private void button1_Click(object sender, EventArgs e)
{
localhost.Service1 service = new localhost.Service1();
bool isvalidSub;
bool isvalidsubject;
service.isValidSubject(cmbsubject.Text, out isvalidsubject, out isvalidSub);
BindingSource source = new BindingSource();
if (isvalidsubject)
{
service.ShowBySubject(cmbsubject.Text);
source.DataSource = service.ShowBySubject(cmbsubject.Text);
dataGridView1.DataSource = source;
}
else
{
MessageBox.Show("Subject Not Registered");
}
}