System::Collections::Generic::IEnumerable< T > Class Template Reference

Interface of object providing enumerator on contained elements. More...

#include <ienumerable.h>

Inherits System::Object.

Inherited by System::Collections::CollectionBase< T > [virtual], System::Collections::Generic::ICollection< T > [virtual], System::Collections::Generic::Queue< T >, System::Collections::Generic::Stack< T >, System::Linq::Details::EmptyEnumerable< T >, and System::Linq::IOrderedEnumerable< T >.

Public Types
typedef IEnumerator< T >	IEnumeratorType
	Enumerator type. More...
using	ValueType = T
using	iterator = System::Details::VirtualizedIterator< T >
	Iterator type. More...
using	const_iterator = System::Details::VirtualizedConstIterator< T >
	Const iterator type. More...
using	virtualized_iterator = System::Details::VirtualizedIteratorBase< T >
	Inner iterator base type. More...
using	virtualized_iterator_element = T
	Inner iterator element type. More...
Public Types inherited from System::Object
typedef SmartPtr< Object >	ptr
	Alias for smart pointer type. More...

Public Member Functions
virtual SharedPtr< IEnumerator< T > >	GetEnumerator ()=0
	Gets enumerator. More...
T	LINQ_Aggregate (const Func< T, T, T > &func)
	Applies an accumulator function over a sequence. More...
T	LINQ_ElementAt (int index)
	Returns the element at a specified index in a sequence. More...
T	LINQ_ElementAtOrDefault (int index)
	Returns the element at a specified index in a sequence. More...
T	LINQ_First ()
	Returns the first element of a sequence. More...
T	LINQ_First (const Func< T, bool > &predicate)
	Returns the first element of a sequence that satisfy the specified condition. More...
T	LINQ_FirstOrDefault ()
	Returns the first element of a sequence, or a default value if the sequence is empty. More...
T	LINQ_FirstOrDefault (std::function< bool(T)> predicate)
	Returns the first element of the sequence that satisfies a condition or a default value if no such element is found. More...
T	LINQ_Last ()
	Returns the last element of a sequence. More...
T	LINQ_LastOrDefault ()
	Returns the last element of a sequence, or a default value if the sequence is empty. More...
SharedPtr< List< T > >	LINQ_ToList ()
	Creates a List<T> from a sequence. More...
int	LINQ_Count ()
	Returns the number of elements in the sequence (calculated via direct counting). More...
int	LINQ_Count (const Func< T, bool > &predicate)
	Returns the number of elements in the sequence that satisfy the specified condition. More...
System::ArrayPtr< T >	LINQ_ToArray ()
	Creates an array from a sequence. More...
bool	LINQ_All (std::function< bool(T)> predicate)
	Determines whether all elements of a sequence satisfy a condition. More...
bool	LINQ_Any ()
	Determines whether a sequence contains any elements. More...
bool	LINQ_Any (std::function< bool(T)> predicate)
	Determines whether any element of a sequence exists or satisfies a condition. More...
SharedPtr< IEnumerable< T > >	LINQ_Where (std::function< bool(T)> predicate)
	Filters a sequence based on the specified predicate. More...
bool	LINQ_Contains (T value)
	Determines if a sequence contains a specified value. More...
template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_Cast ()
	Casts the elements to the specified type. More...
template<typename Key >
SharedPtr< Linq::IOrderedEnumerable< T > >	LINQ_OrderBy (const Func< T, Key > &keySelector)
	Sorts the elements of a sequence in ascending order according to the key values selected by keySelector. More...
template<typename Key >
SharedPtr< Linq::IOrderedEnumerable< T > >	LINQ_OrderByDescending (const Func< T, Key > &keySelector)
	Sorts the elements of a sequence in descending order according to the key values selected by keySelector. More...
template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_OfType ()
	Filters the elements of the sequence based on the specified type. More...
template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_Select (const Func< T, ResultType > &selector)
	Transforms elements of a sequence. More...
template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_Select (const Func< T, int32_t, ResultType > &selector)
	Transforms each element of a sequence into a new form by incorporating the element's index. More...
SharedPtr< IEnumerable< T > >	LINQ_Concat (SharedPtr< IEnumerable< T > > sequence)
	Concatenates two sequences. More...
SharedPtr< IEnumerable< T > >	LINQ_Reverse ()
	Inverts the order of the elements in a sequence. More...
template<typename Key >
System::SharedPtr< IEnumerable< System::SharedPtr< System::Linq::IGrouping< Key, T > > > >	LINQ_GroupBy (System::Func< T, Key > keyPredicate)
	Groups the elements of a sequence. More...
template<typename Key , typename Element >
System::SharedPtr< IEnumerable< System::SharedPtr< System::Linq::IGrouping< Key, Element > > > >	LINQ_GroupBy (System::Func< T, Key > keyPredicate, System::Func< T, Element > elementSelector)
	Groups the elements of a sequence. More...
template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_SelectMany (const Func< T, SharedPtr< IEnumerable< ResultType > > > &selector)
	Projects each element of a sequence and combines the resulting sequences into one sequence. More...
SharedPtr< IEnumerable< T > >	LINQ_Take (int32_t count)
	Returns a specified number of contiguous elements from the start of a sequence. More...
template<typename ResultType >
ResultType	LINQ_Min (const Func< T, ResultType > &selector)
	Invokes a transform function on each element of a generic sequence and returns the minimum resulting value. More...
template<typename ResultType >
ResultType	LINQ_Max (const Func< T, ResultType > &selector)
