小编ukr*_*ine的帖子

这个问题给那些有CR经验的人.

设置与Crystal报表的连接有问题.我收到了客户的报告.数据库的结构在他和我的服务器上是相同的.但是服务器和数据库的名称是不同的.他正在使用"命令"来创建报告(在数据库字段中添加命令 - >数据库专家...).该命令具有一些返回数据的功能.我尝试在我的计算机上运行此报告,当我尝试执行TestConnectivity()时遇到问题.此方法返回false.我尝试调试,我发现在应用ApplyLogOnInfo()之后,内部对象RasTable具有旧的ConnectionInfo.

我正在使用下一个代码进行设置连接:

            private void ApplyConnection(ReportDocument report, ConnectionInfo connectionInfo)
    {
        ApplyLogOnInfo(report, connectionInfo);
        ApplyLogOnInfoForSubreports(report, connectionInfo);
    }

    private void ApplyLogOnInfo(ReportDocument reportDocument, ConnectionInfo connectionInfo)
    {
        foreach (Table table in reportDocument.Database.Tables)
        {
            table.LogOnInfo.ConnectionInfo.AllowCustomConnection = true;
            TableLogOnInfo tableLogonInfo = table.LogOnInfo;
            tableLogonInfo.ConnectionInfo = connectionInfo;
            table.ApplyLogOnInfo(tableLogonInfo);

            _log.InfoFormat("Table connection state: TableName = {0}, IsConnect = {1}", table.Name, table.TestConnectivity());
        }
    }

    private void ApplyLogOnInfoForSubreports(ReportDocument reportDocument, ConnectionInfo connectionInfo)
    {
        Sections sections = reportDocument.ReportDefinition.Sections;
        foreach (Section section in sections)
        {
            ReportObjects reportObjects = section.ReportObjects;
            foreach (ReportObject reportObject in reportObjects) …