Hello Jaffar,

Could you please be more specific what is your issue and when does it occurs. Also it will be great if you could send us an isolated sample project, where the issue is reproduced, so I can investigate it further for you.

Looking forward for your reply.

It suppreses the ungrouping also ..

We have change Orientation of the XamDataGrid.

Below style we have applied on the Label Presenter..

<Style TargetType="{x:Type igDP:LabelPresenter}">

<EventSetter Event="PreviewMouseLeftButtonDown" Handler="Header_PreviewMouseLeftButtonDown"/>

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="igDP:LabelPresenter">

<Grid Background="#FFEAEFF1" HorizontalAlignment="Stretch" Margin="-0.5" >

<Rectangle Fill="#FFC2DBF0" Visibility="Hidden" x:Name="rectbackColor" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>

<TextBlock FontWeight="Bold" Foreground="Black" Margin="5,0,0,0" TextAlignment="Left" HorizontalAlignment="Stretch" Text="{TemplateBinding Content}"/>

</Grid>

</ControlTemplate>

</Setter.Value>

</Setter>

<Setter Property="HorizontalAlignment" Value="Stretch"/>

</Style>

Now..When our Form loaded... we want to make the "Rectangle" visible for first field of XamDataGrid....

On "Header_PreviewMouseLeftButtonDown" we have change the Rectangular Visible ture and false

 if (labelPresenter != null)
            {
                Visibility visbility = Visibility.Collapsed;
                if (IsVisbile)
                    visbility = Visibility.Visible;
                //Rectangle rectangle = (Rectangle)cellValuePresenterRect.Template.FindName("rectbackColor", cellValuePresenterRect);
                Rectangle rectangle = (Rectangle)labelPresenter.Template.FindName("rectbackColor", labelPresenter);
                if (rectangle != null)
                    rectangle.Visibility = visbility;
            }

I want to Make the Rectangular Visible True when form loaded..

How to do that..?