在 RowClick 上选择行而不是在 Control Click 上

Question

当我创建 DataGrid 时，默认情况下，要选择一行，我需要单击单元格内的控件。

我想在行中单击的任何位置选择该行。

有没有办法做到这一点？

<DataGrid AutoGenerateColumns="False"
      CanUserAddRows="False" 
      IsReadOnly="True"
      Style="{StaticResource DataGridStyle}"
      HorizontalContentAlignment ="Center"
      VerticalContentAlignment ="Center"
      VerticalScrollBarVisibility="Auto"
      SelectionMode="Single"
      ItemsSource="{Binding Items, Mode=OneWay}"
      SelectedItem="{Binding SelectedItem, Mode=TwoWay}">
<DataGrid.Columns>
    <DataGridTextColumn Header="Name"
                        Binding="{Binding Name}"
                        Width="4*" />
    <DataGridTextColumn Header="Description"
                        Binding="{Binding Description}"
                        Width="4*" />
</DataGrid.Columns>

Answer 1

如果你想选择行，即使你不会点击特定的单元格，你应该为 DataGridRow 添加带有 EventSetter 的 ItemContainerStyle，如下所示：

<Grid>
    <DataGrid AutoGenerateColumns="False" ItemsSource="{Binding Customers}">
        <DataGrid.Columns>
            <DataGridTextColumn Header="Name" Binding="{Binding Name}" />
            <DataGridTextColumn Header="Name" Binding="{Binding Surname}" />
            <DataGridTextColumn Header="Name" Binding="{Binding Age}" />
        </DataGrid.Columns>
        <DataGrid.ItemContainerStyle>
            <Style TargetType="{x:Type DataGridRow}">
                <EventSetter Event="MouseDown" Handler="DataGridRow_MouseDown" />
            </Style>
        </DataGrid.ItemContainerStyle>
    </DataGrid>
</Grid>

在代码隐藏中，您可能会从发送方获取 datarowgrid，遍历可视化树以获得 datagrid 本身（例如，如果您不想通过 x:name 调用它），然后只需设置 SelectedItem作为dataGridrow.Item

    private void DataGridRow_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
    {
        var dataGridRow = (DataGridRow)sender;
        if (dataGridRow != null)
        {
            var dataGridRowParent = FindParent<DataGrid>(dataGridRow);
            if (dataGridRowParent != null)
            {
                dataGridRowParent.SelectedItem = dataGridRow.Item;
            }
        }
    }

    public static T FindParent<T>(DependencyObject child) where T : DependencyObject
    {
        //get parent item
        DependencyObject parentObject = VisualTreeHelper.GetParent(child);

        //we've reached the end of the tree
        if (parentObject == null) return null;

        //check if the parent matches the type we're looking for
        T parent = parentObject as T;
        if (parent != null)
            return parent;
        else
            return FindParent<T>(parentObject);
    }