wpf - 如何从具有焦点的模板元素中设置 ListView 选择？

Question

我有一个 ListView，它使用数据模板在单元格中显示特定控件：

            <ListView Grid.Row="1" ItemsSource="{Binding Ratings}" SelectedItem="{Binding SelectedRating}"  Margin="5" MinHeight="50" SelectionMode="Single" ScrollViewer.CanContentScroll="True"
                  local:GridViewSort.Enable="True">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Date" local:GridViewSort.PropertyName="RatingDate">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <DatePicker SelectedDate="{Binding RatingDate}"/>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                    <GridViewColumn Header="Rating ID" local:GridViewSort.PropertyName="RatingID">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBox Text="{Binding RatingID}" Width="35" />
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                    <GridViewColumn Header="Name" local:GridViewSort.PropertyName="RatingName">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBox Text="{Binding RatingName}" Width="35" />
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                    <GridViewColumn Header="Age" local:GridViewSort.PropertyName="RatingAge">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <StackPanel Orientation="Horizontal">
                                    <TextBox Text="{Binding RatingAge}" Width="35" />
                                    <TextBlock Text=" yrs"/>
                                </StackPanel>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>

我还有一个删除按钮来删除选定的行。

我的用户习惯于单击编辑和日期控件（不会更改所选行），然后单击删除以删除他单击的行。不幸的是，这会删除错误的行。

每当用户单击控件时，如何更改行选择？

Answer 1

您可以在 ListViewItem 上使用 PreviewMouseUp 事件：

<ListView Grid.Row="1" ItemsSource="{Binding Ratings}" SelectedItem="{Binding SelectedRating}"  Margin="5" MinHeight="50" SelectionMode="Single" ScrollViewer.CanContentScroll="True"
                  local:GridViewSort.Enable="True">
    <ListView.Resources>
        <Style TargetType="{x:Type ListViewItem}">
            <EventSetter Event="PreviewMouseUp" Handler="ListViewItem_PreviewMouseUp" />
        </Style>
    </ListView.Resources>
    <ListView.View>
        <GridView>
        ...

后面的代码：

private void ListViewItem_PreviewMouseUp(object sender, MouseButtonEventArgs e)
{
    var listViewItem = sender as ListViewItem;
    if (listViewItem != null)
    {
        listViewItem.IsSelected = true;
    }
}