ServiceCollection Class

Definition

Default implementation of IServiceCollection.

public ref class ServiceCollection : Microsoft::Extensions::DependencyInjection::IServiceCollection, System::Collections::Generic::ICollection<Microsoft::Extensions::DependencyInjection::ServiceDescriptor ^>, System::Collections::Generic::IEnumerable<Microsoft::Extensions::DependencyInjection::ServiceDescriptor ^>, System::Collections::Generic::IList<Microsoft::Extensions::DependencyInjection::ServiceDescriptor ^>
public class ServiceCollection : Microsoft.Extensions.DependencyInjection.IServiceCollection, System.Collections.Generic.ICollection<Microsoft.Extensions.DependencyInjection.ServiceDescriptor>, System.Collections.Generic.IEnumerable<Microsoft.Extensions.DependencyInjection.ServiceDescriptor>, System.Collections.Generic.IList<Microsoft.Extensions.DependencyInjection.ServiceDescriptor>
type ServiceCollection = class
    interface IServiceCollection
    interface IList<ServiceDescriptor>
    interface ICollection<ServiceDescriptor>
    interface seq<ServiceDescriptor>
    interface IEnumerable
type ServiceCollection = class
    interface IServiceCollection
    interface ICollection<ServiceDescriptor>
    interface seq<ServiceDescriptor>
    interface IEnumerable
    interface IList<ServiceDescriptor>
Public Class ServiceCollection
Implements ICollection(Of ServiceDescriptor), IEnumerable(Of ServiceDescriptor), IList(Of ServiceDescriptor), IServiceCollection
Inheritance
ServiceCollection
Implements

Constructors

ServiceCollection()

Initializes a new instance of the ServiceCollection class.

Properties

Count

Gets the number of elements contained in the ICollection<T>.

IsReadOnly

Gets a value indicating whether the ICollection<T> is read-only.

Item[Int32]

Gets or sets the element at the specified index.

Methods

Clear()

Removes all items from the ICollection<T>.

Contains(ServiceDescriptor)

Determines whether the ICollection<T> contains a specific value.

CopyTo(ServiceDescriptor[], Int32)

Copies the elements of the ICollection<T> to an Array, starting at a particular Array index.

Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetEnumerator()

Returns an enumerator that iterates through the collection.

GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType()

Gets the Type of the current instance.

(Inherited from Object)
IndexOf(ServiceDescriptor)

Determines the index of a specific item in the IList<T>.

Insert(Int32, ServiceDescriptor)

Inserts an item to the IList<T> at the specified index.

MakeReadOnly()

Makes this collection read-only.

MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
Remove(ServiceDescriptor)

Removes the first occurrence of a specific object from the ICollection<T>.

RemoveAt(Int32)

Removes the IList<T> item at the specified index.

ToString()

Returns a string that represents the current object.

(Inherited from Object)

Explicit Interface Implementations

ICollection<ServiceDescriptor>.Add(ServiceDescriptor)

Adds an item to the ICollection<T>.

IEnumerable.GetEnumerator()

Returns an enumerator that iterates through a collection.

Extension Methods

Add(IServiceCollection, ServiceDescriptor)

Adds the specified descriptor to the collection.

Add(IServiceCollection, IEnumerable<ServiceDescriptor>)

Adds a sequence of ServiceDescriptor to the collection.

RemoveAll(IServiceCollection, Type)

Removes all services of type serviceType in IServiceCollection.

RemoveAll<T>(IServiceCollection)

Removes all services of type T in IServiceCollection.

RemoveAllKeyed(IServiceCollection, Type, Object)

Removes all services of type serviceType in collection.

RemoveAllKeyed<T>(IServiceCollection, Object)

Removes all services of type T in collection.

Replace(IServiceCollection, ServiceDescriptor)

Removes the first service in IServiceCollection with the same service type as descriptor and adds descriptor to the collection.

TryAdd(IServiceCollection, ServiceDescriptor)

Adds the specified descriptor to the collection if the service type hasn't already been registered.

TryAdd(IServiceCollection, IEnumerable<ServiceDescriptor>)

Adds the specified descriptors to the collection if the service type hasn't already been registered.

TryAddEnumerable(IServiceCollection, ServiceDescriptor)

Adds a ServiceDescriptor if an existing descriptor with the same ServiceType and an implementation that does not already exist in services.

