/// <summary>
/// Configures the app to use the Sqlite data source. If no existing Sqlite database exists,
/// loads a demo database filled with fake data so the app has content.
/// </summary>
public static void UseSqlite()
{
string databasePath = ApplicationData.Current.LocalFolder.Path + @"\contoso.db";
var dbOptions = new DbContextOptionsBuilder <ContosoContext>().UseSqlite(
"Data Source=" + databasePath);
Repository = new SqlContosoRepository(dbOptions);
}
public OrderDetailViewModel(IContainerProvider containerProvider,
IContosoRepository contosoRepository)
: base(containerProvider)
{
_contosoRepository = contosoRepository;
Title = "Order Details";
Init();
}
public CustomerDetailViewModel(IContainerProvider containerProvider,
IContosoRepository contosoRepository)
: base(containerProvider)
{
Title = "Details";
_contosoRepository = contosoRepository;
Init();
}
public HomeViewModel(IContainerProvider containerProvider,
IContosoRepository contosoRepository)
: base(containerProvider)
{
Title = "Home!";
_contosoRepository = contosoRepository;
Init();
}
/// <summary>
/// Configures the app to use the Sqlite data source. If no existing Sqlite database exists,
/// loads a demo database filled with fake data so the app has content.
/// </summary>
public static void UseSqlite()
{
string demoDatabasePath = Package.Current.InstalledLocation.Path + @"\Assets\Contoso.db";
string databasePath = ApplicationData.Current.LocalFolder.Path + @"\Contoso.db";
if (!File.Exists(databasePath))
{
File.Copy(demoDatabasePath, databasePath);
}
var dbOptions = new DbContextOptionsBuilder <ContosoContext>().UseSqlite(
"Data Source=" + databasePath);
Repository = new SqlContosoRepository(dbOptions);
}
// Configures the app to use the Sqlite data source. If no existing Sqlite database exists, loads a demo database filled with fake data so the app has content.
public static void UseSqlite()
{
// string path = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);
string demoDatabasePath = $"{AppDomain.CurrentDomain.BaseDirectory}Assets\\Contoso.db";
if (File.Exists(demoDatabasePath))
{
var dbOptions = new DbContextOptionsBuilder <ContosoContext>()
.UseSqlite("Data Source=" + demoDatabasePath)
;
Repository = new SqlContosoRepository(dbOptions);
}
}
public OrderWrapper(IContosoRepository contosoRepository, Order model = null)
{
Model = model;
_contosoRepository = contosoRepository;
// Create an ObservableCollection to wrap Order.LineItems so we can track
// product additions and deletions.
LineItems = new ObservableCollection <LineItem>(Model.LineItems);
LineItems.CollectionChanged += LineItems_Changed;
NewLineItem = new LineItemWrapper();
if (model.Customer == null)
{
Task.Run(() => LoadCustomer(Model.CustomerId));
}
}
/// <summary>
/// 在应用程序由最终用户正常启动时进行调用。
/// 将在启动应用程序以打开特定文件等情况下使用。
/// </summary>
/// <param name="e">有关启动请求和过程的详细信息。</param>
protected override void OnLaunched(LaunchActivatedEventArgs e)
{
// 初始化网络请求接口地址
Repository = new RestContosoRepository(URL);
Frame rootFrame = Window.Current.Content as Frame;
// 不要在窗口已包含内容时重复应用程序初始化，
// 只需确保窗口处于活动状态
if (rootFrame == null)
{
// 创建要充当导航上下文的框架，并导航到第一页
rootFrame = new Frame();
rootFrame.NavigationFailed += OnNavigationFailed;
if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
{
//TODO: 从之前挂起的应用程序加载状态
}
// 将框架放在当前窗口中
Window.Current.Content = rootFrame;
}
if (e.PrelaunchActivated == false)
{
if (rootFrame.Content == null)
{
// 当导航堆栈尚未还原时，导航到第一页，
// 并通过将所需信息作为导航参数传入来配置
// 参数
if (localSettings.Values.ContainsKey("token"))
{
rootFrame.Navigate(typeof(MainPage), e.Arguments);
}
else
{
rootFrame.Navigate(typeof(LoginPage), e.Arguments);
}
}
// 确保当前窗口处于活动状态
Window.Current.Activate();
}
}
/// <summary>
/// Configures the app to use the REST data source. For convenience, a read-only source is provided.
/// You can also deploy your own copy of the REST service locally or to Azure. See the README for details.
/// </summary>
public static void UseRest() =>
Repository = new RestContosoRepository("https://customers-orders-api-prod.azurewebsites.net/api/");
/// <summary>
/// Initializes a new instance of the CustomerViewModel class that wraps a Customer object.
/// </summary>
public CustomerWrapper(IContosoRepository contosoRepository, Customer model = null)
{
_contosoRepository = contosoRepository;
Model = model ?? new Customer();
}