/// <summary>
/// Merges the UndoStack with given UndoRedoStack's UndoStack.
/// </summary>
/// <param name="urs">Foreign UndoRedoStack to add to top of UndoStack</param>
public void MergeURStack(UndoRedoStack urs)
{
if (urs == null)
{
throw new ArgumentNullException(nameof(urs));
}
UndoStack.AppendToTop(urs.UndoStack);
}
/// <summary>
/// Merges the UndoStack with given UndoRedoStack's UndoStack.
/// </summary>
/// <param name="urs">Foreign UndoRedoStack to add to top of UndoStack</param>
public void MergeURStack(UndoRedoStack urs)
{
UndoStack.AppendToTop(urs.UndoStack);
}