Why the “database login” dialog is shown?

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C#

CrystalReports

Hi,

My code to load a .rpt file (crystal report) from an exe file (C#):

ReportDocument cryRpt = new ReportDocument();
cryRpt.Load(strRptPath);

cryRpt.DataSourceConnections.Clear();
cryRpt.DataSourceConnections[0].SetConnection(m_strServerName, m_strDBName, false);
cryRpt.DataSourceConnections[0].IntegratedSecurity = true;
for (int i = 0; i < arrFields.Count(); i++)
{
    cryRpt.SetParameterValue(arrFields[i], arrValues[i]);
}
cryRpt.RecordSelectionFormula = m_strFormula;

rptViwer_epd.ReportSource = m_cryRpt;
rptViwer_epd.SelectionFormula = m_Report.RecordSelectionFormula;
rptViwer_epd.Refresh();

Why the "Database login" dialog is shown, with empty and disabled Database and server name fields?
I do not want the "loing datatbase dialog" is be shown, because i set the "database server and database" names dynamically, in code.

Please help me.

What I have tried:

Connect dynamically to DataBase, without showing "login dialog"