[英]Crystal report viewer giving me error : “Invalid Argument provided. Failed to open a rowset.”
我有一個水晶報表,將用存儲過程填充,但是當我將過程的任何參數放在.rpt文件中時,它給我的錯誤是
“提供了無效的參數。無法打開行集。”
我的代碼如下:
public void GroupwiseRegistrationReport()
{
SqlConnection connection;
DataSet ds = new DataSet();
DataTable dt = new DataTable();
connection = gen.con;
string SP = "";
SqlCommand command = connection.CreateCommand();
SqlTransaction transaction = null;
try
{
connection.Open();
transaction = connection.BeginTransaction();
if (rblReportFrom.SelectedValue == "0")
{
SP = "SPGroupwiseIndustriesEM1Report";
}
else
{
SP = "SPGroupwiseIndustriesEM2Report";
}
ValueData = new ArrayList();
ParameterData[0] = "@fromdate";
ValueData.Add(txtTotalBetweenFrom.Text.ToString().Trim());
ParameterData[1] = "@todate";
ValueData.Add(txtTotalBetweenTo.Text.ToString().Trim());
ds = gen.FunSearch_Trans(ParameterData, ValueData, SP, transaction, command);
dt = ds.Tables[0];
if (ds.Tables[0].Rows.Count > 0)
{
if (rblReportFrom.SelectedValue == "0")
{
repdoc.Load(Server.MapPath("~\\admin\\Reports\\Groupwise-EM-I-Registration-Report.rpt"));
}
else
{
repdoc.Load(Server.MapPath("~\\admin\\Reports\\Groupwise-EM-II-Registration-Report.rpt"));
}
repdoc.SetDataSource(ds.Tables[0]);
configureCrystalReports();
crvMSMEReportViewer.ReportSource = repdoc;
//Response.Buffer = true;
//Response.ClearContent();
//Response.ClearHeaders();
//repdoc.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, true, "Exported Report");
tablereportviewer.Visible = true;
}
else
{
tablereportviewer.Visible = false;
message("No Records Found.");
}
transaction.Commit();
}
catch (Exception ex)
{
tablereportviewer.Visible = false;
error.LogError(ex);
transaction.Rollback();
}
finally
{
connection.Close();
}
}
我錯過了什么還是我想不通的請幫幫我..
哪個是處理水晶報表的最佳方法,是使用數據集還是直接存儲過程?
更新資料
我像下面那樣更改了代碼,但現在卻給了我這樣的消息:“缺少參數值。”。 但我只有兩個要傳遞的參數是“ @fromdate”和“ @todate”
這是一個代碼片段:
doc = new ReportDocument();
doc.Load(Server.MapPath("~\\admin\\Reports\\Groupwise-EM-II-Registration-Report.rpt"));
doc.SetDatabaseLogon(ConfigurationManager.AppSettings["userName"], ConfigurationManager.AppSettings["pwd"], ConfigurationManager.AppSettings["serverName"], "databaseName", false);
doc.SetParameterValue("@fromdate", txtTotalBetweenFrom.Text.ToString());
doc.SetParameterValue("@todate", txtTotalBetweenTo.Text.ToString());
crvMSMEReportViewer.ReportSource = doc;
crvMSMEReportViewer.RefreshReport();
protected void Page_Load(object sender, EventArgs e)
{
if (Session["ReportDataSet"] != null)
{
crvAccountReportParameter.ReportSource = (ReportDocument)Session["ReportDataSet"];
}
}
private void LoadReport()
{
doc = new ReportDocument();
DataSet dsData = null;
dsData = objAccountReportBAL.getAccountRegister(txtTotalBetweenFrom.Text.ToString(), txtTotalBetweenTo.Text.ToString());
doc.Load(Server.MapPath("CrSalesReport.rpt"));
doc.SetDataSource(dsData.Tables[0]);
Session["ReportDataSet"] = rptDoc;
crvAccountReportParameter.ReportSource = rptDoc;
crvAccountReportParameter.DataBind();
}
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