private void label2_Click_1(object sender, EventArgs e)
 {
     edit           = new TeacherEditAcc(NIK);
     edit.BackColor = this.BackColor;
     edit.Show();
     this.Hide();
 }
 private void pictureBox1_Click(object sender, EventArgs e)
 {
     edit           = new TeacherEditAcc(NIK);
     edit.BackColor = this.BackColor;
     edit.Show();
     this.Hide();
 }