C# WPF : Fire SelectionChanged 이벤트 먼저 다른 이벤트 전에

Question

내 질문에 간단합니다 :
나는 listBox에 일부 DataTemplate이 포함되어 있습니다.

SelectionChanged = "stationListBox_SelectionChanged" 

그리드 내부의 mouseDown 이벤트 (그리드 데이터 템플릿의 일부입니다) :

MouseDown = "Grid_MouseDown" 

나는 SelectionChanged 이벤트를 원하는 보시다시피 나는 목록 상자 내부의 SelectionChanged 이벤트가 먼저 해고 먼저 그리고 나서 MouseDown 이벤트. 그 이유는 선택한 항목에 대해 뭔가를하고 싶기 때문에 내가 선택한 사람을 먼저 알아야하기 때문입니다.

는 XML :

<ListBox x:Name="stationListBox" Grid.Row="0" ItemsSource="{Binding}" SelectionChanged="stationListBox_SelectionChanged" Background="#FF5C7591"        
    VerticalAlignment="Stretch" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"> 
    <ListBox.Resources> 
     <DataTemplate DataType="{x:Type viewModels:StationViewModel}"> 
      <Grid Margin="0,0,0,2" IsEnabled="{Binding IsEnabled, Mode=TwoWay}" MouseDown="Grid_MouseDown" > 
      <Frame BorderBrush="#B935373F" BorderThickness="4"></Frame> 
       <StackPanel Orientation="Vertical" Margin="10" >     
        <StackPanel Orientation="Horizontal"> 
         <Image Width="30" Height="30" Margin="3,0" Source="Images\station.png" HorizontalAlignment="Left" /> 
         <TextBlock Text="{Binding Name}" FontSize="14" TextAlignment="Left" Width="80" FontFamily="Arial"/> 
          <Grid> 
           <Image Width="20" Height="20" Margin="3,0" Source="Images\turnOn.png" HorizontalAlignment="Right" Visibility="{Binding IsStationOpen, Mode=TwoWay}" /> 
           <Image Width="20" Height="20" Margin="3,0" Source="Images\turnOff.png" HorizontalAlignment="Right" Visibility="{Binding IsStationClose, Mode=TwoWay}" /> 
           </Grid> 
         <Image Width="20" Height="20" Margin="3,0" Source="Images\delete2.png" HorizontalAlignment="Right" Visibility="{Binding Mode=TwoWay, Path=IsSelected}" 
          ToolTip="Delete station" MouseDown="Image_MouseDown" /> 
        </StackPanel>     
        <StackPanel Name="_editStationGrid" Orientation="Vertical" Visibility="{Binding IsEditable,Mode=TwoWay}"> 
         <Expander Visibility="Visible" IsExpanded="{Binding IsExpandered, Mode=TwoWay}"> 
          <Expander.Header> 
           <StackPanel Orientation="Horizontal"> 
            <TextBlock>Edit Station:</TextBlock> 
           </StackPanel> 
          </Expander.Header> 
          <StackPanel Orientation="Vertical"> 
           <StackPanel Orientation="Horizontal" Margin="20,5,5,5" > 
            <Label Content="Name:"/> 
            <TextBox MinWidth="120" Text="{Binding Name, Mode=TwoWay}"></TextBox> 
           </StackPanel> 
           <StackPanel Orientation="Horizontal" Margin="20,0,5,0" > 
            <Label Content="IP:" Margin="0,0,20,0"/> 
            <TextBox MinWidth="120" Text="{Binding IP, Mode=TwoWay}" ></TextBox> 
           </StackPanel> 
          </StackPanel> 
         </Expander> 
        </StackPanel> 
       </StackPanel> 
      </Grid> 
     </DataTemplate> 
    </ListBox.Resources> 
</ListBox> 

코드 :

private void stationListBox_SelectionChanged(object sender, SelectionChangedEventArgs e) 
{ 
    this._selectedStation = ((StationViewModel)this.stationListBox.SelectedItem); 
} 

private void Grid_MouseDown(object sender, MouseButtonEventArgs e) 
{ 
    if (inEditMode && e.ClickCount == 1) 
    { 
     if (_selectedStation.IsSelected == System.Windows.Visibility.Visible) 
      _selectedStation.IsSelected = System.Windows.Visibility.Collapsed; 
     else 
      _selectedStation.IsSelected = System.Windows.Visibility.Visible; 
    } 

    if (!inEditMode && e.ClickCount == 2) 
    { 
     if (_selectedStation_Event != null) 
      _selectedStation_Event(_selectedStation); 
    } 
} 

Answer 1

당신은 디스패처 오브젝트 사용할 수 있습니다 : 당신이하지 않는 이유

private void Grid_MouseDown(object sender, MouseButtonEventArgs e) 
    { 
     this.Dispatcher.BeginInvoke(new Action(delegate 
     { 
      // do stuff 
     } 
     )); 
    }