	Invokes a transform function on each element of a generic sequence and returns the maximum resulting value. More...
iterator	begin ()
	Gets iterator pointing to the first element (if any) of the collection. This iterator can't be used to change a referenced object because GetEnumerator() returns a copy-object of T. More...
iterator	end ()
	Gets iterator pointing right after the last element (if any) of the collection. This iterator can't be used to change a referenced object because GetEnumerator() returns a copy-object of T. More...
const_iterator	begin () const
	Gets iterator pointing to the first element (if any) of the const-qualified instance of the collection. More...
const_iterator	end () const
	Gets iterator pointing right after the last element (if any) of the const-qualified instance of the collection. More...
const_iterator	cbegin () const
	Gets iterator pointing to the first const-qualified element (if any) of the collection. More...
const_iterator	cend () const
	Gets iterator pointing right after the last const-qualified element (if any) of the collection. More...
virtual virtualized_iterator *	virtualizeBeginIterator ()
	Gets the implementation of begin iterator for the current container. More...
virtual virtualized_iterator *	virtualizeEndIterator ()
	Gets the implementation of end iterator for the current container. More...
virtual virtualized_iterator *	virtualizeBeginConstIterator () const
	Gets the implementation of begin const iterator for the current container. More...
virtual virtualized_iterator *	virtualizeEndConstIterator () const
	Gets the implementation of end const iterator for the current container. More...
template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_Cast ()
template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_OfType ()
template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_Select (const Func< Source, Result > &selector)
template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_Select (const Func< Source, int32_t, Result > &selector)
template<typename Key >
SharedPtr< Linq::IOrderedEnumerable< Source > >	LINQ_OrderBy (const Func< Source, Key > &keySelector)
template<typename Key >
SharedPtr< Linq::IOrderedEnumerable< Source > >	LINQ_OrderByDescending (const Func< Source, Key > &keySelector)
template<typename Key >
SharedPtr< IEnumerable< SharedPtr< System::Linq::IGrouping< Key, Source > > > >	LINQ_GroupBy (System::Func< Source, Key > keyPredicate)
template<typename Key , typename Element >
SharedPtr< IEnumerable< SharedPtr< System::Linq::IGrouping< Key, Element > > > >	LINQ_GroupBy (System::Func< Source, Key > keyPredicate, System::Func< Source, Element > elementSelector)
template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_SelectMany (const Func< Source, SharedPtr< IEnumerable< Result > > > &selector)
template<typename ResultType >
ResultType	LINQ_Min (const Func< Source, ResultType > &selector)
template<typename ResultType >
ResultType	LINQ_Max (const Func< Source, ResultType > &selector)
Public Member Functions inherited from System::Object
	Object ()
	Creates object. Initializes all internal data structures. More...
virtual	~Object ()
	Destroys object. Frees all internal data structures. More...
	Object (Object const &x)
	Copy constructor. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...
Object &	operator= (Object const &x)
	Assignment operator. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...
Object *	SharedRefAdded ()
	Increments shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
int	SharedRefRemovedSafe ()
	Decrements and returns shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
int	RemovedSharedRefs (int count)
	Decreases shared reference count by specified value. More...
Detail::SmartPtrCounter *	WeakRefAdded ()
	Increments weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
void	WeakRefRemoved ()
	Decrements weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
Detail::SmartPtrCounter *	GetCounter ()
	Gets reference counter data structure associated with the object. More...
int	SharedCount () const
	Gets current value of shared reference counter. More...
void	Lock ()
	Implements C# lock() statement locking. Call directly or use LockContext sentry object. More...
void	Unlock ()
	Implements C# lock() statement unlocking. Call directly or use LockContext sentry object. More...
virtual bool	Equals (ptr obj)
	Compares objects using C# Object.Equals semantics. More...
virtual int32_t	GetHashCode () const
	Analog of C# Object.GetHashCode() method. Enables hashing of custom objects. More...
virtual String	ToString () const
	Analog of C# Object.ToString() method. Enables converting custom objects to string. More...
virtual ptr	MemberwiseClone () const
	Analog of C# Object.MemberwiseClone() method. Enables cloning custom types. More...
virtual const TypeInfo &	GetType () const
	Gets actual type of object. Analog of C# System.Object.GetType() call. More...
virtual bool	Is (const TypeInfo &targetType) const
	Check if object represents an instance of type described by targetType. Analog of C# 'is' operator. More...
virtual void	SetTemplateWeakPtr (uint32_t argument)
	Set n'th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode. More...
virtual bool	FastCast (const Details::FastRttiBase &helper, void **out_ptr) const
	For internal purposes only. More...
template<>
bool	ReferenceEquals (String const &str, std::nullptr_t)
	Specialization of Object::ReferenceEquals for case of string and nullptr. More...
template<>
bool	ReferenceEquals (String const &str1, String const &str2)
	Specialization of Object::ReferenceEquals for case of strings. More...

