private void button8_Click(object sender, EventArgs e)
 {
     LogicMy.DelFromGridInDb(dataGridView2, "Contacts");
     UpdateContactsGrid();
 }
 private void button1_Click(object sender, EventArgs e)
 {
     LogicMy.DelFromGridInDb(dataGridView1, "Cannels");
     UpdateGrid();
 }
 /// <summary>
 /// Обработчик кнопки удалить.
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void button8_Click_1(object sender, EventArgs e)
 {
     LogicMy.DelFromGridInDb(dataGridView2, "group_contacts");
     UpdateGridGr();
 }