在做的一个c#的项目中发现Datagrid没办法直接对鼠标单击进行响应，调用MouseDown事件也需要点击某一行第二次才能响应。所以借助EventSetter来简单的实现了一个。

界面部分的代码

        <DataGrid x:Name="dataGrid" HorizontalAlignment="Left" Margin="10,38,0,0"

                  VerticalAlignment="Top" Height="257" FontSize="13.333"

                  AutoGenerateColumns="False" AlternationCount="2" CanUserAddRows="False"

                  MinWidth="504" Width="513" SelectionUnit="FullRow">

            <DataGrid.RowStyle>

                <Style  TargetType="DataGridRow">

                    <EventSetter Event="GotFocus" Handler="Item_GotFocus"/>

                </Style>

            </DataGrid.RowStyle>

            <DataGrid.Columns>

                <DataGridCheckBoxColumn />

                <DataGridTextColumn Header="歌曲名" Width="200" Binding="{Binding Path=Title}" IsReadOnly="True"/>

                <DataGridTextColumn Header="艺术家" Width="127" Binding="{Binding Path=Artist}" IsReadOnly="True"/>

                <DataGridTextColumn Header="专辑" Width="140" Binding="{Binding Path=Album}" IsReadOnly="True"/>

            </DataGrid.Columns>

        </DataGrid>

对应的c#的代码

        private void Item_GotFocus(object sender, RoutedEventArgs e)

        {

            var item = (DataGridRow)sender;

            FrameworkElement objElement = dataGrid.Columns[0].GetCellContent(item);

            if (objElement != null)

            {

                CheckBox objChk = (CheckBox)objElement;

                objChk.IsChecked = !objChk.IsChecked;

            }

        }

附上用mousedown事件的代码

        private void DataGrid_MouseDown(object sender, MouseButtonEventArgs e)

        {

            if (e.LeftButton == MouseButtonState.Pressed)

            {

                var se = dataGrid.SelectedItem;

                FrameworkElement objElement = dataGrid.Columns[0].GetCellContent(se);

                if (objElement != null)

                {

                    CheckBox objChk = (CheckBox)objElement;

                    objChk.IsChecked = !objChk.IsChecked;

                }

            }

        }

需要在这个界面的构造函数中添加

 dataGrid.MouseDown += DataGrid_MouseDown;

• 1

再附上一个效果图