ToolBar.ToolBarButtonCollection.Item Property (Int32)
Gets or sets the toolbar button at the specified indexed location in the toolbar button collection.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The following code example replaces the last toolbar button on a toolbar. This code requires that a ToolBar and at least one ToolBarButton have been created. The example gets the number of buttons on the toolbar and replaces the last button with a newly created one. The index value of the toolbar button being replaced is set to the Count property, minus one, since the ToolBarButton collection is a zero-based index.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.