private void DragSource_PreviewMouseMove(object sender, MouseEventArgs e)
{
logger.Trace("Entered DragSource_PreviewMouseMove()");
if (DraggedData == null ||
!DynamicFormUtilities.IsMovementBigEnough(InitialMousePosition,
e.GetPosition(TopWindow)))
{
return;
}
var data = new DataObject(Format.Name, DraggedData);
var previousAllowDrop = TopWindow.AllowDrop;
TopWindow.AllowDrop = true;
TopWindow.DragEnter += TopWindow_DragEnter;
TopWindow.DragOver += TopWindow_DragOver;
TopWindow.DragLeave += TopWindow_DragLeave;
var effects = DragDrop.DoDragDrop(sender as DependencyObject, data,
DragDropEffects.Move);
TopWindow.AllowDrop = previousAllowDrop;
TopWindow.DragEnter -= TopWindow_DragEnter;
TopWindow.DragOver -= TopWindow_DragOver;
TopWindow.DragLeave -= TopWindow_DragLeave;
DraggedData = null;
}
