//private void Drag(DragCommandParameter parameter)
//{
// if (Picture != null)
// {
// IDataObject dataObject = DragDropBehavior.CreateDataObject(Picture);
// DragDropEffects effect = DragDrop.DoDragDrop(parameter.DragSource, dataObject, DragDropEffects.Move);
// if ((effect & DragDropEffects.Move) != 0)
// Picture = null;
// }
//}
private bool CanDrop(DropCommandParameter parameter)
{
// Extract data.
var draggedPicture = DragDropBehavior.GetData(parameter.DragEventArgs.Data) as PictureViewModel;
// To enable Drop the preview area needs to be empty and the dragged data needs to be a
// picture.
if (Picture == null && draggedPicture != null)
{
parameter.Data = draggedPicture;
parameter.DragEventArgs.Effects = DragDropEffects.Move;
return(true);
}
return(false);
}
private void Drop(DropCommandParameter parameter)
{
Picture = (PictureViewModel)parameter.Data;
}