TryAddEnumerable(IServiceCollection, IEnumerable<ServiceDescriptor>)

Adds the specified ServiceDescriptors if an existing descriptor with the same ServiceType and an implementation that does not already exist in services.

TryAddKeyedScoped(IServiceCollection, Type, Object)

Adds the specified service as a Scoped service to the collection if the service type hasn't already been registered.

TryAddKeyedScoped(IServiceCollection, Type, Object, Func<IServiceProvider,Object,Object>)

Adds the specified service as a Scoped service using the factory specified in implementationFactory to the collection if the service type hasn't already been registered.

TryAddKeyedScoped(IServiceCollection, Type, Object, Type)

Adds the specified service as a Scoped service with the implementationType implementation to the collection if the service type hasn't already been registered.

TryAddKeyedScoped<TService>(IServiceCollection, Object)

Adds the specified TService as a Scoped service to the collection if the service type hasn't already been registered.

TryAddKeyedScoped<TService>(IServiceCollection, Object, Func<IServiceProvider,Object,TService>)

Adds the specified TService as a Scoped service using the factory specified in implementationFactory to the services if the service type hasn't already been registered.

TryAddKeyedScoped<TService,TImplementation>(IServiceCollection, Object)

Adds the specified TService as a Scoped service implementation type specified in TImplementation to the collection if the service type hasn't already been registered.

TryAddKeyedSingleton(IServiceCollection, Type, Object)

Adds the specified service as a Singleton service to the collection if the service type hasn't already been registered.

TryAddKeyedSingleton(IServiceCollection, Type, Object, Func<IServiceProvider,Object,Object>)

Adds the specified service as a Singleton service using the factory specified in implementationFactory to the collection if the service type hasn't already been registered.

TryAddKeyedSingleton(IServiceCollection, Type, Object, Type)

Adds the specified service as a Singleton service with the implementationType implementation to the collection if the service type hasn't already been registered.

TryAddKeyedSingleton<TService>(IServiceCollection, Object)

Adds the specified TService as a Singleton service to the collection if the service type hasn't already been registered.

TryAddKeyedSingleton<TService>(IServiceCollection, Object, TService)

Adds the specified TService as a Singleton service with an instance specified in instance to the collection if the service type hasn't already been registered.

TryAddKeyedSingleton<TService>(IServiceCollection, Object, Func<IServiceProvider,Object,TService>)

Adds the specified TService as a Singleton service using the factory specified in implementationFactory to the services if the service type hasn't already been registered.

TryAddKeyedSingleton<TService,TImplementation>(IServiceCollection, Object)

Adds the specified TService as a Singleton service implementation type specified in TImplementation to the collection if the service type hasn't already been registered.

TryAddKeyedTransient(IServiceCollection, Type, Object)

Adds the specified service as a Transient service to the collection if the service type hasn't already been registered.

TryAddKeyedTransient(IServiceCollection, Type, Object, Func<IServiceProvider,Object,Object>)

Adds the specified service as a Transient service using the factory specified in implementationFactory to the collection if the service type hasn't already been registered.

TryAddKeyedTransient(IServiceCollection, Type, Object, Type)

Adds the specified service as a Transient service with the implementationType implementation to the collection if the service type hasn't already been registered.

TryAddKeyedTransient<TService>(IServiceCollection, Object)

Adds the specified TService as a Transient service to the collection if the service type hasn't already been registered.

TryAddKeyedTransient<TService>(IServiceCollection, Object, Func<IServiceProvider,Object,TService>)

Adds the specified TService as a Transient service using the factory specified in implementationFactory to the services if the service type hasn't already been registered.

TryAddKeyedTransient<TService,TImplementation>(IServiceCollection, Object)

Adds the specified TService as a Transient service implementation type specified in TImplementation to the collection if the service type hasn't already been registered.

TryAddScoped(IServiceCollection, Type)

Adds the specified service as a Scoped service to the collection if the service type hasn't already been registered.

TryAddScoped(IServiceCollection, Type, Func<IServiceProvider,Object>)

Adds the specified service as a Scoped service using the factory specified in implementationFactory to the collection if the service type hasn't already been registered.

TryAddScoped(IServiceCollection, Type, Type)

Adds the specified service as a Scoped service with the implementationType implementation to the collection if the service type hasn't already been registered.

TryAddScoped<TService>(IServiceCollection)

Adds the specified TService as a Scoped service to the collection if the service type hasn't already been registered.

