System.Web.UI.WebControls Namespace   TreeNode Class

.NET Framework version 2.0

Returns the level at which a TreeNode object is displayed.

This property can only be used programmatically; it cannot be set when declaring the control.

The property is read only with no default value.

Use the Depth property to determine the level at which a TreeNode is displayed in a TreeView control.

The depth represents the number of hierarchy levels between the current node and the root node. For example, a root node has a depth of 0. A subnode of a root node has a depth of 1, and so on.

The following example demonstrates how to use the Depth property to determine the level at which a TreeNode is displayed in a TreeView, and take appropriate action based on the depth.

void PopulateNode ( Object source, TreeNodeEventArgs e ) {
   switch ( e.Node.Depth ) {
      case 0 :
         getCategories ( e.Node );
         break;
      case 1 :
         getSubCategories ( e.Node );
         break;
   }
}

Sub PopulateNode ( source As Object, e As TreeNodeEventArgs )
   Select Case e.Node.Depth
      Case 0
         getCategories(e.Node)

      Case 1
         getSubCategories(e.Node)

   End Select
End Sub

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TreeNode Members