Protected Member Functions
	~IEnumerable () override
	Destructor. More...
virtualized_iterator *	GetEnumeratorAsVirtualizedIterator ()
	Gets enumerator instance and prepares it to be used as iterator kernel. More...
virtualized_iterator *	GetEnumeratorAsVirtualizedIterator () const
	Gets enumerator instance and prepares it to be used as iterator kernel. More...

Additional Inherited Members
Static Public Member Functions inherited from System::Object
static bool	ReferenceEquals (ptr const &objA, ptr const &objB)
	Compares objects by reference. More...
template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type	ReferenceEquals (T const &objA, T const &objB)
	Compares objects by reference. More...
template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type	ReferenceEquals (T const &objA, std::nullptr_t)
	Reference-compares value type object with nullptr. More...
template<typename T1 , typename T2 >
static std::enable_if< IsSmartPtr< T1 >::value &&IsSmartPtr< T2 >::value, bool >::type	Equals (T1 const &objA, T2 const &objB)
	Compares reference type objects in C# style. More...
template<typename T1 , typename T2 >
static std::enable_if<!IsSmartPtr< T1 >::value &&!IsSmartPtr< T2 >::value, bool >::type	Equals (T1 const &objA, T2 const &objB)
	Compares value type objects in C# style. More...
static const TypeInfo &	Type ()
	Implements C# typeof(System.Object) construct. More...
template<>
bool	Equals (float const &objA, float const &objB)
	Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. More...
template<>
bool	Equals (double const &objA, double const &objB)
	Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. More...