TryAddScoped<TService>(IServiceCollection, Func<IServiceProvider,TService>)

Adds the specified TService as a Scoped service using the factory specified in implementationFactory to the services if the service type hasn't already been registered.

TryAddScoped<TService,TImplementation>(IServiceCollection)

Adds the specified TService as a Scoped service implementation type specified in TImplementation to the collection if the service type hasn't already been registered.

TryAddSingleton(IServiceCollection, Type)

Adds the specified service as a Singleton service to the collection if the service type hasn't already been registered.

TryAddSingleton(IServiceCollection, Type, Func<IServiceProvider,Object>)

Adds the specified service as a Singleton service using the factory specified in implementationFactory to the collection if the service type hasn't already been registered.

TryAddSingleton(IServiceCollection, Type, Type)

Adds the specified service as a Singleton service with the implementationType implementation to the collection if the service type hasn't already been registered.

TryAddSingleton<TService>(IServiceCollection)

Adds the specified TService as a Singleton service to the collection if the service type hasn't already been registered.

TryAddSingleton<TService>(IServiceCollection, TService)

Adds the specified TService as a Singleton service with an instance specified in instance to the collection if the service type hasn't already been registered.

TryAddSingleton<TService>(IServiceCollection, Func<IServiceProvider,TService>)

Adds the specified TService as a Singleton service using the factory specified in implementationFactory to the services if the service type hasn't already been registered.

TryAddSingleton<TService,TImplementation>(IServiceCollection)

Adds the specified TService as a Singleton service implementation type specified in TImplementation to the collection if the service type hasn't already been registered.

TryAddTransient(IServiceCollection, Type)

Adds the specified service as a Transient service to the collection if the service type hasn't already been registered.

TryAddTransient(IServiceCollection, Type, Func<IServiceProvider,Object>)

Adds the specified service as a Transient service using the factory specified in implementationFactory to the collection if the service type hasn't already been registered.

TryAddTransient(IServiceCollection, Type, Type)

Adds the specified service as a Transient service with the implementationType implementation to the collection if the service type hasn't already been registered.

TryAddTransient<TService>(IServiceCollection)

Adds the specified TService as a Transient service to the collection if the service type hasn't already been registered.

TryAddTransient<TService>(IServiceCollection, Func<IServiceProvider,TService>)

Adds the specified TService as a Transient service using the factory specified in implementationFactory to the services if the service type hasn't already been registered.

TryAddTransient<TService,TImplementation>(IServiceCollection)

Adds the specified TService as a Transient service implementation type specified in TImplementation to the collection if the service type hasn't already been registered.

AddLogging(IServiceCollection)

Adds logging services to the specified IServiceCollection.

AddLogging(IServiceCollection, Action<ILoggingBuilder>)

Adds logging services to the specified IServiceCollection.

AddOptions(IServiceCollection)

Adds services required for using options.

AddOptions<TOptions>(IServiceCollection)

Gets an options builder that forwards Configure calls for the same named TOptions to the underlying service collection.

AddOptions<TOptions>(IServiceCollection, String)

Gets an options builder that forwards Configure calls for the same named TOptions to the underlying service collection.

AddOptionsWithValidateOnStart<TOptions>(IServiceCollection, String)

Adds services required for using options and enforces options validation check on start rather than at run time.

AddOptionsWithValidateOnStart<TOptions,TValidateOptions>(IServiceCollection, String)

Adds services required for using options and enforces options validation check on start rather than at run time.

Configure<TOptions>(IServiceCollection, Action<TOptions>)

Registers an action used to configure a particular type of options once during startup. This is run before PostConfigure<TOptions>(IServiceCollection, Action<TOptions>). Updates to the configuration does not invoke the action again.

Configure<TOptions>(IServiceCollection, String, Action<TOptions>)

Registers an action used to configure a particular type of options. These are run before PostConfigure<TOptions>(IServiceCollection, Action<TOptions>).

ConfigureAll<TOptions>(IServiceCollection, Action<TOptions>)

Registers an action used to configure all instances of a particular type of options.

ConfigureOptions(IServiceCollection, Object)

Registers an object that will have all of its I[Post]ConfigureOptions registered.

ConfigureOptions(IServiceCollection, Type)

Registers a type that will have all of its I[Post]ConfigureOptions registered.

ConfigureOptions<TConfigureOptions>(IServiceCollection)

Registers a type that will have all of its I[Post]ConfigureOptions registered.

PostConfigure<TOptions>(IServiceCollection, Action<TOptions>)

Registers an action used to initialize a particular type of options. These are run after Configure<TOptions>(IServiceCollection, Action<TOptions>).

PostConfigure<TOptions>(IServiceCollection, String, Action<TOptions>)

Registers an action used to configure a particular type of options. These are run after Configure<TOptions>(IServiceCollection, Action<TOptions>).

PostConfigureAll<TOptions>(IServiceCollection, Action<TOptions>)

Registers an action used to post configure all instances of a particular type of options. These are run after Configure<TOptions>(IServiceCollection, Action<TOptions>).

BuildServiceProvider(IServiceCollection)

Creates a ServiceProvider containing services from the provided IServiceCollection.

BuildServiceProvider(IServiceCollection, ServiceProviderOptions)

Creates a ServiceProvider containing services from the provided IServiceCollection optionally enabling service-creation and scope validation.

BuildServiceProvider(IServiceCollection, Boolean)

Creates a ServiceProvider containing services from the provided IServiceCollection optionally enabling scope validation.

AddHostedService<THostedService>(IServiceCollection)

Add an IHostedService registration for the given type.

AddHostedService<THostedService>(IServiceCollection, Func<IServiceProvider,THostedService>)

Add an IHostedService registration for the given type.

AddKeyedScoped(IServiceCollection, Type, Object)

Adds a scoped service of the type specified in serviceType to the specified IServiceCollection.

AddKeyedScoped(IServiceCollection, Type, Object, Func<IServiceProvider,Object,Object>)

Adds a scoped service of the type specified in serviceType with a factory specified in implementationFactory to the specified IServiceCollection.

AddKeyedScoped(IServiceCollection, Type, Object, Type)

Adds a scoped service of the type specified in serviceType with an implementation of the type specified in implementationType to the specified IServiceCollection.

AddKeyedScoped<TService>(IServiceCollection, Object)

Adds a scoped service of the type specified in TService to the specified IServiceCollection.

AddKeyedScoped<TService>(IServiceCollection, Object, Func<IServiceProvider,Object,TService>)

Adds a scoped service of the type specified in TService with a factory specified in implementationFactory to the specified IServiceCollection.

AddKeyedScoped<TService,TImplementation>(IServiceCollection, Object)

Adds a scoped service of the type specified in TService with an implementation type specified in TImplementation to the specified IServiceCollection.

AddKeyedScoped<TService,TImplementation>(IServiceCollection, Object, Func<IServiceProvider,Object,TImplementation>)

Adds a scoped service of the type specified in TService with an implementation type specified in TImplementation using the factory specified in implementationFactory to the specified IServiceCollection.

AddKeyedSingleton(IServiceCollection, Type, Object)

Adds a singleton service of the type specified in serviceType to the specified IServiceCollection.

AddKeyedSingleton(IServiceCollection, Type, Object, Func<IServiceProvider,Object,Object>)

Adds a singleton service of the type specified in serviceType with a factory specified in implementationFactory to the specified IServiceCollection.

AddKeyedSingleton(IServiceCollection, Type, Object, Object)

Adds a singleton service of the type specified in serviceType with an instance specified in implementationInstance to the specified IServiceCollection.

AddKeyedSingleton(IServiceCollection, Type, Object, Type)

Adds a singleton service of the type specified in serviceType with an implementation of the type specified in implementationType to the specified IServiceCollection.

AddKeyedSingleton<TService>(IServiceCollection, Object)

Adds a singleton service of the type specified in TService to the specified IServiceCollection.

AddKeyedSingleton<TService>(IServiceCollection, Object, TService)

Adds a singleton service of the type specified in TService with an instance specified in implementationInstance to the specified IServiceCollection.

AddKeyedSingleton<TService>(IServiceCollection, Object, Func<IServiceProvider,Object,TService>)

Adds a singleton service of the type specified in TService with a factory specified in implementationFactory to the specified IServiceCollection.

AddKeyedSingleton<TService,TImplementation>(IServiceCollection, Object)

Adds a singleton service of the type specified in TService with an implementation type specified in TImplementation to the specified IServiceCollection.

