private void reading()
{
cdata.personnelDb personnel = new cdata.personnelDb();
List <cmetier.Personnel> list_personnel = personnel.sendReqInfo();
dgv_personnel.Rows.Clear();
foreach (cmetier.Personnel pers in list_personnel)
{
dgv_personnel.Rows.Add(pers.Id_salarie, pers.Nom, pers.Prenom, pers.Type_service, pers.Mail);
}
}
void Button_personnel_deleteClick(object sender, EventArgs e)
{
cdata.personnelDb personnel = new cdata.personnelDb();
int selectedrowindex = dgv_personnel.SelectedCells[0].RowIndex;
DataGridViewRow selectedRow = dgv_personnel.Rows[selectedrowindex];
string id = Convert.ToString(selectedRow.Cells[0].Value);
personnel.deleteSalarie(id);
reading();
}