未指定报告来源

Question

嗨，我正在使用微型软件报告查看器进行报告，但是在代码之后，我得到了一个错误，即未指定报告的来源...这是我的代码

  

this.reportViwer1.LocalReport.DataSources.Clear（）;               this.purReturnReport.RefreshReport（）;

        DMSUtilities.Reports.PurchaseReports.PurchaseDataSet pds = new PurchaseDataSet();
        Microsoft.Reporting.WinForms.ReportDataSource reportDataSource1 = new

     

Microsoft.Reporting.WinForms.ReportDataSource（）;               reportDataSource1.Name =“ DataSet1”;               reportDataSource1.Value = pds.purReturnHeader;

        Microsoft.Reporting.WinForms.ReportDataSource reportDataSource2 = new

     

Microsoft.Reporting.WinForms.ReportDataSource（）;               reportDataSource2.Name =“ DataSet2”;               reportDataSource2.Value = pds.purReturnItemDetails;

        pds.purReturnHeader.AddpurReturnHeaderRow(pRHdr.SupplierName,pRHdr.SupplierCode,pRHdr.ReturnDate,pRHdr.DocNo,pRHdr.NetAmount);


        if(this.purchaseReturnitems != null)
        {
            foreach(var item in this.purchaseReturnitems)
            {
                if(item.SNo != 0 && item.ItemCode != "")
                {
                    pds.purReturnItemDetails.AddpurReturnItemDetailsRow(item.SNo.ToString(),item.ItemCode,item.ItemName,item.Quantity.ToString(),item.UnitPrice.ToString(),item.NetAmount.ToString(),item.AvailableQuantity.ToString());
                }
            }
        }


        this.reportViwer1.LocalReport.DataSources.Add(reportDataSource1);
        this.reportViwer1.LocalReport.DataSources.Add(reportDataSource2);
        this.reportViwer1.RefreshReport();