Casting problem in subReport

[ciccio]

Hi,
I have the following statements in my report codebehind ( NeedDataSource) :

 

IEnumerable kl;
kl =(IEnumerable)Report.ReportParameters[0].Value;
List<string> ls = new List<string>();
foreach (IEnumerable ie in kl)
{
ls.Add((string)ie);
}

It works fine.
But if this report is executed as a subreport from another Report i have :
Unable to cast object of type 'System.Char' to type 'System.Collections.IEnumerable'.
on foreach line.

so i tried :

IEnumerable kl;
kl =(IEnumerable)Report.ReportParameters[0].Value;
List<string> ls = new List<string>();
foreach (var ie in kl)
{
ls.Add((string)ie);
}

same problem, but now i can see the value of ie is the first char of the current kl element,
that is if the kl element is "Bye" ie value is "B". Then is obvious i get a casting eroor.
But why i have a different behaviour (report, subreport) and how to solve it?
Any idea?

[Steve]

Hi ciccio,

As you can see from the Using Report Parameters programmatically help article, whenever you're working with report parameters in events, you should use its processing counterpart i.e. instead of:

kl =(IEnumerable)Report.ReportParameters[0].Value;

should be:

Telerik.Reporting.Processing.Report report = (Telerik.Reporting.Processing.Report)sender;
kl =(IEnumerable)report.Parameters["ParameterID"].Value;


Kind regards,
Steve
the Telerik team