private void btn_update_Click(object sender, EventArgs e)
{
bool updateCon;
bool updateConR;
Contacts.Service1 s = new Contacts.Service1();
s.UpdateContacts(txtId.Text, txtName.Text, txtDOB.Text,
txtMOB.Text, txtEMAIL.Text, txtADR.Text, out updateCon, out updateConR);
BindingSource bs = new BindingSource();
bs.DataSource = s.GetCon();
gvCon.DataSource = bs;
lblmsg.Text = "Successfully Updated ";
}