Alternate style by Group

[Steve Kaser]

I am trying to find a way to alternate the style of a report by group.  Similar to alternating the by line using conditional formatting "RowNumber()%2=1" but at the group level.  Any suggestions would be welcome.

Thanks - Steve

[Steve]

Hi Steve Kaser,

This is possible to achieve and to illustrate it we would use our ProductCatalog demo report which has 3 groups.
We know that group does not participate in the visual items hierarchy. It is represented by their header and footer only. Looking at API reference for the Telerik.Reporting.Processing.GroupSection class it is logical to assume that Parent property should refer to the group itself i.e. the property path:
ReportItem.Parent of the SubCategory group header will return the reference to the SubCategory group. Looking again in the API reference we see that Telerik.Reporting.Processing.Group has Style property and we will use it for this purpose:
ReportItem.Parent.Style.BackgroundColor

To set this property I will use already created UserFunction in Product Catalog report – ColorFromName().
Enter the following in the group2(ProductSubCategory) binding property:

Property path: Parent.Style.BackgroundColor
Expression: =ColorFromName(Iif(RowNumber("group1")%2=1,"Red","Transparent"))

Note the short syntax for the property path.

Now run the report and you should have alternating groups.

Greetings,
Steve
the Telerik team

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[E Pons]

Hi,

We're using Q1 2011 in a WPF application.  I've attempted to use the method suggested above to implement alternate group shading, but I get a "cannot access setter" error.  This makes sense when I look in the current API documentation, as there is no setter listed for Style.  Then, I tried using "Parent.StyleName" as the property path, but that produced a "binding path is not supported" error.  I'm not sure why because StyleName is listed as a property of ReportItemBase.  Can you please help?

Thanks much!

[Steve]

Hello E Pons,

I've attached the modified report exactly by the suggestion from my previous post which works as expected.

Greetings,
Steve
the Telerik team

[E Pons]

Hi Steve,

Thanks so much for verifying this.  It now works for me as well, so there must have been a typo I missed.  My apologies!!

Cheers,
E