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Cell

Displaying the HTML content

The HTML tags can be displayed in the TreeGrid header and content by enabling the DisableHtmlEncode property.

index.razor
treegriddata.cs
@using TreeGridComponent.Data
@using Syncfusion.EJ2.Blazor.TreeGrid;

<EjsTreeGrid IdMapping="TaskId" DataSource="@TreeGridData" ParentIdMapping="ParentId" TreeColumnIndex="1">
    <TreeGridColumns>
        <TreeGridColumn Field="TaskId" HeaderText="<span> Task ID </span>" DisableHtmlEncode="true" Width="80" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="TaskName" HeaderText="<span> Task Name </span>" DisableHtmlEncode="true" Width="160"></TreeGridColumn>
        <TreeGridColumn Field="Duration" HeaderText="<span> Duration </span>" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Progress" HeaderText="<span> Progress </span>" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
    </TreeGridColumns>
</EjsTreeGrid>

@code{
    public List<TreeData.BusinessObject> TreeGridData { get; set; }
    protected override void OnInitialized()
    {
        this.TreeGridData = TreeData.GetSelfDataSource().ToList();
    }
}
namespace TreeGridComponent.Data {

public class TreeData
    {
        public class BusinessObject
        {
            public int TaskId { get; set;}
            public string TaskName { get; set;}
            public int? Duration { get; set;}
            public int? Progress { get; set;}
            public int? ParentId { get; set;}
        }

        public static List<BusinessObject> GetSelfDataSource()
        {
            List<BusinessObject> BusinessObjectCollection = new List<BusinessObject>();
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 1,TaskName = "Parent Task 1",StartDate = new DateTime(2017, 10, 23),Duration = 10,Progress = 70,ParentId = null });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 2,TaskName = "Child task 1",StartDate = new DateTime(2017, 10, 23),Progress = 80,ParentId = 1 });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 3,TaskName = "Child Task 2",StartDate = new DateTime(2017, 10, 24),Duration = 5,Progress = 65,ParentId = 2 });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 4,TaskName = "Child task 3",StartDate = new DateTime(2017, 10, 25),Duration = 6,Progress = 77,ParentId = 3 });
            return BusinessObjectCollection;
        }
    }
}

The following output is displayed as a result of the above code example.

Display HTML Content

Customize cell styles

The appearance of cells can be customized by using the QueryCellInfo event. The QueryCellInfo event triggers for every cell. In that event handler, you can get QueryCellInfoEventArgs that contains the details of the cell.

index.razor
treegriddata.cs
@using TreeGridComponent.Data;
@using Syncfusion.EJ2.Blazor.TreeGrid;

<EjsTreeGrid DataSource="@TreeGridData" IdMapping="TaskId" ParentIdMapping="ParentId" TreeColumnIndex="1">
    <TreeGridEvents QuerycellInfo="querycellinfo" TValue="TreeData"></TreeGridEvents>
    <TreeGridColumns>
        <TreeGridColumn Field="TaskId" HeaderText="Task ID" Width="90" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="TaskName" HeaderText="Task Name" Width="100"></TreeGridColumn>
        <TreeGridColumn Field="Duration" HeaderText="Duration" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Progress" HeaderText="Progress" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Priority" HeaderText="Priority" Width="100"></TreeGridColumn>
    </TreeGridColumns>
</EjsTreeGrid>

@code{
    public List<TreeData> TreeGridData { get; set; }

    protected override void OnInitialized()
    {
        this.TreeGridData = TreeData.GetSelfDataSource().ToList();
    }

    private void querycellinfo(QueryCellInfoEventArgs<TreeData> Args)
    {
        if (Args.Column.Field == "Progress" && Args.Data.Progress > 70 && Args.Data.Progress <= 100)
        {
            Args.Cell.SetAttribute("style", "background-color:#336c12;color:white;");
        }
        else if (Args.Column.Field == "Progress" && Args.Data.Progress > 20)
        {
            Args.Cell.SetAttribute("style", "background-color:#7b2b1d;color:white;");
        }
    }
}
namespace TreeGridComponent.Data {

public class TreeData
    {
            public int TaskId { get; set;}
            public string TaskName { get; set;}
            public DateTime? StartDate { get; set;}
            public int? Duration { get; set;}
            public int? Progress { get; set;}
            public string Priority { get; set;}
            public int? ParentId { get; set;}
       
