Gets or sets a character index for the beginning of the current selection.
Assembly: PresentationFramework (in PresentationFramework.dll)
In cases where the specified selection length would cause the selection to end between a carriage return and a new-line character, the selection length is automatically increased by 1 so that the resulting selection spans the entire end-of-line marker.
Available since 3.0
Available since 2.0
Windows Phone Silverlight
Available since 7.0