private void btnDel_Click(object sender, EventArgs e)
{
ModelList models = ModelList.getInstance();
foreach (DataGridViewCell cell in _dgv.SelectedCells)
{
int idModel = 0;
int.TryParse(_dgv.Rows[cell.RowIndex].Cells[0].Value.ToString(), out idModel);
models.Delete(idModel);
}
loadModel();
}
