Prevent jumping to next row when user hits Enter in RadGridView - wpf

Question

I have a RadGridView from Telerik UI for WPF with an editable column. When user edits a cell in that column and hits Enter, the same cell in next row in the grid gets focus.
I want the cell that the user just edited to lose focus. How to do this MVVM-style?

Answer 1

You can change this behavior by writing a custom keyboard command provider. This provider overrides the default Enter press action. It commits the edits and deselects the cellby setting the SelectedItem to null.
public class CustomKeyboardCommandProvider : DefaultKeyboardCommandProvider
{
private readonly GridViewDataControl _grid;
public CustomKeyboardCommandProvider(GridViewDataControl grid)
: base(grid)
{
_grid = grid;
}
public override IEnumerable<ICommand> ProvideCommandsForKey(Key key)
{
var commands = base.ProvideCommandsForKey(key).ToList();
if (key != Key.Enter)
return commands;
commands.Clear();
commands.Add(RadGridViewCommands.CommitEdit);
_grid.SelectedItem = null;
return commands;
}
}
You have to assign the new provider. The easiest way is in code-behind, as it has a constructor parameter.
MyRadDataGridView.KeyboardCommandProvider = new CustomKeyboardCommandProvider(TestGridView);
Alternatively, create a TriggerAction<RadGridView> and attach it to the Loaded event of the grid view.
public class SetCustomKeyboardCommandProviderAction : TriggerAction<RadGridView>
{
protected override void Invoke(object parameter)
{
AssociatedObject.KeyboardCommandProvider = new CustomKeyboardCommandProvider(AssociatedObject);
}
}
<telerik:RadGridView>
<b:Interaction.Triggers>
<b:EventTrigger EventName="Loaded">
<local:SetCustomKeyboardCommandProviderAction/>
</b:EventTrigger>
</b:Interaction.Triggers>
<!-- ...other definitions. -->
</telerik:RadGridView>