private void btn_add_Click(object sender, EventArgs e)
        {
            FormInput_Pendidikan input = new FormInput_Pendidikan(data[ListIndex][0]);

            input.ShowDialog();
            LoadListView();
        }
        private void button_adduser_Click(object sender, EventArgs e)
        {
            FormInput_Pendidikan input = new FormInput_Pendidikan(data_kel[0]);

            input.ShowDialog();
        }