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How to expand/collapse TreeGrid records at particular level

Platform: ASP.NET Web Forms |
Control: TreeGrid

In TreeGrid, we can expand or collapse particular level parent tasks using “expandAtLevel” and “collapseAtLevel” public methods. The following code example explains how to expand or collapse particular level parent items in TreeGrid.

    <button id="expand">Expand at level 1</button>
    <button id="collapse">Collape at level 1</button> 
    <form id="form1" runat="server" >
    <script type="text/javascript">      
       $("#expand").click(function () {
           var obj = $("#TreeGridContainer").data("ejTreeGrid");
       $("#collapse").click(function () {
           var obj = $("#TreeGridContainer").data("ejTreeGrid");

Here we have collapsed the 1st level parent records and expanded the 1st level parent on the button click action.


A simple sample to expand and collapse at particular level in TreeGrid.




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