private void btnDelete_Click(object sender, EventArgs e)
{
//get the ID from an application
S.ID = Convert.ToInt32(txtID.Text);
bool success = S.DeleteSession(S);
if (success == true)
{
MessageBox.Show("Successfully Deleted.");
//refresh the gridview
DataTable dt = S.Select();
dataGridView1.DataSource = dt;
Clear();
}
else
{
MessageBox.Show("Failed to Delete.Try Again.");
}
}