C#怎么把水晶报表显示在crystalReportViewer控件中

要具体过程，比如数据库的DATASET什么的都怎么写。一步步把代码写上就行。报表已经创建好了。我的主要目的是要在这个控件中显示不同的报表。谢谢

答案：customerReport = new ReportDocument();
        string reportPath = Server.MapPath("PrintGif\\CrystalReport.rpt");
        customerReport.Load(reportPath);
        customerReport.SetDataSource(dt);

        ParameterFields paramFields = new ParameterFields();
        ParameterField paramField1 = new ParameterField();
        ParameterField paramField2 = new ParameterField();
        ParameterField paramField3 = new ParameterField();
        ParameterField paramField4 = new ParameterField();
        ParameterField paramField5 = new ParameterField();
        ParameterField paramField6 = new ParameterField();
        ParameterField paramField7 = new ParameterField();
        ParameterField paramField8 = new ParameterField();
        ParameterDiscreteValue discreteVal1 = new ParameterDiscreteValue();
        ParameterDiscreteValue discreteVal2 = new ParameterDiscreteValue();
        ParameterDiscreteValue discreteVal3 = new ParameterDiscreteValue();
        ParameterDiscreteValue discreteVal4 = new ParameterDiscreteValue();
        ParameterDiscreteValue discreteVal5 = new ParameterDiscreteValue();
        ParameterDiscreteValue discreteVal6 = new ParameterDiscreteValue();
        ParameterDiscreteValue discreteVal7 = new ParameterDiscreteValue();
        ParameterDiscreteValue discreteVal8 = new ParameterDiscreteValue();
        ParameterRangeValue rangeVal = new ParameterRangeValue();
        // 设置参数字段的名称，它必须
        //和报表中的参数相符。
        paramField1.ParameterFieldName = "year";
        paramField2.ParameterFieldName = "month";
        paramField3.ParameterFieldName = "day";
        paramField4.ParameterFieldName = "Hour";
        paramField5.ParameterFieldName = "Minute";
        paramField6.ParameterFieldName = "sname";
        paramField7.ParameterFieldName = "Amount";
        paramField8.ParameterFieldName = "CNAmount";
        // 设置第一个离散值并将其传递给该参数。
        discreteVal1.Value = dt.Rows[0]["TIME"].ToString().Substring(0, 4);
        discreteVal2.Value = dt.Rows[0]["TIME"].ToString().Substring(4, 2);
        discreteVal3.Value = dt.Rows[0]["TIME"].ToString().Substring(6, 2);
        discreteVal4.Value = dt.Rows[0]["TIME"].ToString().Substring(8, 2);
        discreteVal5.Value = dt.Rows[0]["TIME"].ToString().Substring(10, 2);
        discreteVal6.Value = dt.Rows[0]["name"].ToString();
        string Amount = (Convert.ToDouble(dt.Rows[0]["PRC"].ToString()) * Convert.ToDouble(dt.Rows[0]["VOL"].ToString())).ToString();
        decimal AmountN = 0;
        discreteVal8.Value = PublicClass.ConvertToCn(Amount,out AmountN);
        discreteVal7.Value = AmountN;
        paramField1.CurrentValues.Add(discreteVal1);
        paramField2.CurrentValues.Add(discreteVal2);
        paramField3.CurrentValues.Add(discreteVal3);
        paramField4.CurrentValues.Add(discreteVal4);
        paramField5.CurrentValues.Add(discreteVal5);
        paramField6.CurrentValues.Add(discreteVal6);
        paramField7.CurrentValues.Add(discreteVal7);
        paramField8.CurrentValues.Add(discreteVal8);
        // 将该参数添加到参数字段集合。
        paramFields.Add(paramField1);
        paramFields.Add(paramField2);
        paramFields.Add(paramField3);
        paramFields.Add(paramField4);
        paramFields.Add(paramField5);
        paramFields.Add(paramField6);
        paramFields.Add(paramField7);
        paramFields.Add(paramField8);      
        // 将参数字段集合放入查看器控件。 
        CrystalReportViewer1.ReportSource = customerReport;
        this.CrystalReportViewer1.ParameterFieldInfo = paramFields;

        //设置成   139.7   x   215.9   毫米的纸张，也就是“半刀纸”,约   A4   的一半。   
        customerReport.PrintOptions.PaperSize = CrystalDecisions.Shared.PaperSize.PaperStatement;
        //设置报表方向为横向，注意系统没有真正的“半刀纸”，只有把上述纸张横着看才符合要求。打印时不需要设置为横打   
        customerReport.PrintOptions.PaperOrientation = CrystalDecisions.Shared.PaperOrientation.Landscape;
       
        CrystalReportViewer1.HasCrystalLogo = false;
        CrystalReportViewer1.HasToggleGroupTreeButton = false;
        CrystalReportViewer1.HasViewList = false;
        try
        {
            //CrystalReportViewer1.PrintMode = CrystalDecisions.Web.PrintMode.ActiveX;
            System.Drawing.Printing.PrintDocument printDocument = new System.Drawing.Printing.PrintDocument();
            customerReport.PrintOptions.PrinterName = printDocument.PrinterSettings.PrinterName;
            customerReport.PrintToPrinter(1, true, 0, 0);
        }
        catch
        {
        }

上一个：c# 用linq方法怎么通过datagridview修改数据?
下一个：javascript的语法和C#怎么那么像呢?