What is wrong in this rdlc expression. When ever the difference is zero it throws error

=iif(Sum(Fields!ClsRead.Value)-Sum(Fields!OpnRead.Value)=0,"NO HSD Supplied",sum(Fields!HSDIssued.Value)/(Sum(Fields!ClsRead.Value)-Sum(Fields!OpnRead.Value))) Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible. Method … Read more

The Report Viewer Web Control HTTP Handler has not been registered in the application’s web.config file

The Report Viewer Web Control HTTP Handler has not been registered in the application's web.config file. Add <add verb="*" path="Reserved.ReportViewerWebControl.axd" type = "Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> to the system.web/httpHandlers section of the web.config file This error is coming . I have already mentioned this line in http handler but still getting this error … Read more

How do I handle null nested objects in RDLC report that is bound to custom assembly object datasource?

I have an RDLC report that I am rendering directly to the Response Stream as PDF (rather than using the ReportViewer). In the code that renders the report, it’s DataSource is bound to a List(Of ClassA) objects defined in a custom assembly. This seems to work for the most part. My problem is that I can’t seem to handle the situation where a nested object is null. For example, given ClassA and ClassB (the nested object) defined as follows: