Question

我使用Oracle 11g＆amp; amp ;;在C＃4.0中开发了一个桌面应用程序。用于VS 2010的Crystal报告

它执行＆amp;在开发机器和运行中运行良好我创建了一个设置文件

在客户端系统中我安装了oracle客户端和我的应用程序的安装文件

能够很好地使用该应用程序，直到我生成任何水晶报告。它显示以下屏幕截图

enter image description here

   at System.Windows.Forms.Form.OnCreateControl()
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WmShowWindow(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

2即使我点击继续询问我的服务器用户名＆amp;密码如下

enter image description here

private void VisitorIDReportWindow_Load(object sender, EventArgs e)
    {
        if (this.CON.State.Equals(System.Data.ConnectionState.Open))
        {
            CON.Close();
        }
        CON.Open();

        DataTable DTB;
        string query1 = "Select * from VMS_VISITOR where PASSNUMBER ='" + VisitorCreationWindow.PNBR + "'";

        using (OLCMND1 = new OracleCommand(query1, CON))
        {
            using (OADAP1 = new OracleDataAdapter(OLCMND1))
            {
                DTB = new DataTable();
                OADAP1.Fill(DTB);
            }
        }

        RDT = new ReportDocument();
        string reportpath = System.Windows.Forms.Application.StartupPath.Substring(0,System.Windows.Forms.Application.StartupPath.Substring(0,System.Windows.Forms.Application.StartupPath.LastIndexOf("\\")).LastIndexOf("\\"));
        reportpath += @"\VisitorIDReport.rpt";   //string reportpath = "D:\\Visitor Management System\\Visitor Management System\\VisitorIDReport.rpt";
        RDT.Load(reportpath);

        ConnectionInfo connectioninfo = new ConnectionInfo();
        connectioninfo.DatabaseName = "ORCL";
        connectioninfo.UserID = "itapps";
        connectioninfo.Password = "it123";

        Logindetailforreport(connectioninfo,RDT);
        VisitorIDCrystalReportViewer.ReportSource = RDT;

        RDT.SetDataSource(DTB);            
    }

对于第一个屏幕，我无法理解......

请帮助。

Answer 1

要获取包含当前程序的目录，最好执行以下操作：

System.IO.Path.GetDirectory(System.Reflection.Assembly.Ge‌tExecutingAssembly().Location)

由于您在该目录中有一个要加载的文件，因此更清晰/更易读的方法是这样的：

string directoryContainingTheExecutable = System.IO.Path.GetDirectory(System.Reflection.Assembly.Ge‌tExecutingAssembly().Location);
string reportPath = System.IO.Path.Combine(directoryContainingTheExecutable, "VisitorIDReport.rpt");

组合功能可确保路径正确组装。这意味着你不必担心像C：\ Program Files \ MyProgram \ MyFile.rpt这样的东西。或者，如果您的程序在Linux环境中使用，则不必使用forwardslashes替换所有反斜杠。

在客户端计算机中收到Crystal Report错误

1 个答案: