private void Add_Trainess_Click(object sender, EventArgs e)
{
AddTrainessForm f_atf = new AddTrainessForm();
f_atf.ShowDialog();
updatData();
}
private void Edit_Trainess_Click(object sender, EventArgs e)
{
if (dgv_Trainess.SelectedRows.Count > 0)
{
TrainessClass trainess = dgv_Trainess.SelectedRows[0].Tag as TrainessClass;
AddTrainessForm f_at = new AddTrainessForm(trainess);
f_at.ShowDialog();
updatData();
}
}