//function to load stock symbol on button click
        private void button2_Click(object sender, EventArgs e)
        {
            ServiceReference1.ServiceClient sc = new ServiceReference1.ServiceClient();
            String sym = StockSymbol.Text;

            if (sym != "")
            {
                String SymResult = sc.getStockquote(sym);
                if (Convert.ToDouble(SymResult) == 0.00)
                {
                    label2.Text = "Please Enter a Valid Symbol";
                }
                else
                {
                    label2.Text = SymResult;
                }
            }
            else
            {
                label2.Text = "Please Enter a Symbol";
            }
        }
 //function to load stock symbol on Enter
 private void StockSymbol_KeyPress(object sender, KeyPressEventArgs e)
 {
     if (Convert.ToInt32(e.KeyChar) == 13)
     {
         ServiceReference1.ServiceClient sc = new ServiceReference1.ServiceClient();
         String sym = StockSymbol.Text;
         if (sym != "")
         {
             String SymResult = sc.getStockquote(sym);
             if (Convert.ToDouble(SymResult) == 0.00)
             {
                 label2.Text = "Please Enter a Valid Symbol";
             }
             else
             {
                 label2.Text = SymResult;
             }
         }
         else
         {
             label2.Text = "Please Enter a Symbol";
         }
     }
 }