if (((MaskDateTimeProvider)radTimePicker1.TimePickerElement.MaskedEditBox.Provider).SelectedItemIndex == 2)
e.Handled = char.IsLetterOrDigit(e.KeyChar);
The user is allowed to use the arrow keys for minutes navigation in 15 minutes interval. But the functionality to type in directly the minutes numbers is disabled due to the complexity of handling specific cases.
I hope this information helps. Should you have further questions, I would be glad to help.
TRY TELERIK'S NEWEST PRODUCT - EQATEC APPLICATION ANALYTICS for WINFORMS.
Learn what features your users use (or don't use) in your application. Know your audience. Target it better. Develop wisely. Sign up for Free application insights >>