how to add parameters in report viewer?

Question

HY! I have a form application in visual studio 2010 and I want to create a report with report viewer and to add some parameters. I tried to add parameters from code but it didn`

Answer 1

The error you get is because you try to specify your parameter like a field. In the expression-designer you have a special category called "Parameters". From there you can access your parameters. The syntax is =Parameters![FieldName].Value. In your case for example =Parameters!datastart.Value.

Additionaly, note that the parameters must be declared in the "Report Data"-window under "Parameters". Its the same window as you use to declare your recordsets, however there is also a special category for parameters. There are also some options for the datatype and if specification of the parameter is mandatory.