Server Error in '/' Application.

Unrecognized Guid format.

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.FormatException: Unrecognized Guid format.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[FormatException: Unrecognized Guid format.]
   System.GuidResult.SetFailure(ParseFailureKind failure, String failureMessageID, Object failureMessageFormatArgument, String failureArgumentName, Exception innerException) +4142708
   System.Guid.TryParseGuid(String g, GuidStyles flags, GuidResult& result) +534
   System.Guid..ctor(String g) +137
   DicleEduTr_2020.DepartmentDefault.Page_Load(Object sender, EventArgs e) in C:\Users\initi\source\repos\DicleEduTr-2020\DicleEduTr-2020\DepartmentDefault.aspx.cs:98
   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:4.7.3690.0