        public static List<TreeData> GetSelfDataSource()
        {
            List<TreeData> TreeDataCollection = new List<TreeData>();
            TreeDataCollection.Add(new TreeData() { TaskId = 1,TaskName = "Parent Task 1",Duration = 10,Progress = 70,Priority = "Critical",ParentId = null });
            TreeDataCollection.Add(new TreeData() { TaskId = 2,TaskName = "Child task 1",Progress = 80,Priority = "Low",ParentId = 1 });
            TreeDataCollection.Add(new TreeData() { TaskId = 3,TaskName = "Child Task 2",Duration = 5,Progress = 65,Priority = "Critical",ParentId = 2 });
            TreeDataCollection.Add(new TreeData() { TaskId = 4,TaskName = "Child task 3",Duration = 6,Priority = "High",Progress = 77,ParentId = 3 });
            TreeDataCollection.Add(new TreeData() { TaskId = 5,TaskName = "Parent Task 2",Duration = 10,Progress = 70,Priority = "Critical",ParentId = null});
            TreeDataCollection.Add(new TreeData() { TaskId = 6,TaskName = "Child task 1",Duration = 4,Progress = 80,Priority = "Critical",ParentId = 5});
            TreeDataCollection.Add(new TreeData() { TaskId = 7,TaskName = "Child Task 2",Duration = 5,Progress = 65,Priority = "Low",ParentId = 5});
            TreeDataCollection.Add(new TreeData() { TaskId = 8,TaskName = "Child task 3",Duration = 6,Progress = 77,Priority = "High",ParentId = 5});
            TreeDataCollection.Add(new TreeData() { TaskId = 9,TaskName = "Child task 4",Duration = 6,Progress = 77,Priority = "Low",ParentId = 5});
            return TreeDataCollection;
        }
    }
}

The following output is displayed as a result of the above code example.

Customize cell styles

Auto wrap

The auto wrap allows the cell content of the treegrid to wrap to the next line when it exceeds the boundary of the cell width. The Cell Content wrapping works based on the position of white space between words. To enable auto wrap, set the AllowTextWrap property to true.

Note: When a column width is not specified, then auto wrap of columns will be adjusted with respect to the treegrid’s width.

index.razor
treegriddata.cs
@using TreeGridComponent.Data;
@using Syncfusion.EJ2.Blazor.TreeGrid;

<EjsTreeGrid DataSource="@TreeGridData" IdMapping="TaskId" ParentIdMapping="ParentId" TreeColumnIndex="1" AllowTextWrap="true">
    <TreeGridColumns>
        <TreeGridColumn Field="TaskId" HeaderText="Task ID" Width="80" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="TaskName" HeaderText="Task Name" Width="100"></TreeGridColumn>
        <TreeGridColumn Field="StartDate" HeaderText="Start Date" Format="yMd" Type="Syncfusion.EJ2.Blazor.Grids.ColumnType.Date" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Duration" HeaderText="Duration" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Progress" HeaderText="Progress" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Priority" HeaderText="Priority" Width="100"></TreeGridColumn>
    </TreeGridColumns>
</EjsTreeGrid>

@code{
    public List<TreeData.BusinessObject> TreeGridData { get; set; }
    protected override void OnInitialized()
    {
        this.TreeGridData = TreeData.GetSelfDataSource().ToList();
    }
}
namespace TreeGridComponent.Data {

public class TreeData
    {
        public class BusinessObject
        {
            public int TaskId { get; set;}
            public string TaskName { get; set;}
            public DateTime? StartDate { get; set;}
            public int? Duration { get; set;}
            public int? Progress { get; set;}
            public string Priority { get; set;}
            public int? ParentId { get; set;}
        }

        public static List<BusinessObject> GetSelfDataSource()
        {
            List<BusinessObject> BusinessObjectCollection = new List<BusinessObject>();
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 1,TaskName = "Parent Task 1",StartDate = new DateTime(2017, 10, 23),Duration = 10,Progress = 70,Priority = "Critical",ParentId = null });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 2,TaskName = "Child task 1",StartDate = new DateTime(2017, 10, 23),Progress = 80,Priority = "Low",ParentId = 1 });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 3,TaskName = "Child Task 2",StartDate = new DateTime(2017, 10, 24),Duration = 5,Progress = 65,Priority = "Critical",ParentId = 2 });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 4,TaskName = "Child task 3",StartDate = new DateTime(2017, 10, 25),Duration = 6,Priority = "High",Progress = 77,ParentId = 3 });
            return BusinessObjectCollection;
        }
    }
}

The following output is displayed as a result of the above code example.

Auto Wrap

Grid lines

The GridLines have option to display cell border and it can be defined by the GridLines property.

The available modes of grid lines are:

Modes Actions
Both Displays both the horizontal and vertical grid lines.
None No grid lines are displayed.
Horizontal Displays the horizontal grid lines only.
Vertical Displays the vertical grid lines only.
Default Displays grid lines based on the theme.
index.razor
treegriddata.cs
@using TreeGridComponent.Data
@using Syncfusion.EJ2.Blazor.TreeGrid;

<EjsTreeGrid IdMapping="TaskId" ParentIdMapping="ParentId" DataSource="@TreeGridData"  TreeColumnIndex="1" GridLines="Syncfusion.EJ2.Blazor.Grids.GridLine.None">
    <TreeGridColumns>
        <TreeGridColumn Field="TaskId" HeaderText="Task ID" Width="80" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="TaskName" HeaderText="Task Name" Width="100"></TreeGridColumn>
        <TreeGridColumn Field="StartDate" HeaderText="Start Date" Format="yMd" Type="Syncfusion.EJ2.Blazor.Grids.ColumnType.Date" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Duration" HeaderText="Duration" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Progress" HeaderText="Progress" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Priority" HeaderText="Priority" Width="100"></TreeGridColumn>
    </TreeGridColumns>
</EjsTreeGrid>

