/// <summary>
/// Drops the data on the target with the given drop effect. <c>additionalDropInfo</c> may contain
/// additonal data that can be used during the drop operation, depending on the type of target UI control
/// </summary>
public void DoDrop(IDataObject data, DragDropEffect effect, AdditionalDropInfo additionalDropInfo)
{
DragDropItemHandlerBase ItemHandler = this.GetItemHandler(data);
if (ItemHandler != null)
{
ItemHandler.DoDrop(data, effect, additionalDropInfo);
}
else
{
throw new InvalidOperationException("drag drop not requested, but doDrop was called");
}
}
/// <summary>
/// Gets the default effect that shall be used when no modifier key is pressed (but only if the
/// source supports the effect)
/// </summary>
public DragDropEffect GetDefaultEffect(IDataObject data)
{
DragDropItemHandlerBase ItemHandler = this.GetItemHandler(data);
if (ItemHandler != null)
{
return(ItemHandler.GetDefaultEffect(data));
}
else
{
return(DragDropEffect.None);
}
}