How to show crystal report from GridView?

Question

I have a GridView with one ButtonField column like this: I have already Created Crystal Report based On stored procedure with one input Parameter called ID. I kept the ID in DataKeyNames of the GridView.

So when the user click the print button in the Gridview, the corresponding crystal reports to be displayed.

Eagerly waiting for your useful tips.

Answer 1

I got the answer.

        if (e.CommandName == "printReport")      
        {
            int ID = Convert.ToInt32(GridView1.SelectedDataKey.Value);
            try
            {
                CrystalDecisions.CrystalReports.Engine.ReportDocument rpt =
                            new CrystalDecisions.CrystalReports.Engine.ReportDocument();

                string conn = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
                string[] str = conn.Split(';');
                string server = str[0].Substring(str[0].IndexOf(" = ") + 3);
                string database = str[1].Substring(str[1].IndexOf(" = ") + 3);
                string userid = str[2].Substring(str[2].IndexOf(" = ") + 3);
                string password = str[3].Substring(str[3].IndexOf(" = ") + 3);

                rpt.Load(Server.MapPath("~/Engineering/Reports/Report.rpt"));

                for (int i = 0; i < rpt.DataSourceConnections.Count; i++)
                    rpt.DataSourceConnections[i].SetConnection(server, database, userid, password);
                rpt.SetParameterValue(0, ID);

                rpt.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, HttpContext.Current.Response, true, "Report");
            }
            catch (Exception ex)
            {
                return ex.ToString();
            }

        }