如何在Visual Studio 2010中将Crystal报表加载到报表查看器？

Question

我已经厌倦了尝试，但是我无法完成工作，我的问题是我想加载我的水晶报告以报告视图。 我已经制作了水晶报表，并且报表查看器有一个Windows窗体，但是如何在报表查看器中显示报表呢？

private void frmRptViewer_Load(object sender, EventArgs e)
{
        try
        {
            string SqlConnentionString = System.IO.File.ReadAllText("Connect.txt");


            SqlConnection con = new SqlConnection(SqlConnentionString);
            con.Open();
            SqlCommand com = new SqlCommand("SELECT EmployeeInfo.EmployeeCode, EmployeeInfo.DOJ,EmployeeInfo.GrossSalary,ea.Balance, EmployeeAdvance.MonthlyInst FROM  EmployeeInfo Left Outer JOIN EmployeeAdvance ON EmployeeInfo.EmployeeID = EmployeeAdvance.EmployeeID Left Outer Join (select employeeid,sum(dr)-sum(cr) as Balance from Deduction_Ledger where Deduction_type_ID = 1 Group By EmployeeiD ) ea on EmployeeInfo.employeeid = ea.employeeid where EmployeeInfo.dor is null", con);
            com.CommandType = CommandType.Text;
            SqlDataAdapter sdt = new SqlDataAdapter(com);
            DataTable ds = new DataTable();
            sdt.Fill(ds);
            EmpReport er = new EmpReport();
            er.SetDataSource(ds);
            reportViewer.ReportSource = er;
            reportViewer.Refresh();
            con.Close();
        }
        catch (Exception ex)
        {
            throw new ApplicationException(ex.Message);
        }
    }


}

请有人帮助我先谢谢

Answer 1

我不使用C＃

但我注意到您的SQL语句从三个表EmployeeInfo，ea和EmployeeAdvance中选择

在这种情况下

您需要将包含三个表的DATASET传递给报表，而不是DATATABLE

在这里查看我的答案 ，可能会对您有所帮助