Home / Community & Support / Developer Productivity Tools Forums / ASP.NET AJAX > TreeView > RadTreeView and ContextMenuItemClick

• Divyesh

  Posted on Jan 27, 2012 (permalink)

  Hi There,
  
  ContextMenuItemClick server side event returns e.Node as null all the time. Certainly I am missing something here but not sure what,
  
  The code is as below.
  
  

  <

   

  telerik:RadTreeView      ID="CategoryTree"

   

   

                                          Runat="server"

   

   

                                          Skin="Windows7"

   

   

                                          DataSourceID="SqlDataSource1"

   

   

                                          CheckBoxes="True"

   

   

                                          MultipleSelect="True"

   

   

                                          DataFieldID="CategoryId"

   

   

                                          DataFieldParentID="ParentID"

   

   

                                          DataTextField="CategoryName"

   

   

                                          DataValueField="Category"

   

   

                                          OnNodeDataBound="CategoryTree_OnNodeDataBound"

   

   

                                          OnContextMenuItemClick="CategoryTree_ContextMenuItemClick"

   

   

                                          OnClientContextMenuShowing="onClientContextMenuShowing"

   

   

                                          OnClientContextMenuItemClicking="onClientContextMenuItemClicking"

   

   

                                          TriStateCheckBoxes="False" 
                                          AllowNodeEditing="True">

   

   

      <ContextMenus>

   

   

          <telerik:RadTreeViewContextMenu ID="MyContextMenu" runat="server" Skin="Windows7" >

   

   

          <Items>

   

   

                  <telerik:RadMenuItem runat="server" ImageUrl="~/Images/add.gif" Text="Add new category" Value="New">

   

   

                  </telerik:RadMenuItem>

   

   

                  <telerik:RadMenuItem runat="server" ImageUrl="~/Images/edit.gif" Text="Edit category" Value="Edit">

   

   

                  </telerik:RadMenuItem>

   

   

                  <telerik:RadMenuItem runat="server" ImageUrl="~/Images/delete.gif" Text="Delete category" Value="Delete">

   

   

                  </telerik:RadMenuItem>

   

   

          </Items>

   

   

          </telerik:RadTreeViewContextMenu>

   

   

      </ContextMenus>

   

   

      <DataBindings>

   

   

          <telerik:RadTreeNodeBinding Expanded="True" ContextMenuID="MyContextMenu"/>

   

   

      </DataBindings>

   

   

  </telerik:RadTreeView>
  
  

   

   

  protected void CategoryTree_ContextMenuItemClick(object sender, RadTreeViewContextMenuEventArgs e)

   

  {

   

      if (e.Node != null)

   

      {

   

          //check for menuitem text
      }
      else
      {
          return;
      }
  }
  
  e.Node is always null, Could someone please advise me why am I getting e.Node as null everytime inside the ContextMenuItemClick event.
  
  

  Reply

• Princy MVP

  Posted on Jan 30, 2012 (permalink)

  Hello,
  
  I have try to reproduce the same but no avail. Here is the sample code that I have tried and that worked as expected on my end.
  ASPX:
  

  <telerik:RadTreeView ID="treeview1" runat="server" DataSourceID="SqlDataSource1" DataFieldID="EmployeeID" DataTextField="FirstName"  DataValueField="LastName" oncontextmenuitemclick="treeview1_ContextMenuItemClick">

   <ContextMenus>

    <telerik:RadTreeViewContextMenu ID="contextmenu1" runat="server">

     <Items>

       <telerik:RadMenuItem Text="Add" Value="Add">

       </telerik:RadMenuItem>

       <telerik:RadMenuItem Text="Delete" Value="Delete">

       </telerik:RadMenuItem>

     </Items>

   </telerik:RadTreeViewContextMenu>

   </ContextMenus>

  </telerik:RadTreeView>

  C#:
  

  protected void treeview1_ContextMenuItemClick(object sender, Telerik.Web.UI.RadTreeViewContextMenuEventArgs e)

    {

        if (e.Node != null)

        {

            string s = e.Node.Text;

            string t = e.MenuItem.Text;

        }

    }

  
  Thanks,
  Princy.

  Reply

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