<dxe:TextEdit VerticalAlignment="Center" MaskType="RegEx" DisplayFormatString="HH:mm:ss" EditMode="InplaceActive" Mask="([0-1]?[0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9]" EditValue="{Binding RowData.Row.StartTime, NotifyOnValidationError=true,Mode=TwoWay, ValidatesOnExceptions=true}" NullText="hh:mm:ss"> <i:Interaction.Triggers> <ei:KeyTrigger Key="Enter" FiredOn="KeyDown" ActiveOnFocus="True" > <i:InvokeCommandAction Command="{Binding Path=DataContext.KeyDownCommand,ElementName=wndNTCreateGroup}" CommandParameter="{Binding ElementName=gridDate}" /> </ei:KeyTrigger> </i:Interaction.Triggers> </dxe:TextEdit>
An output in which the left arrow key will work