Server Error in '/' Application.

Invalid attempt to read when no data is present.

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: System.InvalidOperationException: Invalid attempt to read when no data is present.

Source Error:


Line 29:         SqlDataReader dr_seo = scon.ExecuteReader();
Line 30:         dr_seo.Read();
Line 31:         lbl_title.Text = dr_seo["title"].ToString(); 
Line 32:         string str1 = "", str2 = "", str3 = "", str4 = "", str5 = "";
Line 33:         //بدست آوردن کلمات کلیدی 

Source File: d:\hostingspaces\applehosseini.ir\httpdocs\View.aspx.cs    Line: 31

Stack Trace:


[InvalidOperationException: Invalid attempt to read when no data is present.]
   System.Data.SqlClient.SqlDataReader.CheckDataIsReady(Int32 columnIndex, Boolean allowPartiallyReadColumn, Boolean permitAsync, String methodName) +2742604
   System.Data.SqlClient.SqlDataReader.TryReadColumn(Int32 i, Boolean setTimeout, Boolean allowPartiallyReadColumn) +55
   System.Data.SqlClient.SqlDataReader.GetValueInternal(Int32 i) +42
   System.Data.SqlClient.SqlDataReader.GetValue(Int32 i) +95
   View.Page_Load(Object sender, EventArgs e) in d:\hostingspaces\applehosseini.ir\httpdocs\View.aspx.cs:31
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0