如何在DataGrid中

Question

執行LeftDoubleClick我實現：

<DataGrid Name="DataGridProcesso" AutoGenerateColumns="False" ItemsSource="{Binding CollectionView}" CanUserReorderColumns="False" CanUserSortColumns="True" AlternatingRowBackground="#D1DFE7" IsSynchronizedWithCurrentItem="True"> 
      <DataGrid.InputBindings> 
       <MouseBinding MouseAction="LeftDoubleClick" 
       Command="{Binding ItemDoubleClickCommand}" /> 
      </DataGrid.InputBindings> 
    ... 

但如果我點擊六次（3雙擊） 我覺得在電池內部發生的第一次點擊，細胞後，終於在DoubleClick才起作用行（我只想，我不確定），我只想當LeftDoubleClick發生在單元格觸發我的事件。

出了什麼問題？

我的DataGrid的全碼：

<DataGrid Name="DataGridProcesso" AutoGenerateColumns="False" ItemsSource="{Binding CollectionView}" CanUserReorderColumns="False" CanUserSortColumns="True" AlternatingRowBackground="#D1DFE7" IsSynchronizedWithCurrentItem="True"> 
      <DataGrid.InputBindings> 
       <MouseBinding MouseAction="LeftDoubleClick" Command="{Binding ItemDoubleClickCommand}" /> 
      </DataGrid.InputBindings> 
      <DataGrid.Resources> 
       <Style TargetType="{x:Type DataGridRow}"> 
        <Setter Property="Padding" Value="0,10,0,10" /> 
        <Setter Property="BorderBrush" Value="Transparent"/> 
        <Setter Property="BorderThickness" Value="0,0,0,0"/> 
       </Style> 
       <Style TargetType="{x:Type DataGridCell}"> 
        <Setter Property="BorderBrush" Value="#CCC"/> 
        <Setter Property="BorderThickness" Value="0,0,1,0"/> 
        <Setter Property="Cursor" Value="Hand" /> 
        <Setter Property="FontFamily" Value="Segoe" /> 
        <Setter Property="FontSize" Value="14" /> 
       </Style> 
      </DataGrid.Resources> 

      <DataGrid.Columns> 
       <DataGridTemplateColumn Header="Data" Width="Auto" HeaderStyle="{StaticResource DataGridColumnHeaderStyle}"> 
        <DataGridTemplateColumn.CellTemplate> 
         <DataTemplate> 
          <Label Content="{Binding Path=Data,Mode=OneTime}" ToolTip="Data" HorizontalAlignment="Right"></Label> 
         </DataTemplate> 
        </DataGridTemplateColumn.CellTemplate> 
       </DataGridTemplateColumn> 

       <DataGridTemplateColumn Header="Número" Width="Auto" HeaderStyle="{StaticResource DataGridColumnHeaderStyle}"> 
        <DataGridTemplateColumn.CellTemplate> 
         <DataTemplate> 
          <Label Content="{Binding Path=Numero,Mode=OneTime}" ToolTip="Número"></Label> 
         </DataTemplate> 
        </DataGridTemplateColumn.CellTemplate> 
       </DataGridTemplateColumn> 

       <DataGridTemplateColumn Header="Descrição" Width="*" HeaderStyle="{StaticResource DataGridColumnHeaderStyle}"> 
        <DataGridTemplateColumn.CellTemplate> 
         <DataTemplate> 
          <Label Content="{Binding Path=Descricao, Mode=OneTime}" ToolTip="Descrição"/> 
         </DataTemplate> 
        </DataGridTemplateColumn.CellTemplate> 
       </DataGridTemplateColumn> 

       <DataGridTemplateColumn Header="Andamento" Width="Auto" HeaderStyle="{StaticResource DataGridColumnHeaderStyle}"> 
        <DataGridTemplateColumn.CellTemplate> 
         <DataTemplate> 
          <Label Content="{Binding Path=Andamento.Descricao, Mode=OneTime}" ToolTip="Andamento"/> 
         </DataTemplate> 
        </DataGridTemplateColumn.CellTemplate> 
       </DataGridTemplateColumn> 

       <DataGridTemplateColumn Header="Lembrete" Width="Auto" HeaderStyle="{StaticResource DataGridColumnHeaderStyle}"> 
        <DataGridTemplateColumn.CellTemplate> 
         <DataTemplate> 
          <Label Content="{Binding Path=Lembrete, Mode=OneTime}" ToolTip="Lembrete"/> 
         </DataTemplate> 
        </DataGridTemplateColumn.CellTemplate> 
       </DataGridTemplateColumn> 
      </DataGrid.Columns> 
     </DataGrid> 

視圖模型的部分：

private ObservableCollection<Processo> _processos; 
    public ObservableCollection<Processo> Processos 
    { 
     get { return _processos; } 
     set 
     { 
      if (value != _processos) 
      { 
       _processos = value; 
       NotifyPropertyChanged(nameof(Processos)); 
      } 
     } 
    } 

    private ICollectionView _collectionView; 
    public ICollectionView CollectionView 
    { 
     get 
     { 
      return _collectionView; 
     } 
     set 
     { 
      _collectionView = value; 
      NotifyPropertyChanged(nameof(CollectionView)); 
     } 
    } 

    public ICommand ItemDoubleClickCommand => new Command<MainWindowViewModel>(a => 
    { 
     AlterarProcesso((Processo)CollectionView.CurrentItem); 
    }); 

Answer 1

嘗試增加IsSynchronizedWithCurrentItem="True"您DataGrid性能。
然後添加CommandParameter="{Binding CollectionView/}"。

<DataGrid Name="DataGridProcesso" IsSynchronizedWithCurrentItem="True" AutoGenerateColumns="False" ItemsSource="{Binding CollectionView}" CanUserReorderColumns="False" CanUserSortColumns="True" AlternatingRowBackground="#D1DFE7" IsSynchronizedWithCurrentItem="True"> 
     <DataGrid.InputBindings> 
      <MouseBinding MouseAction="LeftDoubleClick" 
      Command="{Binding ItemDoubleClickCommand}" 
      CommandParameter="{Binding CollectionView/}"/> 
     </DataGrid.InputBindings> 

注意在CommandParameter的/這將確保其綁定到當前項目。 然後當它與IsSynchronizedWithCurrentItem="True"一起使用時，它確保它綁定到選定的項目。