Assembly: PresentationFramework (in PresentationFramework.dll)
- Type: System.IServiceProvider
An object that can provide services for the markup extension. In this implementation, this parameter can be null.
RelativeSource is simultaneously a markup extension implementation and a data object. When the extension returns itself, the relevant information is contained in the data. The main purpose of the markup extension is to allow a variable-argument constructor syntax in attribute form so that the FindAncestor mode can be defined inline, with the two extra arguments for ancestor type and level that the other modes do not require.
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.