WPF中怎么用MVVM模式添加到Grid中滚动条ScrollViewer

[寒情小柒]

        Grid _grid;
        TreeView _treeViewOrg;
        ScrollViewer _sv;
        protected override void InitView()
        {
            _grid = View as Grid;
            _grid.RowDefinitions.Add(new RowDefinition() { Height = GridLength.Auto });
            _grid.ColumnDefinitions.Add(new ColumnDefinition());
            //这个是滚动条
            _sv = new ScrollViewer();

            _treeViewOrg = new TreeView();
            _treeViewOrg.Style = CommonThemeFactory.GetStyle(typeof(TreeView));
            _treeViewOrg.Margin = new Thickness(5);
            _treeViewOrg.HorizontalAlignment = HorizontalAlignment.Stretch;
            _grid.Children.Add(_treeViewOrg);
        }

要怎么把滚动条添加到Grid中？

[stherix]

你应该把ScrollViewer添加到Grid里,再把Treeview放到ScrollViewer上 其实你这种需求还不如直接在xaml里写

[exception92]

条目控件自带ScrollViewer。