Parameter is missing a value ssrs 2008

Question

I have a parameter of integer datatype which is hidden. When i run the report, report gives me an error

Parameter X is missing a value

Answer 1

Just need to add 1 default value to get around this error (even though that default value will never be used).

-Under "Report Parameter Properties" for that specific parameter, go to the Default Values page.

-Toggle "Specify values"

-Add a value (I added: "just_a_filler_to_get_around_hidden_value_error" so when I look back at it later I remember why I did such a thing)

-click OK

Answer 2

If you specify available values from query, then default values must be in list of available values. Default value in (Available) = true.

Answer 3

There is one other potential here. I have had a situation where the report designer works but the server report object does not. The solution is to delete the server object and then re-save it from the designer.

Answer 4

Assuming you had the same issue as I had, trying to run the report on a web page using a ReportViewer component, I managed to fix that issue by adding a null parameter before rendering the report:

C# code:

var parameters = new List<ReportParameter>();
parameters.Add(new ReportParameter("ParameterName", (string)null));
ReportViewer1.ServerReport.SetParameters(parameters);

Hope that will help