本文整理汇总了C#中ServiceCollection.FirstOrDefault方法的典型用法代码示例。如果您正苦于以下问题：C# ServiceCollection.FirstOrDefault方法的具体用法？C# ServiceCollection.FirstOrDefault怎么用？C# ServiceCollection.FirstOrDefault使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ServiceCollection的用法示例。
在下文中一共展示了ServiceCollection.FirstOrDefault方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: AddCaching_DoesNotReplaceUserRegisteredServices
public void AddCaching_DoesNotReplaceUserRegisteredServices()
{
// Arrange
var services = new ServiceCollection();
services.AddScoped<IMemoryCache, TestMemoryCache>();
services.AddScoped<IDistributedCache, TestDistributedCache>();
// Act
services.AddCaching();
// Assert
var serviceProvider = services.BuildServiceProvider();
var memoryCache = services.FirstOrDefault(desc => desc.ServiceType == typeof(IMemoryCache));
Assert.NotNull(memoryCache);
Assert.Equal(ServiceLifetime.Scoped, memoryCache.Lifetime);
Assert.IsType<TestMemoryCache>(serviceProvider.GetRequiredService<IMemoryCache>());
var distributedCache = services.FirstOrDefault(desc => desc.ServiceType == typeof(IDistributedCache));
Assert.NotNull(distributedCache);
Assert.Equal(ServiceLifetime.Scoped, memoryCache.Lifetime);
Assert.IsType<TestDistributedCache>(serviceProvider.GetRequiredService<IDistributedCache>());
}示例2: AddCaching_RegistersDistributedCacheAsTransient
public void AddCaching_RegistersDistributedCacheAsTransient()
{
// Arrange
var services = new ServiceCollection();
// Act
services.AddCaching();
// Assert
var distributedCache = services.FirstOrDefault(desc => desc.ServiceType == typeof(IDistributedCache));
Assert.NotNull(distributedCache);
Assert.Equal(ServiceLifetime.Transient, distributedCache.Lifetime);
}示例3: AddCaching_RegistersMemoryCacheAsSingleton
public void AddCaching_RegistersMemoryCacheAsSingleton()
{
// Arrange
var services = new ServiceCollection();
// Act
services.AddCaching();
// Assert
var memoryCache = services.FirstOrDefault(desc => desc.ServiceType == typeof(IMemoryCache));
Assert.NotNull(memoryCache);
Assert.Equal(ServiceLifetime.Singleton, memoryCache.Lifetime);
}示例4: ReplaceLifetimeShouldWorkCorrectlyWithImplementationFactory
public void ReplaceLifetimeShouldWorkCorrectlyWithImplementationFactory()
{
var serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton<IInjectedService>(s => new InjectedService());
Assert.Equal(ServiceLifetime.Singleton, serviceCollection.FirstOrDefault(s => s.ServiceType == typeof(IInjectedService))?.Lifetime);
serviceCollection.ReplaceLifetime<IInjectedService>(ServiceLifetime.Scoped);
Assert.Equal(1, serviceCollection.Count);
Assert.Equal(ServiceLifetime.Scoped, serviceCollection.FirstOrDefault(s => s.ServiceType == typeof(IInjectedService))?.Lifetime);
}示例5: ReplaceShouldReplaceServiceByGenericType
public void ReplaceShouldReplaceServiceByGenericType()
{
var serviceCollection = new ServiceCollection();
serviceCollection.AddTransient(typeof(IInjectedService), typeof(InjectedService));
Assert.IsAssignableFrom<InjectedService>(serviceCollection.BuildServiceProvider().GetService<IInjectedService>());
serviceCollection.Replace<IInjectedService, ReplaceableInjectedService>(ServiceLifetime.Singleton);
Assert.NotNull(serviceCollection.FirstOrDefault(s => s.ServiceType == typeof(IInjectedService) && s.Lifetime == ServiceLifetime.Singleton));
Assert.IsAssignableFrom<ReplaceableInjectedService>(serviceCollection.BuildServiceProvider().GetService<IInjectedService>());
}示例6: ReplaceShouldReplaceServiceByTypeAndImplementationFactory
public void ReplaceShouldReplaceServiceByTypeAndImplementationFactory()
{
var serviceCollection = new ServiceCollection();
serviceCollection.AddTransient(typeof(IInjectedService), typeof(InjectedService));
Assert.IsAssignableFrom<InjectedService>(serviceCollection.BuildServiceProvider().GetService<IInjectedService>());
var injectedService = new ReplaceableInjectedService();
serviceCollection.Replace(typeof(IInjectedService), s => injectedService, ServiceLifetime.Singleton);
var actualService = serviceCollection.FirstOrDefault(s => s.ServiceType == typeof(IInjectedService) && s.Lifetime == ServiceLifetime.Singleton);
Assert.NotNull(actualService);
Assert.Same(injectedService, serviceCollection.BuildServiceProvider().GetService<IInjectedService>());
}