette.
DragLeave
[DragLeave] IDragLeaveEventArgs notifies, when the element leaves from the diagram.
DragOver
[DragOver] IDragOverEventArgs notifies, when an element is dragged over another diagram element.
NOTE
The diagram provides support to cancel the drag and drop operation from the symbol palette to the diagram when the ESC key is pressed.