Server Error in '/' Application.

Invalid attempt to access a field before calling Read()

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: MySql.Data.MySqlClient.MySqlException: Invalid attempt to access a field before calling Read()

Source Error:


Line 501:            MySqlDataReader oku = komut.ExecuteReader();
Line 502:            oku.Read();
Line 503:          bironcekisayisi  = Convert.ToInt32(oku["trisimsayi"]);
Line 504:            busenesayisi = Convert.ToInt32(oku["trisimsayisi2021"]);
Line 505:

Source File: c:\Inetpub\vhosts\onlinesoru.com\bebekisimler\Detail.aspx.cs    Line: 503

Stack Trace:


[MySqlException (0x80004005): Invalid attempt to access a field before calling Read()]
   MySql.Data.MySqlClient.ResultSet.get_Item(Int32 index) +284
   MySql.Data.MySqlClient.MySqlDataReader.GetFieldValue(Int32 index, Boolean checkNull) +42
   MySql.Data.MySqlClient.MySqlDataReader.GetValue(Int32 i) +68
   MySql.Data.MySqlClient.MySqlDataReader.get_Item(String name) +28
   Detail.sayikontrol() in c:\Inetpub\vhosts\onlinesoru.com\bebekisimler\Detail.aspx.cs:503
   Detail.Page_Load(Object sender, EventArgs e) in c:\Inetpub\vhosts\onlinesoru.com\bebekisimler\Detail.aspx.cs:28
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3770.0