I find when I click decimal point, the point won't display in XamMaskedEditor. Then if I input a number, the decimal point display. I want to know how can I see the decimal point when I input it.  The Mask for the Editor is "{double}". Following is my xaml code.

        <igEditors:XamMaskedEditor x:Name="PART_FocusSite"
                                   Value="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=Cell.Value, Mode=TwoWay, UpdateSourceTrigger=LostFocus}"
                                   ValueType="{x:Type system:Double}"
                                   DisplayMode="Raw"
                                   DataMode="Raw"
                                   PromptChar=""
                                   Padding="4,2,3,2"
                                   HorizontalContentAlignment="Left"
                                   VerticalContentAlignment="Center"
                                   Mask="{x:Static local:GridControlCell.DoubleMask}">