Server Error in '/' Application.

startIndex cannot be larger than length of string.
Parameter name: startIndex

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.ArgumentOutOfRangeException: startIndex cannot be larger than length of string.
Parameter name: startIndex

Source Error:


Line 25:         string Semester = AppLib.GetQueryStringParameterValue_String("Sem");
Line 26: 
Line 27:         Year = Convert.ToInt32( Session.Substring(3, 2));
Line 28:         FillLabels(Class, Session,Semester);
Line 29:         ShowBcom(Class, Session, Semester);

Source File: e:\Websites\OnlineResults\ShowResultSemester.aspx.cs    Line: 27

Stack Trace:


[ArgumentOutOfRangeException: startIndex cannot be larger than length of string.
Parameter name: startIndex]
   System.String.Substring(Int32 startIndex, Int32 length) +13025911
   OnlineResults_ShowResults.Page_Load(Object sender, EventArgs e) in e:\Websites\OnlineResults\ShowResultSemester.aspx.cs:27
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
   System.Web.UI.Control.OnLoad(EventArgs e) +95
   System.Web.UI.Control.LoadRecursive() +59
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +678


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3930.0