AddKeyedSingleton<TService,TImplementation>(IServiceCollection, Object, Func<IServiceProvider,Object,TImplementation>)

Adds a singleton service of the type specified in TService with an implementation type specified in TImplementation using the factory specified in implementationFactory to the specified IServiceCollection.

AddKeyedTransient(IServiceCollection, Type, Object)

Adds a transient service of the type specified in serviceType to the specified IServiceCollection.

AddKeyedTransient(IServiceCollection, Type, Object, Func<IServiceProvider,Object,Object>)

Adds a transient service of the type specified in serviceType with a factory specified in implementationFactory to the specified IServiceCollection.

AddKeyedTransient(IServiceCollection, Type, Object, Type)

Adds a transient service of the type specified in serviceType with an implementation of the type specified in implementationType to the specified IServiceCollection.

AddKeyedTransient<TService>(IServiceCollection, Object)

Adds a transient service of the type specified in TService to the specified IServiceCollection.

AddKeyedTransient<TService>(IServiceCollection, Object, Func<IServiceProvider,Object,TService>)

Adds a transient service of the type specified in TService with a factory specified in implementationFactory to the specified IServiceCollection.

AddKeyedTransient<TService,TImplementation>(IServiceCollection, Object)

Adds a transient service of the type specified in TService with an implementation type specified in TImplementation to the specified IServiceCollection.

AddKeyedTransient<TService,TImplementation>(IServiceCollection, Object, Func<IServiceProvider,Object,TImplementation>)

Adds a transient service of the type specified in TService with an implementation type specified in TImplementation using the factory specified in implementationFactory to the specified IServiceCollection.

AddScoped(IServiceCollection, Type)

Adds a scoped service of the type specified in serviceType to the specified IServiceCollection.

AddScoped(IServiceCollection, Type, Func<IServiceProvider,Object>)

Adds a scoped service of the type specified in serviceType with a factory specified in implementationFactory to the specified IServiceCollection.

AddScoped(IServiceCollection, Type, Type)

Adds a scoped service of the type specified in serviceType with an implementation of the type specified in implementationType to the specified IServiceCollection.

AddScoped<TService>(IServiceCollection)

Adds a scoped service of the type specified in TService to the specified IServiceCollection.

AddScoped<TService>(IServiceCollection, Func<IServiceProvider,TService>)

Adds a scoped service of the type specified in TService with a factory specified in implementationFactory to the specified IServiceCollection.

AddScoped<TService,TImplementation>(IServiceCollection)

Adds a scoped service of the type specified in TService with an implementation type specified in TImplementation to the specified IServiceCollection.

AddScoped<TService,TImplementation>(IServiceCollection, Func<IServiceProvider,TImplementation>)

Adds a scoped service of the type specified in TService with an implementation type specified in TImplementation using the factory specified in implementationFactory to the specified IServiceCollection.

AddSingleton(IServiceCollection, Type)

Adds a singleton service of the type specified in serviceType to the specified IServiceCollection.

AddSingleton(IServiceCollection, Type, Func<IServiceProvider,Object>)

Adds a singleton service of the type specified in serviceType with a factory specified in implementationFactory to the specified IServiceCollection.

AddSingleton(IServiceCollection, Type, Object)

Adds a singleton service of the type specified in serviceType with an instance specified in implementationInstance to the specified IServiceCollection.

AddSingleton(IServiceCollection, Type, Type)

Adds a singleton service of the type specified in serviceType with an implementation of the type specified in implementationType to the specified IServiceCollection.

AddSingleton<TService>(IServiceCollection)

Adds a singleton service of the type specified in TService to the specified IServiceCollection.

AddSingleton<TService>(IServiceCollection, TService)

Adds a singleton service of the type specified in TService with an instance specified in implementationInstance to the specified IServiceCollection.

AddSingleton<TService>(IServiceCollection, Func<IServiceProvider,TService>)

Adds a singleton service of the type specified in TService with a factory specified in implementationFactory to the specified IServiceCollection.

AddSingleton<TService,TImplementation>(IServiceCollection)

Adds a singleton service of the type specified in TService with an implementation type specified in TImplementation to the specified IServiceCollection.

AddSingleton<TService,TImplementation>(IServiceCollection, Func<IServiceProvider,TImplementation>)

Adds a singleton service of the type specified in TService with an implementation type specified in TImplementation using the factory specified in implementationFactory to the specified IServiceCollection.

