数据网格行详细信息中的按钮需要两个 clik,解决方法会中断双击
本文关键字:clik 两个 解决 双击 中断 方法 详细信息 网格 数据网 按钮 数据 | 更新日期: 2023-09-27 18:33:08
我有一个DataGrid,上面有一个在RowDetailsTemplate中定义的按钮。问题是,单击按钮时,DataGrid 会使用第一次单击来选择行,因此您需要单击该按钮两次。
我已经尝试了这里提供的解决方法:wpf 行详细信息模板焦点:
XAML:
<DataGrid ItemsSource="{Binding SomeCollection}">
<DataGrid.Resources>
<Style TargetType="DataGridRow">
<EventSetter Event="PreviewMouseLeftButtonDown" Handler="SelectRowDetails"/>
<Setter Property="DetailsVisibility" Value="{Binding HasCanadet, Converter={StaticResource BoolToVis}}"/>Mode=OneWay}"/>
</Style>
</DataGrid.Resources>
...
<DataGrid.RowDetailsTemplate>
<DataTemplate>
...
<Button Command="{Binding SomeCommand}" ... '>
...
</DataTemplate>
</DataGrid.RowDetailsTemplate>
...
<DataGrid>
代码隐藏:
private void SelectRowDetails(object sender, MouseButtonEventArgs e)
{
var row = sender as DataGridRow;
if (row == null)
{
return;
}
row.Focusable = true;
row.Focus();
var focusDirection = FocusNavigationDirection.Next;
var request = new TraversalRequest(focusDirection);
var elementWithFocus = Keyboard.FocusedElement as UIElement;
if (elementWithFocus != null)
{
elementWithFocus.MoveFocus(request);
}
}
这很好用,但是我现在需要检测 DataGrid 行上的双击事件。我通过将 InputBindings 添加到 DataGrid 并将 SelectedItem 作为命令参数传递来做到这一点:
...
<DataGrid.InputBindings>
<MouseBinding MouseAction="LeftDoubleClick" Command="{Binding AnotherCommand}" CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=SelectedItem}" />
</DataGrid.InputBindings>
...
问题是双击仅在 RowDetails 上检测到(这很好),但在双击行本身时不会检测到(这不是)。
有什么想法吗?谢谢。
检查事件的源是否为 DataGridDetailsPresenter 类型
private void SelectRowDetails(object sender, MouseButtonEventArgs e)
{
if(e.Source is DataGridDetailsPresenter) // Like this
{
var row = sender as DataGridRow;
if (row == null)
{
return;
}
row.Focusable = true;
row.Focus();
var elementWithFocus = Keyboard.FocusedElement as UIElement;
if (elementWithFocus != null)
{
elementWithFocus.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));
}
}
}