@code{
    public List<TreeData.BusinessObject> TreeGridData { get; set; }
    protected override void OnInitialized()
    {
        this.TreeGridData = TreeData.GetSelfDataSource().ToList();
    }
}
namespace TreeGridComponent.Data {

public class TreeData
    {
        public class BusinessObject
        {
            public int TaskId { get; set;}
            public string TaskName { get; set;}
            public DateTime? StartDate { get; set;}
            public int? Duration { get; set;}
            public int? Progress { get; set;}
            public string Priority { get; set;}
            public int? ParentId { get; set;}
        }

        public static List<BusinessObject> GetSelfDataSource()
        {
            List<BusinessObject> BusinessObjectCollection = new List<BusinessObject>();
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 1,TaskName = "Parent Task 1",StartDate = new DateTime(2017, 10, 23),Duration = 10,Progress = 70,Priority = "Critical",ParentId = null });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 2,TaskName = "Child task 1",StartDate = new DateTime(2017, 10, 23),Progress = 80,Priority = "Low",ParentId = 1 });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 3,TaskName = "Child Task 2",StartDate = new DateTime(2017, 10, 24),Duration = 5,Progress = 65,Priority = "Critical",ParentId = 2 });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 4,TaskName = "Child task 3",StartDate = new DateTime(2017, 10, 25),Duration = 6,Priority = "High",Progress = 77,ParentId = 3 });
            return BusinessObjectCollection;
        }
    }
}

The following output is displayed as a result of the above code example.

Grid Lines

By default, the treegrid renders with Default mode.

Clip Mode

The clip mode provides options to display its overflow cell content and it can be defined by the ClipMode property.

There are three types of ClipMode. They are:

  • Clip: Truncates the cell content when it overflows its area.
  • Ellipsis: Displays ellipsis when the cell content overflows its area.
  • EllipsisWithTooltip: Displays ellipsis when the cell content overflows its area, also it will display the tooltip while hover on ellipsis is applied.
index.razor
treegriddata.cs
@using TreeGridComponent.Data
@using Syncfusion.EJ2.Blazor.TreeGrid;

<EjsTreeGrid IdMapping="TaskId" ParentIdMapping="ParentId" DataSource="@TreeGridData"  TreeColumnIndex="1">
    <TreeGridColumns>
        <TreeGridColumn Field="TaskId" HeaderText="Task ID" Width="80" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="TaskName" HeaderText="Task Name" Width="100" ClipMode="Syncfusion.EJ2.Blazor.Grids.ClipMode.EllipsisWithTooltip"></TreeGridColumn>
        <TreeGridColumn Field="StartDate" HeaderText="Start Date"  ClipMode="Syncfusion.EJ2.Blazor.Grids.ClipMode.Ellipsis" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Duration" HeaderText="Duration" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Progress" HeaderText="Progress" Width="100" TextAlign="Syncfusion.EJ2.Blazor.Grids.TextAlign.Right"></TreeGridColumn>
        <TreeGridColumn Field="Priority" HeaderText="Priority" Width="60" ClipMode="Syncfusion.EJ2.Blazor.Grids.ClipMode.Clip"></TreeGridColumn>
    </TreeGridColumns>
</EjsTreeGrid>

@code{
    public List<TreeData.BusinessObject> TreeGridData { get; set; }
    protected override void OnInitialized()
    {
        this.TreeGridData = TreeData.GetSelfDataSource().ToList();
    }
}
namespace TreeGridComponent.Data {

public class TreeData
    {
        public class BusinessObject
        {
            public int TaskId { get; set;}
            public string TaskName { get; set;}
            public DateTime? StartDate { get; set;}
            public int? Duration { get; set;}
            public int? Progress { get; set;}
            public string Priority { get; set;}
            public int? ParentId { get; set;}
        }

        public static List<BusinessObject> GetSelfDataSource()
        {
            List<BusinessObject> BusinessObjectCollection = new List<BusinessObject>();
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 1,TaskName = "Parent Task 1",StartDate = new DateTime(2017, 10, 23),Duration = 10,Progress = 70,Priority = "Critical",ParentId = null});
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 2,TaskName = "Child task 1",StartDate = new DateTime(2017, 10, 23),Progress = 80,Priority = "Low",ParentId = 1 });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 3,TaskName = "Child Task 2",StartDate = new DateTime(2017, 10, 24),Duration = 5,Progress = 65,Priority = "Critical",ParentId = 2 });
            BusinessObjectCollection.Add(new BusinessObject() { TaskId = 4,TaskName = "Child task 3",StartDate = new DateTime(2017, 10, 25),Duration = 6,Priority = "High",Progress = 77,ParentId = 3 });
            return BusinessObjectCollection;
        }
    }
}

The following output is displayed as a result of the above code example.

Clip Mode

By default, ClipMode value is Ellipsis.