'宣言 Public Overloads Function DragStart( _ ByVal dragElements() As UIElement, _ ByVal mouseOffset As Point, _ ByVal dragIndicatorOpacity As Double, _ ByVal dragDropIndicatorSettings As DragDropIndicatorSettings _ ) As Boolean
public bool DragStart( UIElement[] dragElements, Point mouseOffset, double dragIndicatorOpacity, DragDropIndicatorSettings dragDropIndicatorSettings )