User-defined functions

[Raffaele]

Can I use user-defined functions defined in an assembly different from the assembly where the report is located?

What about reports exported as XML? Can I call use user-defined functions in this kind of reports considering that they are not located in an assembly?

[Steve]

Hello Raffaele,

In order the user function to work properly you have to deserialize the report from xml by using the report type that contains the user function. For example:

   var serializer = new XmlSerializer(typeof(ReportCatalog));
   var rc = (ReportCatalog)serializer.Deserialize(textReader);

Hope this helps.

Regards,
Steve
the Telerik team

[Sergey]

Hello Steve,
Can you share small sample with report deserialization?
I try follow:

namespace Test
{
 public static class Helper1
 {
  public static string Test()
  { return ""; }
 }
}

Report contains "=Test.Helper1.Test()" value (http://www.telerik.com/help/reporting/expressions-user-functions.html).
When I try to start it I see error "The expression contains object Test that is not defined in current context".

[Steve]

Hi Sergey,

I've attached the ProductCatalog demo report that is serialized to xml using the report type and is after that deserialized using the same report type instead of the base Telerik.Reporting.Report. The report has an user function ColorFromName that as you see works as expected when using this approach.
Note that I have commented out the InitializeComponent method in the report constructor, as otherwise the same items would be loaded twice.

Greetings,
Steve
the Telerik team

[Sergey]

Thank you!