Inserts an item into the list at the specified index.
virtual void Insert(
The zero-based index at which value should be inserted.
The Object to insert. The value can be nullptr.
index is less than zero or greater than Count.
The list is read-only or has a fixed size.
This method raises the ListChanged event.
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.