private void btnClient_Click(object sender, EventArgs e)
{
int refclient = Convert.ToInt32(cboRefClient.Text);
clsAgent agent = new clsAgent();
agent = admin.Searched_Agent_with_RefClient(refclient);
agent_list = new List <clsAgent>();
agent_list.Add(agent);
if (agent.RefAgent != 0)
{
gridAll.DataSource = agent_list;
}
else
{
MessageBox.Show("There is no result for given condition.", "NO RESULT");
}
}