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How to get the checked node details in the server-side event?

Platform: ASP.NET Web Forms |
Control: TreeView |
Published Date: February 16, 2015 |
Last Revised Date: May 8, 2019 |
Product Version:


Retrieving checked node details from the TreeView in the server-side event.


In order to get the node details in the server-side, you can use CurrentCheckedNodes property that is available in the TreeView event argument object. This carries the checked node details to the server side.


CurrentCheckedNodes is the list type that carries the ID and Text of the checked nodes. You can get the values as given in the following code example.



    <ej:TreeView ID="TreeView1" runat="server" ShowCheckbox="true" OnNodeChecked="sampleTreeview_NodeChecked">
            <ej:TreeViewNode Id="node1" Text="Parent1">
                    <ej:TreeViewNode Id="subnode1" Text="Child1"></ej:TreeViewNode>
                    <ej:TreeViewNode Id="subnode2" Text="Child2"></ej:TreeViewNode>
                    <ej:TreeViewNode Id="subnode3" Text="Child3"></ej:TreeViewNode>
            <ej:TreeViewNode Id="node2" Text="Parent2"></ej:TreeViewNode>
            <ej:TreeViewNode Id="node3" Text=" Parent 3"></ej:TreeViewNode>
<asp:Label ID="Label1" Text="Checked Nodes are:" runat="server"></asp:Label>
<asp:label id="Label1" runat="server"></asp:label>


protected void sampleTreeview_NodeChecked(object sender, Syncfusion.JavaScript.Web.TreeViewEventArgs e)
            foreach (NodeData data in e.CurrentCheckedNodes)
                lblChecked.Text+= data.Id + "-" + data.Text+">";            


The following screenshot displays the TreeView with checked node details.Checked nodes

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