New row position in EJ2 JavaScript Gantt control

23 Jun 20236 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.

var clickHandler = function(args){
	if(args.item.id === '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) {
  let gantt = (document.getElementsByClassName('e-gantt')[0]).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',
        parentID: 'ParentID'
      },
		editSettings:{
			allowAdding: true,
      allowEditing: true
		},
    toolbar: ['Edit', { text: 'Add', tooltipText: 'Add', id: 'Add' }],
    toolbarClick: clickHandler,

});
ganttChart.appendTo('#Gantt');
<!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/ej2/32.1.19/material.css" rel="stylesheet" type="text/css">
        <script src="https://cdn.syncfusion.com/ej2/32.1.19/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">
            <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>