Question

我有一个本地的.rdlc报告，可以点击按钮显示，但由于某种原因，报告只显示第二个按钮点击事件。我不知道为什么报告没有显示在第一个按钮点击...这是我在按钮的点击事件上调用的函数。

private void ShowReport(string accountingCompanyId, string companyId, string approvalUnitId, DateTime startDate, DateTime finishDate, string supplierId,
                    string documentNumber, string documentType, string documentState, string costCenterId, string chargingKeyId,
                    string dim1Value, string dim1Description, string dim1Id, string dim2Value, string dim2Description, string dim2Id,
                    string dim3Value, string dim3Description, string dim3Id, bool showDetails) {

        //this.ReportViewer1.Reset();

        //Set report mode for local processing.
        this.ReportViewer1.ProcessingMode = ProcessingMode.Local;

        ISettingsReader settingsReader = SettingsReaderFactory.Instance.CreateSettingsReader();
        this.ReportViewer1.LocalReport.ReportPath = settingsReader.GetSetting("ReportViewer", "FinancialReportPath" + (showDetails ? "" : "Small"), true, null);

        ReportsBL reports = new ReportsBL();

        // Clear out any previous datasources.
        this.ReportViewer1.LocalReport.DataSources.Clear();

        // Load the company dataSource.
        DataTable company = reports.GetCompanyDataSet(accountingCompanyId).Tables[0];
        ReportDataSource dataSourceCompany = new ReportDataSource(company.TableName, company);
        this.ReportViewer1.LocalReport.DataSources.Add(dataSourceCompany);

        // Load the dataSource.
        DataTable report = reports.GetReportFinanceiroSmallDataSet(companyId, startDate, finishDate, chargingKeyId, costCenterId, documentNumber, documentType, dim1Value, dim2Value, dim3Value, dim1Id, dim2Id, dim3Id, supplierId, approvalUnitId, documentState, accountingCompanyId).Tables[0];
        ReportDataSource dataSourceReport = new ReportDataSource(report.TableName, report);
        this.ReportViewer1.LocalReport.DataSources.Add(dataSourceReport);

        this.ReportViewer1.LocalReport.Refresh();

        this.pnlReport.Visible = true;
    }

奇怪的是，如果我取消注释this.ReportViewer.Reset（）;然后，无论我生成的点击次数如何，报告都不会显示...有人知道这是否正常？如何解决这个问题呢？提前谢谢，

Answer 1

我想问题可能是在呈现页面后触发了click事件。尝试在Page_Load事件中调用该方法。

protected void Page_Load(object sender, EventArgs e)
{
    if (IsCallback)
    {
        ShowReport(
            // params
        );
    }
}

如果可行，您知道它与执行顺序有关。

Answer 2

我从来没有调用过ReportViewer.DataBind（）;以下是我通常做的事情：

IEnumerable<ReportClass> ds = DataTranslator.GetReportData(Int64.Parse(<someId>));
report.LocalReport.ReportPath = "<some_path_to_report.rdlc>";
report.LocalReport.DataSources.Add(new ReportDataSource("DataSet", ds));
report.Visible = true;
report.LocalReport.Refresh();

Answer 3

试试这段代码：

  protected void btnSubmit_Click(object sender, EventArgs e)
        {
            string pstrType;
            pstrType = Request.QueryString["Type"];           
            LoadReport();
        }

        public class CustomReportCredentials : Microsoft.Reporting.WebForms.IReportServerCredentials
        {
            // local variable for network credential.
            private string _UserName;
            private string _PassWord;
            private string _DomainName;
            public CustomReportCredentials(string UserName, string PassWord, string DomainName)
            {
                _UserName = UserName;
                _PassWord = PassWord;
                _DomainName = DomainName;
            }
            public System.Security.Principal.WindowsIdentity ImpersonationUser
            {
                get
                {
                    return null;  // not use ImpersonationUser
                }
            }
            public System.Net.ICredentials NetworkCredentials
            {
                get
                {
                    // use NetworkCredentials
                    return new NetworkCredential(_UserName, _PassWord, _DomainName);
                }
            }
            public bool GetFormsCredentials(out Cookie authCookie, out string user, out string password, out string authority)
            {
                // not use FormsCredentials unless you have implements a custom autentication.
                authCookie = null;
                user = password = authority = null;
                return false;
            }
        }

        void LoadReport()
        {
            string strCompanyName = objSession.SelCompanyName;
            string strHeading = "";
            string strBranchName = objSession.SelBranchName;
            rptvwMain.ProcessingMode = ProcessingMode.Remote;
            rptvwMain.ServerReport.ReportServerCredentials = new CustomReportCredentials(AppConfig.ReportServerUserName, AppConfig.ReportServerPassword, AppConfig.ReportServerDomain);
            string strReportServerUrl = AppConfig.ReportServerUrl + AppConfig.ReportServerFolder;
            rptvwMain.ServerReport.ReportServerUrl = new Uri(strReportServerUrl);
            List<ReportParameter> parameters = new List<ReportParameter>();
    if (pstrType == "OB")
            {
                strHeading = "Ledger Opening Balance";
                rptvwMain.ServerReport.ReportPath = "/Account/OpeningBalance";
            }


            parameters.Add(new ReportParameter("FyId", Convert.ToInt16(objSession.FyId).ToString()));
            parameters.Add(new ReportParameter("AccountGroupId", cmbAccountGroup.SelectedValue));
            parameters.Add(new ReportParameter("LedgerId", cmbLedgerId.SelectedValue));
            parameters.Add(new ReportParameter("BranchId", Convert.ToInt64(objSession.BranchId).ToString()));
            parameters.Add(new ReportParameter("StDate", Convert.ToDateTime(RadDtpFromDate.SelectedDate).ToString()));
            parameters.Add(new ReportParameter("EnDate", Convert.ToDateTime(RadDtpToDate.SelectedDate).ToString()));
            parameters.Add(new ReportParameter("CompanyName", strCompanyName.ToString()));
            parameters.Add(new ReportParameter("BranchName", strBranchName.ToString()));
            parameters.Add(new ReportParameter("Heading",strHeading.ToString()));
            rptvwMain.ServerReport.SetParameters(parameters);

            rptvwMain.ServerReport.SetDataSourceCredentials(new[] { new DataSourceCredentials() { Name =AppConfig.ReportServerDataSource , UserId = AppConfig.ReportServerDSUserName, Password = AppConfig.ReportServerDSPassword } });
            rptvwMain.ShowZoomControl = true;
            rptvwMain.ServerReport.Refresh();
        }
    }

SQL Reporting Services报告仅在第二次单击时加载

3 个答案: