问题描述

我正在尝试显示一些 report，其中包含一些 subreports，但每次显示报告时都会抛出一些对话框，询问数据库连接.我正在使用此代码:

I'm trying to display some report with some subreports inside it, but every it shows the report it throws some dialog box asking for database connection. I'm using this code:

private void frmReporte_Load(object sender, System.EventArgs e)
    {
        Clave = ConfigurationSettings.AppSettings["Password"].ToString();
        NombreBD = ConfigurationSettings.AppSettings["CatalogBD"].ToString();
        NombreServidor = ConfigurationSettings.AppSettings["Servidor"].ToString(); ;
        UsuarioBD = ConfigurationSettings.AppSettings["UserID"].ToString();
        this.crtReportes.ReportSource = this.prepareReport();
    }
    public void imprimirReporte()
    {
        ReportDocument rpt = new ReportDocument();
        rpt.Load(mvarRutaReporte);
        rpt.SetDataSource(clsReportes.dsReporte);
        rpt.PrintToPrinter(1, false, 1, 1);
    }
    private ReportDocument prepareReport()
    {
        Sections crSections;
        ReportDocument crReportDocument, crSubreportDocument;
        SubreportObject crSubreportObject;
        ReportObjects crReportObjects;
        ConnectionInfo crConnectionInfo;
        Database crDatabase;
        Tables crTables;
        TableLogOnInfo crTableLogOnInfo;
        crReportDocument = new ReportDocument();
        crReportDocument.Load(RutaReporte);
        crReportDocument.SetDataSource(clsReportes.dsReporte.Tables[0]);
        crDatabase = crReportDocument.Database;
        crTables = crDatabase.Tables;
        crConnectionInfo = new ConnectionInfo();
        crConnectionInfo.ServerName = NombreServidor ;
        crConnectionInfo.DatabaseName = NombreBD;
        crConnectionInfo.UserID = UsuarioBD;
        crConnectionInfo.Password = Clave;
        foreach (CrystalDecisions.CrystalReports.Engine.Table aTable in crTables)
        {
            crTableLogOnInfo = aTable.LogOnInfo;
            crTableLogOnInfo.ConnectionInfo = crConnectionInfo;
            aTable.ApplyLogOnInfo(crTableLogOnInfo);
        }
        // Para los reportes que poseen subreportes 
        // pongo el objeto seccion del la seccion actual del reporte 
        crSections = crReportDocument.ReportDefinition.Sections;
        // busco en todas las secciones el objeto reporte
        foreach (Section crSection in crSections)
        {
            crReportObjects = crSection.ReportObjects;
            //busco en todos los reportes por subreportes
            foreach (ReportObject crReportObject in crReportObjects)
            {
                if (crReportObject.Kind == ReportObjectKind.SubreportObject)
                {
                    crSubreportObject = (SubreportObject)crReportObject;
                    //abro el subreporte y me logeo con los datos del reporte general
                    crSubreportDocument = crSubreportObject.OpenSubreport(crSubreportObject.SubreportName);
                    crDatabase = crSubreportDocument.Database;
                    crTables = crDatabase.Tables;
                    foreach (CrystalDecisions.CrystalReports.Engine.Table aTable in crTables)
                    {
                        crTableLogOnInfo = aTable.LogOnInfo;
                        crTableLogOnInfo.ConnectionInfo = crConnectionInfo;
                        aTable.ApplyLogOnInfo(crTableLogOnInfo);
                    }
                }
            }
        }
        return crReportDocument;
    }

推荐答案

我遇到了类似的问题，现在已经解决了，所以我添加了这个回复，以防它可能对我遇到的其他人有所帮助.

I had a similar problem and it is solved now, so I'm adding this reply in case it might help someone else in my situation.

在为报告设置 SQL Server 登录信息时，请确保包含 服务 名称.因此，例如，请确保您为 Crystal 提供myservermyservice"，而不仅仅是myserver".

When setting the SQL Server login info for the report, make sure you include the service name. So, for example, make sure you're giving Crystal "myservermyservice" instead of just "myserver".

我的程序能够仅使用myserver"从 SQL Server 访问数据，但需要为 Crystal 提供myservermyservice".

My program is able to access data from SQL Server using just "myserver", but Crystal needs to be given "myservermyservice".

这篇关于带有水晶报表的数据库登录提示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！