Inserts an element into the Collection<T> at the specified index.
Assembly: mscorlib (in mscorlib.dll)
Collection<T> accepts null as a valid value for reference types and allows duplicate elements.
This method is an O(n) operation, where n is Count.Notes to Inheritors
Derived classes can override InsertItem to change the behavior of this method.
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.