水晶报表数据库登录参数

你好，我有一个基于windows的c#应用程序，使用Crystal报表作为我的报表工具。我已经提供了所有的登录和数据库信息，但当我运行和部署它…它仍然要求数据库登录。

下面是我的代码

ReportDocument rpt = new ReportDocument();

        TableLogOnInfos crtableLogoninfos = new TableLogOnInfos();
        TableLogOnInfo crtableLogoninfo = new TableLogOnInfo();
        ConnectionInfo crConnectionInfo = new ConnectionInfo();
        Tables CrTables;
        rpt.Load("C:/Operation/Reports/po.rpt");
        crConnectionInfo.ServerName = "192.4.4.4";
        crConnectionInfo.DatabaseName = "Operations";
        crConnectionInfo.UserID = "sa";
        crConnectionInfo.Password = "xxxxxx";


        ParameterFieldDefinitions crParameterFieldDefinitions;
        ParameterFieldDefinition crParameterFieldDefinition;
        ParameterValues crParameterValues = new ParameterValues();
        ParameterDiscreteValue crParameterDiscreteValue = new ParameterDiscreteValue();
        crParameterDiscreteValue.Value = DbClass.PONumber;
        crParameterFieldDefinitions = rpt.DataDefinition.ParameterFields;
        crParameterFieldDefinition = crParameterFieldDefinitions["ParameterPO"];
        crParameterValues = crParameterFieldDefinition.CurrentValues;
        crParameterValues.Clear();
        crParameterValues.Add(crParameterDiscreteValue);
        crParameterFieldDefinition.ApplyCurrentValues(crParameterValues);

        CrTables = rpt.Database.Tables;
        foreach (CrystalDecisions.CrystalReports.Engine.Table CrTable in CrTables)
        {
            crtableLogoninfo = CrTable.LogOnInfo;
            crtableLogoninfo.ConnectionInfo = crConnectionInfo;
            CrTable.ApplyLogOnInfo(crtableLogoninfo);
        }
        crpt.Refresh();
        crpt.ReportSource = rpt;

我头痛的问题是…如果有人知道这件事，请给我一个主意。

谢谢!

SqlConnection myConnection = new SqlConnection("xxx");
 myConnection.Open();
 // Your Code
 myConnection.Close();