Question

i want to know how to program the checkbox checked inside treeview, i want to write code when user checks checkbox inside the treeview in asp.net, i got the event known as TreeNodeCheckChange event, i wrote a response.write() message inside it, but when i check the checkbox, nothing happens, does the asp.net treeview supports handling the checkbox from code behind.

Thanks in advance.

Answer 1

Try setting SelectAction="Select" on the TreeNode element.

<asp:TreeView ID="TreeView1" runat="server" OnTreeNodeCheckChanged="TreeView1_TreeNodeCheckChanged">
    <Nodes>
        <asp:TreeNode ShowCheckBox="true" SelectAction="Select" />
    </Nodes>
</asp:TreeView>