passing a variable to a report form

[steve_rm]

Hello.

I have a webform that when the user clicks print receipt, it will print a report. This works ok. But l want to pass a variable from the form to be displayed in the report.

My code so far: I want to pass totalcost and display that in the report.

string totalCost = "1000";
			rptReceipt customerReceipt = new rptReceipt();
			this.rptViewerReceipt.SelectionFormula = "{PurchasedProducts.CustomerID} = '" + customerID + "' ";
			this.rptViewerReceipt.ReportSource = customerReceipt;
			this.rptViewerReceipt.Refresh();
			this.rptViewerReceipt.Show();

Many thanks in advance,

Steve