如何用QT或者C++复写下述代码?
怎么复写 page1.dataGrid1.ItemsSource = dt.DefaultView;这一语句?
private void bt_redo_Click(object sender, RoutedEventArgs e)
{
//把当前状态放入撤销栈
DataTable indt = dt.Copy();
undo_stack.Push(indt);
//当前dt设置为重做栈栈顶
dt = redo_stack.Pop();
//dataGrid源设置为dt
page1.dataGrid1.ItemsSource = dt.DefaultView;
//可以撤销,判断可不可以重做
undo.IsEnabled = true;
if (redo_stack.Count == 0)
redo.IsEnabled = false;
}
```