美好的一天
我认为我目前在客户端使用insert命令遇到了一个奇怪的问题。我可以轻松地在我的其他模型（表格）中创建新条目，但在我的模型中，每次单击创建帐户时，我都会收到错误的请求消息。
后端型号：
public class Person : EntityData
{
[StringLength(20)]
public string Name { get; set; }
[StringLength(20)]
public string Surname { get; set; }
[StringLength(150)]
public string Email { get; set; }
[StringLength(15)]
public string Mobile { get; set; }
[StringLength(15)]
public string Work { get; set; }
[StringLength(14)]
public string Password { get; set; }
[StringLength(80)]
public string Company { get; set; }
public virtual City City { get; set; }
}
客户端控制器：
namespace azuremobile
{
public partial class PersonManager
{
static PersonManager defaultInstance = new PersonManager();
MobileServiceClient client;//Initialize Mobile SDK
IMobileServiceTable<Person> accountTable;
private PersonManager()
{
var handler = new AuthHandler();
//Create our client and pass in Authentication handler
this.client = new MobileServiceClient(
Constants.ApplicationURL, handler);
this.accountTable = client.GetTable<Person>();
}
public static PersonManager DefaultManager
{
get
{
return defaultInstance;
}
private set
{
defaultInstance = value;
}
}
public MobileServiceClient CurrentClient//Provides basic access to azure mobile services
{
get { return client; }
}
public bool IsOfflineEnabled
{
get { return accountTable is Microsoft.WindowsAzure.MobileServices.Sync.IMobileServiceSyncTable<Person>; }
}
public async Task<Person> GetTodoItemsAsync(Expression<Func<Person, bool>> linq)
//public async Task<List<Person>> GetTodoItemsAsync(bool syncItems = false)
{
try
{
// return new List<Person>(await accountTable.ReadAsync());
//List<Person> newUser = await accountTable.Where(linq).Take(1).ToListAsync();
IEnumerable<Person> items = await accountTable
.Where(c => c.Name != null)
.Take(1)
.ToListAsync();
//return newUser.First();
// return await accountTable;
// .Where(c => c.Name != null)
// .Take(1)
// .ToListAsync();
}
catch (MobileServiceInvalidOperationException msioe)
{
Debug.WriteLine(@"Invalid sync operation: {0}", msioe.Message);
}
catch (Exception e)
{
Debug.WriteLine(@"Sync error: {0}", e.Message);
}
return null;
}
public async Task SaveTaskAsync(Person item)
{
// if (item.Id != null)
// await accountTable.InsertAsync(item);
// else
await accountTable.UpdateAsync(item);
}
public async Task CreateTaskAsync(Person item)
{
try
{
await accountTable.InsertAsync(item);
}
catch (MobileServiceInvalidOperationException msioe)
{
Debug.WriteLine(@"INVALID {0}", msioe.Message);
}
catch (Exception e)
{
Debug.WriteLine(@"ERROR {0}", e.Message);
}
}
}
}
客户端注册屏幕：
public partial class SignupScreen : ContentPage
{
PersonManager manager;
public SignupScreen()
{
InitializeComponent();
NavigationPage.SetHasNavigationBar(this, false);
manager = PersonManager.DefaultManager;
LoginClicked.Clicked += async (object sender, EventArgs e) =>
{
var main = new LoginScreen();
Application.Current.MainPage = main;
Navigation.RemovePage(this);
};
}
async Task CreatedNewUser(Person items)
{
try
{
await manager.CreateTaskAsync(items);
}
catch (MobileServiceInvalidOperationException e)
{
await DisplayAlert("Info", e.Message, "Ok");
}
}
public async void OnSignUp(object sender, EventArgs e)
{
string name = this.nameEntry.Text.Trim();
string surname = this.surnameEntry.Text.Trim();
string email = this.emailEntry.Text.Trim();
string company = this.companyEntry.Text.Trim();
string work = this.workEntry.Text.Trim();
string mobile = this.mobileEntry.Text.Trim();
string password = this.passwordEntry.Text.Trim();
if (string.IsNullOrEmpty(name))
{
await DisplayAlert("Info", "Please fill in your name.", "Ok");
this.nameEntry.PlaceholderColor = this.nameEntry.TextColor = Color.FromHex("#00FF00");
nameEntry.Focus();
signUpButton.IsEnabled = true;
return;
}
if (string.IsNullOrEmpty(surname))
{
await DisplayAlert("Info", "Please fill in your surname.", "Ok");
this.surnameEntry.PlaceholderColor = this.surnameEntry.TextColor = Color.FromHex("#00FF00");
surnameEntry.Focus();
signUpButton.IsEnabled = true;
return;
}
if (string.IsNullOrEmpty(email))
{
await DisplayAlert("Info", "Please fill in your email.", "Ok");
this.emailEntry.PlaceholderColor = this.emailEntry.TextColor = Color.FromHex("#00FF00");
emailEntry.Focus();
signUpButton.IsEnabled = true;
return;
}
if (string.IsNullOrEmpty(company))
{
await DisplayAlert("Info", "Please fill in your company name.", "Ok");
this.companyEntry.PlaceholderColor = this.companyEntry.TextColor = Color.FromHex("#00FF00");
companyEntry.Focus();
signUpButton.IsEnabled = true;
return;
}
if (string.IsNullOrEmpty(mobile))
{
await DisplayAlert("Info", "Please fill in your cellphone number.", "Ok");
this.mobileEntry.PlaceholderColor = this.mobileEntry.TextColor = Color.FromHex("#00FF00");
mobileEntry.Focus();
signUpButton.IsEnabled = true;
return;
}
if (string.IsNullOrEmpty(work))
{
await DisplayAlert("Info", "Please fill in your office number.", "Ok");
this.workEntry.PlaceholderColor = this.workEntry.TextColor = Color.FromHex("#00FF00");
workEntry.Focus();
signUpButton.IsEnabled = true;
return;
}
if (string.IsNullOrEmpty(password))
{
await DisplayAlert("Info", "Please fill in your password.", "Ok");
this.passwordEntry.PlaceholderColor = this.passwordEntry.TextColor = Color.FromHex("#00FF00");
passwordEntry.Focus();
signUpButton.IsEnabled = true;
return;
}
try
{
activityIndicator.IsRunning = true;
validationLabel.IsVisible = true;
signUpButton.IsEnabled = false;
if (!string.IsNullOrEmpty(email) && !string.IsNullOrEmpty(password))
{
var OnAdd = new Person
{
Name = name,
Surname = surname,
Email = email,
Mobile = mobile,
Work = work,
Company = company,
Password = password
};
await CreatedNewUser(OnAdd);
await Navigation.PushAsync(new LoginScreen());
}
else
{
await DisplayAlert("Warning", "Could not create user account.", "Ok");
}
}
catch (Exception)
{
await DisplayAlert("Warning", "Could not create user account, problem with internet connection or server.", "Ok");
activityIndicator.IsRunning = false;
validationLabel.IsVisible = false;
signUpButton.IsEnabled = true;
}
}
}
}