Drag and drop in EJ2 JavaScript Gantt control
4 May 20237 minutes to read
In Gantt, it is possible to drag a record from another component and drop it in Gantt chart with updating the Gantt record. Here, dragging an item from TreeView
component to Gantt and that item is updated as a resource for the Gantt record, we can achieve this, by using nodeDragStop
event of TreeView
control.
ej.gantt.Gantt.Inject(ej.gantt.Edit);
var treeObj = new ej.navigations.TreeView({
fields: { dataSource: editingResources, id: 'resourceId', text: 'resourceName' },
allowDragAndDrop: true,
height: "200px",
nodeDragStop: function (args) {
var chartEle = ej.base.closest(args.target, '.e-chart-row');
var gridEle = ej.base.closest(args.target, '.e-row');
if(gridEle) {
var index = ganttChart.treeGrid.getRows().indexOf(gridEle);
ganttChart.selectRow(index);
}
if (chartEle) {
var index = chartEle.ariaRowIndex;
ganttChart.selectRow(Number(index));
}
var record= args.draggedNodeData;
var selectedData = ganttChart.flatData[ganttChart.selectedRowIndex];
var selectedDataResource = selectedData.taskData.resources;
var resources = [];
if (selectedDataResource) {
for (var i = 0; i < selectedDataResource.length; i++) {
resources.push(selectedDataResource[i].resourceId);
}
}
resources.push(parseInt(record.id));
if (chartEle || gridEle) {
var data = {
TaskID: selectedData.taskData.TaskID,
resources: resources
};
ganttChart.updateRecordByID(data);
var elements = document.querySelectorAll('.e-drag-item');
while (elements.length > 0 && elements[0].parentNode) {
elements[0].parentNode.removeChild(elements[0]);
}
}
}
});
var ganttChart = new ej.gantt.Gantt({
dataSource: editingData,
resources: editingResources,
height:'450px',
taskFields: {
id: 'TaskID',
name: 'TaskName',
startDate: 'StartDate',
duration: 'Duration',
progress: 'Progress',
child: 'subtasks',
dependency: 'Predecessor',
resourceInfo: 'resources'
},
editSettings: {
allowEditing: true
},
resourceFields: {
id: 'resourceId',
name: 'resourceName'
},
splitterSettings:{
position: "30%"
},
labelSettings: {
rightLabel: 'resources'
}
});
ganttChart.appendTo('#Gantt');
treeObj.appendTo('#TreeView');
<!DOCTYPE html><html lang="en"><head>
<title>EJ2 Gantt</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Typescript Gantt Controls">
<meta name="author" content="Syncfusion">
<link href="index.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/material.css" rel="stylesheet" type="text/css">
<script src="es5-datasource.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/23.1.36/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container">
<b><label>Gantt</label></b>
<div id="Gantt"></div>
<b><label>List</label></b>
<div id="TreeView"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
The following screenshot shows dropping record from another component in to Gantt, and Rose Fuller is added as resource for the task Develop floor plan estimation.