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9.0

Datareader Invalid Attempt to read when no data is present

Asked by Scripter25 in Programming for ASP.NET, .NET Framework 2.x, C# Programming Language

Tags: data, read, attempt, when, invalid

Why am I getting this message I checked the sql behind it and it is returning one row and there is a value in the first column so it should work with no problem.

        SqlConnection sqlConnection1 = new SqlConnection("Data Source=.\\SQLEXPRESS;AttachDbFilename=|DataDirectory|\\ASPNETDB.mdf;Integrated Security=True;User Instance=True");
        SqlCommand cmd = new SqlCommand();
        MembershipUser myObject = Membership.GetUser();
        string userIDD = myObject.ProviderUserKey.ToString();
        cmd.CommandText = "GetCustInfo";
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Connection = sqlConnection1;
        cmd.Parameters.AddWithValue("@userID", userIDD);
        sqlConnection1.Open();
        SqlDataReader DReader = cmd.ExecuteReader();
       
        profile_ID = Convert.ToInt32(DReader.GetValue(0));

The error I am getting is "Invalid Attempt to read when no data is present" and it is on
profile_ID = Convert.ToInt32(DReader.GetValue(0));

Here is the extended error


System.InvalidOperationException was unhandled by user code
  Message="Invalid attempt to read when no data is present."
  Source="System.Data"
  StackTrace:
       at System.Data.SqlClient.SqlDataReader.GetValue(Int32 i)
       at GetCustomerProfile.GetCustProfile(String UserID) in c:\Documents and Settings\Scott\My Documents\Visual Studio 2005\WebSites\AjaxSigns2\App_Code\GetCustomerProfile.cs:line 157
       at GetCustomerProfile..ctor(String UserID) in c:\Documents and Settings\Scott\My Documents\Visual Studio 2005\WebSites\AjaxSigns2\App_Code\GetCustomerProfile.cs:line 26
       at storeCheckout.Wizard1_FinishButtonClick1(Object sender, WizardNavigationEventArgs e) in c:\Documents and Settings\Scott\My Documents\Visual Studio 2005\WebSites\AjaxSigns2\storeCheckout.aspx.cs:line 151
       at System.Web.UI.WebControls.Wizard.OnFinishButtonClick(WizardNavigationEventArgs e)
       at System.Web.UI.WebControls.Wizard.OnBubbleEvent(Object source, EventArgs e)
       at System.Web.UI.WebControls.Wizard.WizardChildTable.OnBubbleEvent(Object source, EventArgs args)
       at System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args)
       at System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e)
       at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
       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(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
[+][-]08/29/07 11:05 PM, ID: 19797765Accepted Solution

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About this solution

Zones: Programming for ASP.NET, .NET Framework 2.x, C# Programming Language
Tags: data, read, attempt, when, invalid
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Solution Provided By: JimBrandley
Participating Experts: 2
Solution Grade: A
 
[+][-]08/29/07 11:14 PM, ID: 19797804Assisted Solution

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[+][-]08/29/07 11:19 PM, ID: 19797823Author Comment

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[+][-]08/29/07 11:24 PM, ID: 19797836Expert Comment

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[+][-]08/29/07 11:30 PM, ID: 19797857Author Comment

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[+][-]08/30/07 12:18 AM, ID: 19798019Expert Comment

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