How to readonly or disabled Treeview Parent node while loading the page in ASP.NET

Question

I'm using Treeview control in asp.net.

I just want to make the parent node as readonly or disabled.

Remaining child node as it is. Like child node is navigating the URL. (we don't want to touch anything in child node).

how to do this,,?

<asp:TreeView ID="TreeView1" runat="server" ExpandDepth="1" >  
   <Nodes>  
            <asp:TreeNode Text="EmpDetails" Value="Emp. Details">  
  
              </asp:TreeNode>  
  </Nodes>  
</asp:TreeView>  

Answer 1

Hi @Gani_tpt ,
You could use "TreeNodeSelectAction" property. You need to foreach all nodes to find the parent node and then you could set the SelectAction "None".

  TreeView tv = (TreeView)FindControl("TreeView1");  
  tv.Nodes[0].SelectAction = TreeNodeSelectAction.None;  

Best regards,
Yijing Sun

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Answer 2

Your question is not clear. The TreeView is a navigation server control. I think you are actually asking how to stop the TreeView control from posting back?

<asp:TreeView ID="TreeView1" runat="server" ExpandDepth="1">  
    <Nodes>  
        <asp:TreeNode Text="No PostBack" Value="No.Postback" SelectAction="None"></asp:TreeNode>  
        <asp:TreeNode Text="PostBack" Value="PostBack"></asp:TreeNode>  
    </Nodes>  
</asp:TreeView>  

GaniTPT, you have a lot of post on these forums and I get the feeling you are not making an effort to learn the technology. It seems like you are copying and pasting code without understanding how the code, or server control in this case, works.

TreeView Class
TreeNode Class
TreeNode.SelectAction Property