c＃将数据库和参数传递给Crystal报表

Question

I get this error

The types of the parameter field and parameter field current values are not compatible.

when passing both database and parameter to Crystal Reports.

ReportDocument rd = new ReportDocument();

public string user;

public frmReport(string User)
{
        InitializeComponent();
        loadReport();
        this.user = User;
}

public void loadReport()
{
        rd.Load(@"C:\Users\Jeff Enad\Desktop\TEST1\Cebu Hallmark Hotel Management System\Cebu Hallmark Hotel Management System\cryReport.rpt");

        SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;Initial Catalog=dbCebuHallmark;Integrated Security=True");

        SqlDataAdapter da = new SqlDataAdapter("GetAllReport", con);
        rd.SetParameterValue("UserPrinted", user); //This is the parameter
        da.SelectCommand.CommandType = CommandType.StoredProcedure;

        DataSet ds = new System.Data.DataSet();
        da.Fill(ds, "REPORT");

        rd.SetDataSource(ds);

        crystalReportViewer1.ReportSource = rd;
        crystalReportViewer1.Refresh();
}

The SetParameterValue() is causing the error.

Can anyone help me to solve this problem? Should I add parameter in stored procedure or in dataset?

I just want to pass the user's name to the Crystal Report that has database.

Answer 1

You have to set the parameter and value in SqlCommand object in your SqlAdapter . Please see below for the updated code:

    public void loadReport()
    {
        rd.Load(@"C:\Users\Jeff Enad\Desktop\TEST1\Cebu Hallmark Hotel Management System\Cebu Hallmark Hotel Management System\cryReport.rpt");
        SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;Initial Catalog=dbCebuHallmark;Integrated Security=True");
        SqlDataAdapter da = new SqlDataAdapter("GetAllReport", con);
        da.SelectCommand.CommandType = CommandType.StoredProcedure;
        DataSet ds = new System.Data.DataSet();
        da.Fill(ds, "REPORT");
        rd.SetDataSource(ds);
        rd.SetParameterValue("UserPrinted", user); //This is the parameter
        crystalReportViewer1.ReportSource = rd;
        crystalReportViewer1.Refresh();
    }