TreeNodeCollection::AddAt Method (Int32, TreeNode^)
Inserts the specified TreeNode object in a TreeNodeCollection object at the specified index location.
Assembly: System.Web (in System.Web.dll)
Parameters
- index
-
Type:
System::Int32
The zero-based index location at which to insert the TreeNode object.
- child
-
Type:
System.Web.UI.WebControls::TreeNode^
The TreeNode object to add.
| Exception | Condition |
|---|---|
| ArgumentNullException | child is null. |
Use the AddAt method to insert the specified TreeNode object in the TreeNodeCollection at the specified zero-based index.
Note |
|---|
The TreeNodeCollection allows you to insert null references (Nothing in Visual Basic), as well as duplicate TreeNode objects. |
As an alternative, you can append a TreeNode object to the end of the TreeNodeCollection by using the Add method.
The following example demonstrates how to use the AddAt method to programmatically add a node to the TreeNodeCollection. Notice that the Nodes and ChildNodes properties each return a TreeNodeCollection object.
Available since 2.0