AddTransient(IServiceCollection, Type)

Adds a transient service of the type specified in serviceType to the specified IServiceCollection.

AddTransient(IServiceCollection, Type, Func<IServiceProvider,Object>)

Adds a transient service of the type specified in serviceType with a factory specified in implementationFactory to the specified IServiceCollection.

AddTransient(IServiceCollection, Type, Type)

Adds a transient service of the type specified in serviceType with an implementation of the type specified in implementationType to the specified IServiceCollection.

AddTransient<TService>(IServiceCollection)

Adds a transient service of the type specified in TService to the specified IServiceCollection.

AddTransient<TService>(IServiceCollection, Func<IServiceProvider,TService>)

Adds a transient service of the type specified in TService with a factory specified in implementationFactory to the specified IServiceCollection.

AddTransient<TService,TImplementation>(IServiceCollection)

Adds a transient service of the type specified in TService with an implementation type specified in TImplementation to the specified IServiceCollection.

AddTransient<TService,TImplementation>(IServiceCollection, Func<IServiceProvider,TImplementation>)

Adds a transient service of the type specified in TService with an implementation type specified in TImplementation using the factory specified in implementationFactory to the specified IServiceCollection.

AddSystemd(IServiceCollection)
AddWindowsService(IServiceCollection)
AddWindowsService(IServiceCollection, Action<WindowsServiceLifetimeOptions>)
CopyToDataTable<T>(IEnumerable<T>)

Returns a DataTable that contains copies of the DataRow objects, given an input IEnumerable<T> object where the generic parameter T is DataRow.

CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption)

Copies DataRow objects to the specified DataTable, given an input IEnumerable<T> object where the generic parameter T is DataRow.

CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler)

Copies DataRow objects to the specified DataTable, given an input IEnumerable<T> object where the generic parameter T is DataRow.

Aggregate<TSource>(IEnumerable<TSource>, Func<TSource,TSource,TSource>)

Applies an accumulator function over a sequence.

Aggregate<TSource,TAccumulate>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>)

Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.

Aggregate<TSource,TAccumulate,TResult>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>, Func<TAccumulate,TResult>)

Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.

All<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Determines whether all elements of a sequence satisfy a condition.

Any<TSource>(IEnumerable<TSource>)

Determines whether a sequence contains any elements.

Any<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Determines whether any element of a sequence satisfies a condition.

Append<TSource>(IEnumerable<TSource>, TSource)

Appends a value to the end of the sequence.

AsEnumerable<TSource>(IEnumerable<TSource>)

Returns the input typed as IEnumerable<T>.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)

Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Double>)

Computes the average of a sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)

Computes the average of a sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)

Computes the average of a sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)

Computes the average of a sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)

Computes the average of a sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)

Computes the average of a sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)

Computes the average of a sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)

Computes the average of a sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Single>)

Computes the average of a sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.

Cast<TResult>(IEnumerable)

Casts the elements of an IEnumerable to the specified type.

Concat<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)

Concatenates two sequences.

Contains<TSource>(IEnumerable<TSource>, TSource)

Determines whether a sequence contains a specified element by using the default equality comparer.

Contains<TSource>(IEnumerable<TSource>, TSource, IEqualityComparer<TSource>)

Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>.

Count<TSource>(IEnumerable<TSource>)

Returns the number of elements in a sequence.

Count<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns a number that represents how many elements in the specified sequence satisfy a condition.

DefaultIfEmpty<TSource>(IEnumerable<TSource>)

Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.

DefaultIfEmpty<TSource>(IEnumerable<TSource>, TSource)

Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.

Distinct<TSource>(IEnumerable<TSource>)

Returns distinct elements from a sequence by using the default equality comparer to compare values.

Distinct<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)

Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values.

ElementAt<TSource>(IEnumerable<TSource>, Int32)

Returns the element at a specified index in a sequence.

ElementAtOrDefault<TSource>(IEnumerable<TSource>, Int32)

Returns the element at a specified index in a sequence or a default value if the index is out of range.

Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)

Produces the set difference of two sequences by using the default equality comparer to compare values.

Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

Produces the set difference of two sequences by using the specified IEqualityComparer<T> to compare values.

First<TSource>(IEnumerable<TSource>)

Returns the first element of a sequence.

First<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the first element in a sequence that satisfies a specified condition.

