/// <summary>
/// Undoes the last command
/// </summary>
public void Undo()
{
RunCommandTillEndWith(() =>
{
CurrentTransaction = this.UndoStack.Pop();
if (this.CurrentTransaction.ExecutionConfiguration != null && this.CurrentTransaction.ExecutionConfiguration.RunInBackground)
{
UnExecuteInSpawnedThread(CurrentTransaction);
}
else
{
CurrentTransaction.UnExecute();
}
RedoStack.Push(CurrentTransaction);
if (autocommit)
{
this.CommitTransaction();
}
RaiseCanUndoRedoChanged(this, EventArgs.Empty);
});
}
/// <summary>
/// Performs a rollback of the topmost transaction from the stack
/// </summary>
public void RollBackTransaction()
{
this.unboundedTransactionRunning = false;
if (this.CurrentTransaction != null)
{
if (this.UndoStack.Count > 0)
{
this.UndoStack.Pop();
}
else
{
// this should not happen!
}
CurrentTransaction.UnExecute();
}
}