TreeNodeCollection::AddAt Method
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 nullptr. |
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.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Note