Gets the data type that this collection contains.
Assembly: System.Design (in System.Design.dll)
You can retrieve the data type of the items of the collection from the CollectionItemType property, which is faster than this method.
This method does not need to be called by users, except in derived classes where this method has been overridden and implemented.
The default implementation of this method returns the data type of the Item property of the collection, if it exists.Notes to Implementers
Developers can choose to override this method to support collections that do not follow the typical and supported collection model, or when performance is critical, and reflection-based type resolution is too slow.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
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.