Provides class handling for the MouseLeftButtonDown event.
protected override void OnMouseLeftButtonDown(
The event data.
This implementation handles the MouseLeftButtonDown event by setting Handled to true. Also, this method gives the Thumb logical focus and mouse capture, and sets the IsDragging property to true. This implementation also raises the DragStarted event.
Windows 8.1, Windows Server 2012 R2, 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.