Sql report

I want to add a new filed (No house) in the dataset of a parameter so that If i select that value in the report ,it must retrive the values from stored procedure.

I have added a field but it is not even showing in the report when i preview it.So how can i do that.

I tried thi below way but not working

http://msprojectnow.com/blog/reports-in-ssrs-with-multi-value-parameters-and-null-values

Thanks