FirstOrDefault<TSource>(IEnumerable<TSource>)

Returns the first element of a sequence, or a default value if the sequence contains no elements.

FirstOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the first element of the sequence that satisfies a condition or a default value if no such element is found.

GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Groups the elements of a sequence according to a specified key selector function.

GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)

Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.

GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)

Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.

GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)

Groups the elements of a sequence according to a key selector function. The keys are compared by using a comparer and each group's elements are projected by using a specified function.

GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>)

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.

GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>, IEqualityComparer<TKey>)

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The keys are compared by using a specified comparer.

GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>)

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.

GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>, TResult>, IEqualityComparer<TKey>)

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.

GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>, TResult>)

Correlates the elements of two sequences based on equality of keys and groups the results. The default equality comparer is used to compare keys.

GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>, TResult>, IEqualityComparer<TKey>)

Correlates the elements of two sequences based on key equality and groups the results. A specified IEqualityComparer<T> is used to compare keys.

Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)

Produces the set intersection of two sequences by using the default equality comparer to compare values.

Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

Produces the set intersection of two sequences by using the specified IEqualityComparer<T> to compare values.

Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>)

Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.

Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>, IEqualityComparer<TKey>)

Correlates the elements of two sequences based on matching keys. A specified IEqualityComparer<T> is used to compare keys.

Last<TSource>(IEnumerable<TSource>)

Returns the last element of a sequence.

Last<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the last element of a sequence that satisfies a specified condition.

LastOrDefault<TSource>(IEnumerable<TSource>)

Returns the last element of a sequence, or a default value if the sequence contains no elements.

LastOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.

LongCount<TSource>(IEnumerable<TSource>)

Returns an Int64 that represents the total number of elements in a sequence.

LongCount<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns an Int64 that represents how many elements in a sequence satisfy a condition.

Max<TSource>(IEnumerable<TSource>)

Returns the maximum value in a generic sequence.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)

Invokes a transform function on each element of a sequence and returns the maximum Decimal value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Double>)

Invokes a transform function on each element of a sequence and returns the maximum Double value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)

Invokes a transform function on each element of a sequence and returns the maximum Int32 value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)

Invokes a transform function on each element of a sequence and returns the maximum Int64 value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)

Invokes a transform function on each element of a sequence and returns the maximum nullable Decimal value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)

Invokes a transform function on each element of a sequence and returns the maximum nullable Double value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)

Invokes a transform function on each element of a sequence and returns the maximum nullable Int32 value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)

Invokes a transform function on each element of a sequence and returns the maximum nullable Int64 value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)

Invokes a transform function on each element of a sequence and returns the maximum nullable Single value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Single>)

Invokes a transform function on each element of a sequence and returns the maximum Single value.

Max<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)

Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.

Min<TSource>(IEnumerable<TSource>)

Returns the minimum value in a generic sequence.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)

Invokes a transform function on each element of a sequence and returns the minimum Decimal value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Double>)

Invokes a transform function on each element of a sequence and returns the minimum Double value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)

Invokes a transform function on each element of a sequence and returns the minimum Int32 value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)

Invokes a transform function on each element of a sequence and returns the minimum Int64 value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)

Invokes a transform function on each element of a sequence and returns the minimum nullable Decimal value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)

Invokes a transform function on each element of a sequence and returns the minimum nullable Double value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)

Invokes a transform function on each element of a sequence and returns the minimum nullable Int32 value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)

Invokes a transform function on each element of a sequence and returns the minimum nullable Int64 value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)

Invokes a transform function on each element of a sequence and returns the minimum nullable Single value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Single>)

Invokes a transform function on each element of a sequence and returns the minimum Single value.

Min<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)

Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.

OfType<TResult>(IEnumerable)

Filters the elements of an IEnumerable based on a specified type.

OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Sorts the elements of a sequence in ascending order according to a key.

OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)

Sorts the elements of a sequence in ascending order by using a specified comparer.

OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Sorts the elements of a sequence in descending order according to a key.

OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)

Sorts the elements of a sequence in descending order by using a specified comparer.

Prepend<TSource>(IEnumerable<TSource>, TSource)

Adds a value to the beginning of the sequence.

Reverse<TSource>(IEnumerable<TSource>)

Inverts the order of the elements in a sequence.

Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)

Projects each element of a sequence into a new form.

Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,TResult>)

Projects each element of a sequence into a new form by incorporating the element's index.

SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TResult>>)

Projects each element of a sequence to an IEnumerable<T> and flattens the resulting sequences into one sequence.

SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TResult>>)

Projects each element of a sequence to an IEnumerable<T>, and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.

SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>)

Projects each element of a sequence to an IEnumerable<T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.

SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>)

Projects each element of a sequence to an IEnumerable<T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. The index of each source element is used in the intermediate projected form of that element.

SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)

Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.

SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer<T>.

Single<TSource>(IEnumerable<TSource>)

Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.

Single<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.

SingleOrDefault<TSource>(IEnumerable<TSource>)

Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.

SingleOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.

Skip<TSource>(IEnumerable<TSource>, Int32)

Bypasses a specified number of elements in a sequence and then returns the remaining elements.

SkipLast<TSource>(IEnumerable<TSource>, Int32)

Returns a new enumerable collection that contains the elements from source with the last count elements of the source collection omitted.

SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.

SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)

Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)

Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Double>)

Computes the sum of the sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)

Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)

Computes the sum of the sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)

Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)

Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)

Computes the sum of the sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)

Computes the sum of the sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)

Computes the sum of the sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Single>)

Computes the sum of the sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.

Take<TSource>(IEnumerable<TSource>, Int32)

Returns a specified number of contiguous elements from the start of a sequence.

TakeLast<TSource>(IEnumerable<TSource>, Int32)

Returns a new enumerable collection that contains the last count elements from source.

TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns elements from a sequence as long as a specified condition is true.

TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)

Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.

ToArray<TSource>(IEnumerable<TSource>)

Creates an array from a IEnumerable<T>.

ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to a specified key selector function.

ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)

Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to a specified key selector function and key comparer.

ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)

Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to specified key selector and element selector functions.

ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)

Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to a specified key selector function, a comparer, and an element selector function.

ToHashSet<TSource>(IEnumerable<TSource>)

Creates a HashSet<T> from an IEnumerable<T>.

ToHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)

Creates a HashSet<T> from an IEnumerable<T> using the comparer to compare keys.

ToList<TSource>(IEnumerable<TSource>)

Creates a List<T> from an IEnumerable<T>.

ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to a specified key selector function.

ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)

Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to a specified key selector function and key comparer.

ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)

Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to specified key selector and element selector functions.

ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)

Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to a specified key selector function, a comparer and an element selector function.

Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)

Produces the set union of two sequences by using the default equality comparer.

Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

Produces the set union of two sequences by using a specified IEqualityComparer<T>.

Where<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Filters a sequence of values based on a predicate.

Where<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)

Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.

Zip<TFirst,TSecond,TResult>(IEnumerable<TFirst>, IEnumerable<TSecond>, Func<TFirst,TSecond,TResult>)

Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.

AsParallel(IEnumerable)

Enables parallelization of a query.

AsParallel<TSource>(IEnumerable<TSource>)

Enables parallelization of a query.

AsQueryable(IEnumerable)

Converts an IEnumerable to an IQueryable.

AsQueryable<TElement>(IEnumerable<TElement>)

Converts a generic IEnumerable<T> to a generic IQueryable<T>.

Ancestors<T>(IEnumerable<T>)

Returns a collection of elements that contains the ancestors of every node in the source collection.

Ancestors<T>(IEnumerable<T>, XName)

Returns a filtered collection of elements that contains the ancestors of every node in the source collection. Only elements that have a matching XName are included in the collection.

DescendantNodes<T>(IEnumerable<T>)

Returns a collection of the descendant nodes of every document and element in the source collection.

Descendants<T>(IEnumerable<T>)

Returns a collection of elements that contains the descendant elements of every element and document in the source collection.

Descendants<T>(IEnumerable<T>, XName)

Returns a filtered collection of elements that contains the descendant elements of every element and document in the source collection. Only elements that have a matching XName are included in the collection.

Elements<T>(IEnumerable<T>)

Returns a collection of the child elements of every element and document in the source collection.

Elements<T>(IEnumerable<T>, XName)

Returns a filtered collection of the child elements of every element and document in the source collection. Only elements that have a matching XName are included in the collection.

InDocumentOrder<T>(IEnumerable<T>)

Returns a collection of nodes that contains all nodes in the source collection, sorted in document order.

Nodes<T>(IEnumerable<T>)

Returns a collection of the child nodes of every document and element in the source collection.

Remove<T>(IEnumerable<T>)

Removes every node in the source collection from its parent node.

Applies to