Question

我使用下面的代码使用MVVM绑定我的listBox SelectedItem。但是，该项目已被选中，但它不会滚动到所选项目。

public int CollectedItem
        {
            get { return _collectedItem; }
            set
            {
                if (value == _collectedItem)
                    return;

                _collectedItem = value;
                OnPropertyChanged("CollectedItem");
                SelectedItem = ChapterContent.Find(x => x.ArabicText.AyaID == _collectedItem);
            }
        }
        public ArabicTextWithTranslation SelectedItem
        {
            get { return _selectedItem; }
            set
            {
                if (value != _selectedItem)
                    _selectedItem = value;
                OnPropertyChanged("SelectedItem");
            }

        }

XAML Page

<ListBox x:Name="lsbReadingChapter" ItemsSource="{Binding ChapterContent}" SelectedItem="{Binding SelectedItem}"

页面加载中的代码

void MainPage_Loaded(object sender, RoutedEventArgs e)
        {
            (DataContext as MainChapaterViewModel).CollectedItem = 10;
            this.lsbReadingChapter.SelectedIndex = lsbReadingChapter.Items.Count - 1;
            this.lsbReadingChapter.UpdateLayout();
            this.lsbReadingChapter.ScrollIntoView(lsbReadingChapter.SelectedIndex);

            this.lsbReadingChapter.SelectedIndex = 10;
            this.lsbReadingChapter.UpdateLayout();
            this.lsbReadingChapter.ScrollIntoView(10);

            //scrollIntoSelectedItem(lsbReadingChapter.SelectedIndex);
        }

非常烦人，当我调试代码时，该事件被选中，但它不会滚动到所选的索引或项目。

谢谢！

Answer 1

好像你ScrollIntoView：

出了问题

How to Scroll into selected item in listbox in windows phone 7

参考：Scroll to bottom of listbox wp7

ListBox.SelectedItem工作但不滚动

1 个答案: