CrystalReportViewer not recognizing parameters values automatically

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My values arent getting pass automatically, any idea why?

On load code:

C#

//login so users wont have to enter user/pass all the time
ReportDocument cryRpt = new ReportDocument();
TableLogOnInfos crtableLogoninfos = new TableLogOnInfos();
TableLogOnInfo crtableLogoninfo = new TableLogOnInfo();
ConnectionInfo crConnectionInfo = new ConnectionInfo();
Tables CrTables;

cryRpt.Load(Server.MapPath("~/reports/RecReport.rpt"));

crConnectionInfo.ServerName = "e40";
crConnectionInfo.DatabaseName = " ";
crConnectionInfo.UserID = "usr";
crConnectionInfo.Password = "pas";

CrTables = cryRpt.Database.Tables;

foreach (CrystalDecisions.CrystalReports.Engine.Table CrTable in CrTables)
{
    crtableLogoninfo = CrTable.LogOnInfo;
    crtableLogoninfo.ConnectionInfo = crConnectionInfo;
    CrTable.ApplyLogOnInfo(crtableLogoninfo);
}

CrystalReportSource1.ReportDocument.SetParameterValue(0, Request.QueryString["PONU"]);
CrystalReportSource1.ReportDocument.SetParameterValue(1, Request.QueryString["MRNU"]);

CrystalReportViewer1.ReportSource = cryRpt;
CrystalReportViewer1.RefreshReport();

It asks me to enter the values again after the code run, am i missing anything?

Posted 28-Jan-16 11:35am

r00n3y

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an0ther1 · Answer 1 · 2016-01-28T13:16:00

Solution 1

You do not need to refresh the Report viewer after setting the report source.
Remove the line

C#

CrystalReportViewer1.RefreshReport();

Posted 28-Jan-16 13:16pm

an0ther1

Comments

r00n3y 28-Jan-16 20:35pm

i have tried that and it comes back with perms. prompts

an0ther1 28-Jan-16 21:23pm

I have about 10 different projects using Crystal Reports (both ASP & Windows Form based) and, admittedly, use a different processing order to you. See new Solution below for additional information.

an0ther1 31-Jan-16 15:22pm

Actually, sorry I completely missed why you are having the problem.
The below solution should work correctly but I think the problem is where you have;
CrystalReportSource1.ReportDocument.SetParameterValue...
Set the Report parameters using as below;
cryRpt.SetParameterValue...

Kind Regards

an0ther1 · Answer 2 · 2016-01-28T15:49:00

The way I load a report is as follows - this always works for me regardless if the parameters are Crystal or due to an underlying stored procedure;

C#

using(ReportDocument crReport = new ReportDocument())
{
    crReport.Load("Path and file name");
    if(crReport.DataDefintion.ParameterFields.Count > 0)
    {
        foreach(ParameterFieldDefintion crDef in crReport.DataDefinition.ParameterFields)
        {
            // check the parameter is not in a Sub Report
            if(crDef.ReportName == string.Empty)
            {
                crReport.SetParameterValue(crDef.ParameterFieldName, "myvalue");
            }
        }
    }
    ConnectionInfo crConn = new ConnectionInfo();
    crConn.ServerName = "myServer";
    crConn.DatabaseName = "myDbName";
    crConn.UserID = "myUserName";
    crConn.Password = "myPassword";
    Tables crTables = crReport.Database.Tables;
    // I have had problems using the tables collection so instead I use an enumerator
    for(int i = 0; i < crTables.Count; i++)
    {
        Table crTable = crTables[i];
        TableLogOnInfo tblInfo = crTable.LogOnInfo;
        tblInfo.ConnectionInfo = crConn;
        crTable.ApplyLogOnInfo(tblInfo);
    }
    if(crReport.Subreports.Count > 0)
    {
        for(int i = 0; i < crReports.Subreports.Count; i++)
        {
            using(ReportDocument crSub = crReport.OpenSubReport(crReport.Subreports[i].Name)
            {
                Tables crSubTables = crSub.Database.Tables;
                for (int ii = 0; ii < crSubTables.Count; ii++)
                {
                    Table crSubTable = crSubTables[i];
                    TableLogOnInfo tblSInfo = crSubTable.LogOnInfo;
                    tblSInfo.ConnectionInfo = crConn;
                    crSubTable.ApplyLogOnInfo(tblSInfo);
                }
                crSub.Close();
            }
        }
    }
}
this.crystalReportViewMain.ReportSource = crReport;
// this.crystalReportViewMain.RefreshReport();

If I uncomment the last line I get the behavior you describe in that the Report then prompts me to re-enter the parameter values

Really hope this helps you

Kind Regards