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Add new row position while adding in JavaScript (ES5) Gantt control

22 Oct 2021 / 2 minutes to read

In Gantt, a new row can be added in one of the following positions: Top, Bottom, Above, Below and Child. This position can be specified through the newRowPostion property. We can make use of the toolbarClick event to create a context menu that specifies the position in which the new row is to be added when adding a record through toolbar click.

The following code snippets demonstrate how to achieve this.

Source
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index.js
index.html
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var clickHandler = function(args){
	if (args.item.id === 'GanttExport_add') {
			 var contextMenuObj = document.getElementById("contextmenu").ej2_instances[0];
             contextMenuObj.open(60, 20);
		}
};
ej.gantt.Gantt.Inject(ej.gantt.Toolbar);
var menuItems = [
    {
        text: 'Bottom'
    },
    {
        text: 'Above'
    },
    {
        text: 'Below'
    },
    {
        text: 'Child'
    },
    {
        text: 'Top'
    }];
var menuOptions = {
        items: menuItems,
        select: select
    };

var menuObj = new ej.navigations.ContextMenu(menuOptions, '#contextmenu');

function select(args: any) {
  let gantt: any = (document.getElementsByClassName('e-gantt')[0] as any).ej2_instances[0];
  if (args.item.text === "Bottom") {
    gantt.editSettings.newRowPosition = "Bottom";
    gantt.openAddDialog();
  } else if (args.item.text === "Above") {
    if (gantt.selectedRowIndex == -1) {
      alert("Please select any row");
    } else {
      gantt.editSettings.newRowPosition = "Above";
      gantt.openAddDialog();
    }
  } else if (args.item.text === "Below") {
    if (gantt.selectedRowIndex == -1) {
      alert("Please select any row");
    } else {
      gantt.editSettings.newRowPosition = "Below";
      gantt.openAddDialog();
    }

  } else if (args.item.text === "Child") {
    if (gantt.selectedRowIndex == -1) {
      alert("Please select any row");
    } else {
      gantt.editSettings.newRowPosition = "Child";
      gantt.openAddDialog();
    }
  } else if (args.item.text === "Top") {
    gantt.editSettings.newRowPosition = "Top";
    gantt.openAddDialog();
  }
}

var ganttChart = new ej.gantt.Gantt({
        dataSource: GanttData,
		height:'450px',
		allowSelection: true,
		taskFields: {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
			duration: 'Duration',
            progress: 'Progress',
			child: 'subtasks'
        },
		editSettings:{
			allowAdding:true
		},
        toolbar: ['Edit', { text: 'Add', tooltipText: 'Add', id: 'Add' }],
        toolbarClick: clickHandler,

});
ganttChart.appendTo('#Gantt');
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<!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="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.js" type="text/javascript"></script>
</head>

<body>
    
    
    <div id="container">
        <div id="Gantt"></div>
        <ul id="contextmenu"></ul>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>