private void AssignClicked(object sender, EventArgs e) { CourseAssign s = new CourseAssign(); string[] acc = this.comboBoxAccount.Text.Split(' '); s.AccountId = acc[0]; s.AssignedCourse = this.comboBoxAssignedCourse.Text; s.Section = this.comboBoxSection.Text; s.Semester = this.comboBoxSemesterName.Text; Course c = new Course(); c.Name = this.comboBoxAssignedCourse.Text; c.Section = this.comboBoxSection.Text; c.Semester = this.comboBoxSemesterName.Text; CourseAssignRepository aRepo = new CourseAssignRepository(); CourseRepository cRepo = new CourseRepository(); if (cRepo.CheckCourse2(c)) { if (aRepo.CheckAssignedCourse2(s)) { if (aRepo.Insert2(s)) { MessageBox.Show("One Course Assigned", "Successful"); } else { MessageBox.Show("Operation Failed", "Failed"); } } else { MessageBox.Show("Already Exists", "Failed"); } } else { MessageBox.Show("Invalid Course", "Failed"); } }