Hi, I am having a problem when I group the unboundfield of type date is not grouping it and it puts everything as one group. Tried several things and seems not working. I tried adding format and EditType and all those doesn't seem like fixing it. what am I doing wrong here?

 <igDP:UnboundField   Column="6" Row="0"  Name="Date Attached"   

                            BindingPath="GlobalObjectAttachments[0].AttachmentTimestamp"

                            BindingMode="OneWay">

                            <igDP:Field.Settings>

                                <igDP:FieldSettings AllowEdit="False"    AutoSizeOptions="Label">

                                    <igDP:FieldSettings.EditorStyle>

                                        <Style TargetType="{x:Type igEditors:XamDateTimeEditor}" >

                                            <Setter Property="Mask" Value="{}{date}"/>

                                        </Style>

                                    </igDP:FieldSettings.EditorStyle>

                                </igDP:FieldSettings>

                            </igDP:Field.Settings>

                        </igDP:UnboundField>

Thanks

Ganesh