Crystal Reports keeps prompting for Parameter

Question

I am having a terrible problem with crystal report 2010 for .net 4.0 (I am using the fixed 13.0.1 version but 13.0.4 is released). No matter which way I try, I am always get

Answer 1

create the parameter but do not assign it a formula using selection formula -> record. Apply this parameter from vb or c#.net IDE by creating a text box,a label and a button. Put the selection formula on click button procedure.

Answer 2

Finally found the solution. It doesn't prompt if we set the DataSource after the ParameterValue.

So anyone of those will work if we put them in this order:

// First, call SetParameterValue. Then, call SetDatasource.     
CustomerReport1.SetParameterValue("PathLocation", Location.Text);
CustomerReport1.Database.Tables[0].SetDatasource(this.dataset);

CrystalReportViewer1.ReportSource = CustomerReport1;

Thank you all.