private void button9_Click(object sender, EventArgs e) { String error = ""; if (textBox9.Text.Equals("") || textBox10.Text.Equals("") || textBox11.Text.Equals("") || textBox12.Text.Equals("")) { error += "The field can't be empty.\n"; } else { foreach (Student s in students) { if (s.getStudentId() == Convert.ToInt32(textBox11.Text)) { error += "\n-Student Id Already exists."; break; } } if (error == "") { Student s1 = new Student(Convert.ToInt32(textBox11.Text), textBox10.Text, textBox12.Text, textBox9.Text); students.Add(s1.getStudentId(), s1); String text = "Student " + textBox11.Text + " added"; MessageBox.Show(text); } else { MessageBox.Show(error); } } }
public int findStudent(Student p) { Student s = (Student)students[p.getStudentId()]; if (s == null) return 0; return 1; }
public int findStudent(Student p) { Student s = (Student)students[p.getStudentId()]; if (s == null) { return(0); } return(1); }