You can select the specific row in the Tree Grid based on a certain condition by using the selectRows
method in the dataBound
event of Tree Grid.
In the below demo, we have selected the Tree Grid rows only when Duration column value greater than 4.
ej.treegrid.TreeGrid.Inject(ej.treegrid.Page);
var selIndex = [];
var treeGrid = new ej.treegrid.TreeGrid({
dataSource: window.projectData,
idMapping: "TaskID",
parentIdMapping: "parentID",
treeColumnIndex: 1,
height: 269,
allowPaging: true,
selectionSettings: { type: "Multiple" },
dataBound: dataBound,
rowDataBound: rowDataBound,
columns: [
{ field: "TaskID", headerText: "Task ID", textAlign: "Right", width: 70 },
{ field: "TaskName", headerText: "Task Name", width: 150 },
{ field: "StartDate", headerText: "Start Date", textAlign: "Right", width: 90,
format: { skeleton: "yMd", type: "date" } },
{ field: "EndDate", headerText: "End Date", textAlign: "Right", width: 90,
format: { skeleton: "yMd", type: "date" } },
{ field: "Duration", headerText: "Duration", textAlign: "Right", width: 80 },
{ field: "Progress", headerText: "Progress", width: 80, textAlign: "Right" },
{ field: "Priority", headerText: "Priority", width: 90 }
]
});
treeGrid.appendTo("#TreeGrid");
function dataBound(args) {
if (this && selIndex.length) {
this.selectRows(selIndex);
selIndex = [];
}
}
function rowDataBound(args) {
if (args.data["Duration"] > 4) {
selIndex.push(parseInt(args.row.getAttribute("aria-rowindex"), 0));
}
}
#container {
visibility: hidden;
}
#loader {
color: #008cff;
font-family: 'Helvetica Neue','calibiri';
font-size: 14px;
height: 40px;
left: 45%;
position: absolute;
top: 45%;
width: 30%;
}
.disabletreegrid {
pointer-events: none;
opacity: 0.4;
}
.wrapper {
cursor: not-allowed;
}
<!DOCTYPE html><html lang="en"><head>
<title>EJ2 Grid</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Typescript Grid Control">
<meta name="author" content="Syncfusion">
<link href="index.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-base/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-grids/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-treegrid/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-buttons/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-popups/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-navigations/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-dropdowns/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-lists/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-inputs/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-calendars/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/20.4.38/ej2-splitbuttons/styles/material.css" rel="stylesheet">
<script src="https://cdn.syncfusion.com/ej2/20.4.38/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="TreeGrid"></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>
You can refer to our
JavaScript Tree Grid
feature tour page for its groundbreaking feature representations. You can also explore our JavaScript Tree Grid exampleJavaScript Tree Grid example
to knows how to present and manipulate data.