Question

I have the following c# code in a web form:

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
        {
            string url;
            string startdate;
            string enddate;
            string costcenter;
            string account;

            //url = "http://server/reportserver?/Finance/Cost Spending/Cost Center Details&rs:Command=Render&rc:Parameters=false";
            url = "http://server/reportserver?/Finance/Cost Spending/Cost Center Totals&rs:Command=Render&rc:Parameters=false";
            costcenter = "&costcenter=990";

            startdate="&startdate=" + Convert.ToString(txtStartDate.Text);
            enddate = "&enddate=" + Convert.ToString(txtEndDate.Text);

            account="&account=" + Convert.ToString(GridView1.SelectedRow.Cells[1].Text);

            url =url + startdate + enddate + costcenter + account;


            //TextBox1.Text = Convert.ToString(GridView1.SelectedRow.Cells[1].Text);
                Response.Redirect(url, false);

        }

I’ve tested a very similer version of this code against another report, the only different being the costcenter parameter. The other report worked fine, but every time i run this code i get the error: “the ‘costcenter’ parameter is missing a value”. The only thing i can think of that’s significantly different between the two reports is that in the Cost Center Totals report the costcenter parameter is used to populate the accounts parameter (both are multi-select).

Here’s what the parameters page looks like:

Answer 1

Ok, I figured out the issue thanks to Alison’s poke at the parameters/data sets. What was happening was I had 4 parameters, start date, end date, cost center, and accounts. In the report the account data set relies on the cost center parameters to populate the drop down list. I created a copy of the report, removed the cost center parameter, and removed the data set from the account parameter. I updated the code and ran it and BAM! It worked.