private void button2_Click(object sender, EventArgs e)
{
Contacts.Service1 ser = new Contacts.Service1();
BindingSource b = new BindingSource();
b.DataSource = ser.SearchCbyEmail(myUtill.loginUser.Userid, cmbCon.SelectedValue.ToString(), txtEMAIL.Text);
gvCon.DataSource = b;
}