RadGridVIew and up down selectedItem

[Paweł]

Hello.
My problem is that i cannot move selected item when click up/down keyboard button like:
   private void Window_PreviewKeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Down)
            ...
}

Is there any way to move selection when I press up/down button?

Thanks in advance,
Regards

[Dimitrina]

Hi,

You can select the next(previous) item with a similar code:

if (e.Key == Key.Down)
{
    this.clubsGrid.PendingCommands.Clear();
    this.clubsGrid.PendingCommands.Add(RadGridViewCommands.MoveDown);
    this.clubsGrid.PendingCommands.Add(RadGridViewCommands.SelectCurrentItem);
    this.clubsGrid.ExecutePendingCommand();

    e.Handled = true;
}

Let me know how this works for you.

Regards,
Didie
Telerik

[Paweł]

Hi and thanks for answer.
Unfortunately that doesn't work for me. It does focus first row in grid, but its not really like selection :) I mean normally selected row have blue background, but with Your example it's making only "frame" around row, and pressing Down again doesnt really select next item in dg.
That code work's for me:
Key.Down:
  int ind;
                        if (statusDG.SelectedItem == null)
                            ind = -1;
                        else
                            ind = statusDG.Items.IndexOf(statusDG.SelectedItem);
                        if (ind == statusDG.Items.Count - 1)
                            return;
                        statusDG.SelectedItem = statusDG.Items[ind + 1];
                        statusDG.Focus();

Key.Up:
   int ind = statusDG.Items.IndexOf(statusDG.SelectedItem);
                    if (ind == 0)
                        return;
                    statusDG.SelectedItem = statusDG.Items[ind - 1];
                    LoseFocusOnTB.LoseFocus(tb);
                    statusDG.Focus();

[Dimitrina]

Hi,

The code I suggested works perfectly on my side and I am not sure what would be the difference with your implementation. If you send us a support ticket with a demo project, then we can investigate the case further.

Thank you for sharing your solution with the community.
 

Regards,
Didie
Telerik

[Yannick Turbang]

Hi,

In fact it's very easy to do that here is my solution.

First you need to implement the mouse click  event.

After that you just need to call the mouse click event from the PreviewKeyUp Event.

Also add the SelectionMode="Single" to the grid

private void DG_Logs_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
    //Implement the mouve click event on the row here.
    string message = ((LoggerViewer.Model.DataItems.di_GrilleLogs)
                ((Telerik.Windows.Controls.DataControl)sender).SelectedItem).Log_Message;
}

private void DG_Logs_PreviewKeyUp(object sender, KeyEventArgs e)
{
    DG_Logs_PreviewMouseLeftButtonUp(sender, null);
}

[Yannick Turbang]

Here is the same solution with MVVM Light

<telerik:RadGridView Name="DataGrid"  ItemsSource="{Binding DGPxxx}"
                        SelectionMode="Single"
                        SelectedItem="{Binding DGPxxx_selecteditem, Mode=TwoWay}"
                        >

 <i:Interaction.Triggers>
   <i:EventTrigger EventName="PreviewMouseUp" >
       <MVVVMLightCommand:EventToCommand Command="{Binding DGPxxxClick, Mode=OneWay}" />
   </i:EventTrigger>
   <i:EventTrigger EventName="PreviewKeyUp" >
       <MVVVMLightCommand:EventToCommand Command="{Binding DGPxxxClick, Mode=OneWay}" />
    </i:EventTrigger>
</i:Interaction.Triggers>

 

[Dilyan Traykov]

Hi Yannick,

Thank you for sharing your solution with our community.

Regards,
Dilyan Traykov
Progress Telerik