RelativeSource.ProvideValue Method (IServiceProvider)
Returns an object that should be set as the value on the target object's property for this markup extension. For RelativeSource, this is another RelativeSource, using the appropriate source for the specified mode.
Assembly: PresentationFramework (in PresentationFramework.dll)
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.
Available since 3.0
Available since 5.0