System.NullReferenceException: Object reference not set to an instance of an object.
at TDE.Modules.CourseDetails2018.View.updateCourseSummaryView(CourseDetailDto Coursedetails)
at TDE.Modules.CourseDetails2018.View.searchCourseById()
at TDE.Modules.CourseDetails2018.View.Page_Load(Object sender, EventArgs e)