database access(enterprisedb)

Discussion in 'Software' started by kanchuparthi.rams, May 30, 2008.

  1. kanchuparthi.rams

    kanchuparthi.rams

    Joined:
    May 22, 2008
    Messages:
    2
    I am using enterprisedb as my backend and VB dotnet 2003 is the frent end
    while i accessing the database i got the error below


    A system error has occurred. Please contact your System Administrator.


    Click here to return to the previous screen.

    System Message details:

    Error Message: Object reference not set to an instance of an object.
    Page URL: http://localhost/example/forms/login.aspx
    Stack Trace:
    at EnterpriseDB.EDBClient.EDBCommand.ExecuteReader(CommandBehavior cb)
    at example.Framework.Data.OltpDatabases.DatabaseConnectString(String DatabaseID) in C:\Inetpub\wwwroot\example\classes\example.Framework.Data.vb:line 46
    at example.Framework.Data.OltpEngine.get_ConnectString(String DatabaseID) in C:\Inetpub\wwwroot\example\classes\example.Framework.Data.vb:line 99
    at example.Framework.Data.OltpEngine.GetDataCommand(String Sql, String DatabaseID) in C:\Inetpub\wwwroot\example\classes\example.Framework.Data.vb:line 164
    at example.Framework.Business.Operator.Login(String OperatorUserName, String OperatorUserPassword, Boolean& ExistsButNotActive) in C:\Inetpub\wwwroot\example\classes\example.Framework.Business.Operator.vb:line 141
    at example.Controls.ucLogin.btnSubmit_Click(Object sender, EventArgs e) in C:\Inetpub\wwwroot\example\controls\ucLogin.ascx.vb:line 57
    at System.Web.UI.WebControls.Button.OnClick(EventArgs e)
    at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
    at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
    at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
    at System.Web.UI.Page.ProcessRequestMain()


    regards
    rams
     
    kanchuparthi.rams, May 30, 2008
    #1
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