Selection using arrow keys

[Magnus]

Is it possible to prevent selection with the arrow keys? Whenever I press an arrow key the selected date change, but I would prefer if the selection wasn't changed until I confirm with Enter (which makes the popup close). I'm binding to SelectedDate and tried to set the UpdateSourceTrigger to LostFocus, but that didn't work.

[Stefan Nenchev]

Hi Magnus,

You can try setting the binding to the underlying property with mode = OneTime and eventually manually update it on the DropDownClosed event of the RadDatePicker. For example, if the scenario you have is a RadDateTimePicker in a cell of RadGridView:

private void RadDatePicker_DropDownClosed(object sender, RoutedEventArgs e)
       {
           ((sender as RadDateTimePicker).ParentOfType<GridViewRow>().Item as Club).Established = (sender as RadDateTimePicker).SelectedDate;
       }

Would this work for you?

Regards,
Stefan Nenchev
Telerik by Progress

[Magnus]

Hi, I solved it by creating a custom RadDatePicker control and adding a dependencyproperty called "ConfirmedSelectedDate" which I don't update when the dropdown is open.

 

//The SelectedConfirmedDate property. Same as SelectedDate, but not updated when DropDown is open
public static readonly DependencyProperty SelectedConfirmedDateProperty = DependencyProperty.Register("SelectedConfirmedDate", typeof(DateTime?), typeof(MyDatePicker));

public MyDatePicker()
{
  SelectionChanged += OnSelectionChanged;
  DropDownClosed += OnDropDownClosed;
}

private void OnDropDownClosed(object sender, RoutedEventArgs routedEventArgs)
{
  // Update the confirmed selected date when closing dropdown
  SelectedConfirmedDate = SelectedDate;
}

private void OnSelectionChanged(object sender, SelectionChangedEventArgs args)
{
  if (IsDropDownOpen)
  {
    // The confirmed date should not update when dropdown is open
    return;
  }

  this.SelectedConfirmedDate = this.SelectedDate;
}