[Solved] Virtualization and behavior implementation issue

[Zainab Vora]

Hello,

I am currently using RadGridView to display large amount of data, I am using silverlight 3 and gridview version is 2010.1.309.1030

I need to apply Foreground color to each cell depending on the value being displayed. Currently we are doing using styles as follows

  <Controls:GridViewCellContentControl GridViewCell="{Binding RelativeSource={RelativeSource TemplatedParent}}" HorizontalContentAlignment="Stretch">
                <ContentPresenter
                    x:Name="PART_ContentPresenter"
                    Margin="{TemplateBinding Padding}"
                    Content="{TemplateBinding Content}"
                    ContentTemplate="{TemplateBinding ContentTemplate}"/>
            </Controls:GridViewCellContentControl>

and the Style is applied to the grid column as follows

 column.CellStyle = Resources["DefaultGridViewCellStyle"] as Style;

But this method slows down the application, so we are looking for different alternative

There was this blog about applying highlights through behaviors
http://blogs.telerik.com/blogs/posts/09-10-03/adding_additional_power_to_radgridview_for_silverlight_with_attached_behaviors.aspx
I tried to implement this. But came across different issue.

Due to large amount of data, we have column virtualization on and it can not be disabled. So event onRowLoad contains only the cell values being displayed and not the complete row. After scrolling, the behavior is not applied to the other cells.

Is there any other event that can be used (which gets activated after the scrolling happens)??

Or any other way that the behavior can be applied on GridViewCell??

Thank you so much

[Yavor Georgiev]

Hello Zainab Vora,

 The very next minor release of the version you are using, 2010.1.422.1030 aka 2010 Q1 SP1 adds conditional style and template selectors for various elements of RadGridView, including GridViewCell. You can learn more about them here. StyleSelectors are the officially-supported way of applying formatting to only certain elements based on some logic.

Kind regards,
Yavor Georgiev
the Telerik team