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Check vehice == null khi api trả về null

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This commit is contained in:
Le Chau 2020-06-25 10:42:26 +07:00
parent effa22abc9
commit b71846e3c9
1 changed files with 4 additions and 0 deletions
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4
AIParkingApplication/Statistic.cs
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@ -44,6 +44,10 @@ namespace AIParkingApplication
HttpResponseMessage response = await client.GetAsync("/api/statistics"); HttpResponseMessage response = await client.GetAsync("/api/statistics");
response.EnsureSuccessStatusCode(); response.EnsureSuccessStatusCode();
var vehicle = await response.Content.ReadAsAsync<Vehicle>(); var vehicle = await response.Content.ReadAsAsync<Vehicle>();
if(vehicle == null)
{
return;
}
lblSoLuongXeMay.Invoke(new Action(() => lblSoLuongXeMay.Invoke(new Action(() =>
{ {
lblSoLuongXeMay.Text = vehicle.NumberOfMoto.ToString(); lblSoLuongXeMay.Text = vehicle.NumberOfMoto.ToString();