问题
When I start a drag and drop using a right click in WPF it will fire the drop on any target with out waiting for the right mouse button to come up.
回答1:
To drag, the mouse needs to be captured, which can only be achieved when the left mouse button is down. See http://msdn.microsoft.com/en-us/library/system.windows.uielement.capturemouse(VS.95).aspx (for Silverlight, but I think it's similar).
来源：https://stackoverflow.com/questions/1060856/drag-and-drop-right-click-wpf