Question

我有一个Listview，其中有一个复选框作为其中一列。如果我点击实际复选框的任何位置，ListView的SelectedItem将按预期设置为当前选定的行。另一方面，如果我单击复选框（不先单击该行），则SelectedItem为null或先前单击的行。

任何人都可以帮助我....

干杯

<ListView Width="auto" SelectionMode="Single" x:Name="listBox"  ItemsSource="{Binding MyData}" SelectedItem="{Binding Path=SelectedMyData}">
                        <ListView.View>
                            <GridView>
                                <GridViewColumn Header="Date" Width="120">
                                    <GridViewColumn.CellTemplate>
                                        <DataTemplate>
                                            <ContentPresenter Style="{StaticResource DateTimeContent}" Content="{Binding MyDate}"/>
                                        </DataTemplate>
                                    </GridViewColumn.CellTemplate>
                                </GridViewColumn>
                                <GridViewColumn Header="Is Correct" Width="100">
                                    <GridViewColumn.CellTemplate>
                                        <DataTemplate>
                                            <CheckBox IsThreeState="False" 
                                                      Checked="OnChkChecked"
                                                      Unchecked="OnChkChecked"
                                                      IsChecked="{Binding IsCorrect}"></CheckBox>
                                        </DataTemplate>
                                    </GridViewColumn.CellTemplate>
                                </GridViewColumn>
                            </GridView>
                        </ListView.View>
                    </ListView>




                                    <GridViewColumn.CellTemplate>
                                        <DataTemplate>
                                            <CheckBox IsThreeState="False" 
                                                      Checked="OnChkChecked"
                                                      Unchecked="OnChkChecked"
                                                      IsChecked="{Binding IsCorrect}"></CheckBox>
                                        </DataTemplate>
                                    </GridViewColumn.CellTemplate>
                                </GridViewColumn>
                            </GridView>
                        </ListView.View>
                    </ListView>

Answer 1

这很容易，只需处理复选框上的Click事件：

private void CheckBox_Click(object sender, RoutedEventArgs e) {
    var cb = sender as CheckBox;
    var item = cb.DataContext;
    myListView.SelectedItem = item;
}

Answer 2

您必须解析可视树以获取已选中复选框的索引，并在选中某个复选框时在代码中选择该特定列表框项

您可能也对

感兴趣

How to get checked items in a WPF ListBox?

和

http://goalbook.wordpress.com/2009/09/05/wpf-checkedlist-control/

Answer 3

Veer建议解析可视树以获取复选框。事情是我已经有了复选框。我需要的是包含复选框的listviewitem。经过进一步研究，blog post指出了我正确的方向。以下是获取单击复选框的行的listviewitem的代码：

        private void chkbox_Checked(object sender, RoutedEventArgs e)
    {
        DependencyObject dep = e.OriginalSource as DependencyObject;
        while ((dep != null) && !(dep is ListViewItem))
        {
            dep = VisualTreeHelper.GetParent(dep);
        }

        if (dep != null)
        {
            IMyViewModel vm = DataContext as IMyViewModel;
            vm.SelectedThing = (MyListItemViewModel)lst.ItemContainerGenerator.ItemFromContainer(dep);
            vm.DoSomethingCommand.Execute(e.RoutedEvent.Name.ToLower());
        }
    }

WPF ListView SelectedItem为null

3 个答案: