IsDragSourceIgnored helper method
IsDragSourceIgnored helper method

punker76/gong-wpf-dragdrop,JohnnyJoe/Johnny-s-repository,Haukinger/gong-wpf-dragdrop,JohnnyJoe/Johnny-s-repository,huoxudong125/gong-wpf-dragdrop,Livit/Mailbird.Gong.WPF.DragDrop,emsaks/gong-wpf-dragdrop,ruisebastiao/gong-wpf-dragdrop