From b71846e3c945a3033b5728c8f05cabafe4c8d33d Mon Sep 17 00:00:00 2001
From: Le Chau <chaulh@beetinnovators.com>
Date: Thu, 25 Jun 2020 10:42:26 +0700
Subject: [PATCH] =?UTF-8?q?Check=20vehice=20=3D=3D=20null=20khi=20api=20tr?=
 =?UTF-8?q?=E1=BA=A3=20v=E1=BB=81=20null?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 AIParkingApplication/Statistic.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/AIParkingApplication/Statistic.cs b/AIParkingApplication/Statistic.cs
index c63b46d..67642f3 100644
--- a/AIParkingApplication/Statistic.cs
+++ b/AIParkingApplication/Statistic.cs
@@ -44,6 +44,10 @@ namespace AIParkingApplication
                 HttpResponseMessage response = await client.GetAsync("/api/statistics");
                 response.EnsureSuccessStatusCode();
                 var vehicle = await response.Content.ReadAsAsync<Vehicle>();
+                if(vehicle == null)
+                {
+                    return;
+                }
                 lblSoLuongXeMay.Invoke(new Action(() =>
                 {
                     lblSoLuongXeMay.Text = vehicle.NumberOfMoto.ToString();