Detailed Description

template<typename T>
class System::Collections::Generic::IEnumerable< T >

Interface of object providing enumerator on contained elements.

Template Parameters

T	Element type.

Member Typedef Documentation

const_iterator

template<typename T >

using System::Collections::Generic::IEnumerable< T >::const_iterator = System::Details::VirtualizedConstIterator<T>

Const iterator type.

IEnumeratorType

template<typename T >

typedef IEnumerator<T> System::Collections::Generic::IEnumerable< T >::IEnumeratorType

Enumerator type.

iterator

template<typename T >

using System::Collections::Generic::IEnumerable< T >::iterator = System::Details::VirtualizedIterator<T>

Iterator type.

ValueType

template<typename T >

using System::Collections::Generic::IEnumerable< T >::ValueType = T

virtualized_iterator

template<typename T >

using System::Collections::Generic::IEnumerable< T >::virtualized_iterator = System::Details::VirtualizedIteratorBase<T>

Inner iterator base type.

virtualized_iterator_element

template<typename T >

using System::Collections::Generic::IEnumerable< T >::virtualized_iterator_element = T

Inner iterator element type.

Constructor & Destructor Documentation

~IEnumerable()

template<typename T >

System::Collections::Generic::IEnumerable< T >::~IEnumerable ( )

inlineoverrideprotected

Destructor.

Member Function Documentation

begin() [1/2]

template<typename T >

iterator System::Collections::Generic::IEnumerable< T >::begin ( )

inline

Gets iterator pointing to the first element (if any) of the collection. This iterator can't be used to change a referenced object because GetEnumerator() returns a copy-object of T.

Returns

An iterator pointing to the first element (if any) of the collection

begin() [2/2]

template<typename T >

const_iterator System::Collections::Generic::IEnumerable< T >::begin ( ) const

inline

Gets iterator pointing to the first element (if any) of the const-qualified instance of the collection.

Returns

An iterator pointing to the first element (if any) of the const-qualified instance of the collection

cbegin()

template<typename T >

const_iterator System::Collections::Generic::IEnumerable< T >::cbegin ( ) const

inline

Gets iterator pointing to the first const-qualified element (if any) of the collection.

Returns

An iterator pointing to the first const-qualified element (if any) of the collection

cend()

template<typename T >

const_iterator System::Collections::Generic::IEnumerable< T >::cend ( ) const

inline

Gets iterator pointing right after the last const-qualified element (if any) of the collection.

Returns

An iterator pointing right after the last const-qualified element (if any) of the collection

end() [1/2]

template<typename T >

iterator System::Collections::Generic::IEnumerable< T >::end ( )

inline

Gets iterator pointing right after the last element (if any) of the collection. This iterator can't be used to change a referenced object because GetEnumerator() returns a copy-object of T.

Returns

An iterator pointing right after the last element (if any) of the collection

end() [2/2]

template<typename T >

const_iterator System::Collections::Generic::IEnumerable< T >::end ( ) const

inline

Gets iterator pointing right after the last element (if any) of the const-qualified instance of the collection.

Returns

An iterator pointing right after the last element (if any) of the const-qualified instance of the collection

GetEnumerator()

template<typename T >

virtual SharedPtr< IEnumerator< T > > System::Collections::Generic::IEnumerable< T >::GetEnumerator ( )

pure virtual

Gets enumerator.

Returns

Pointer to newly created enumerator object which can be used to iterate through interfaced object.

Implemented in System::Net::CookieCollection, System::Net::Http::Headers::HttpHeaderValueCollection< T >, System::Net::Http::Headers::HttpHeaderValueCollection< System::String >, System::Net::Http::Headers::HttpHeaders, System::Security::Cryptography::Xml::KeyInfo, System::Array< T >, System::Collections::Generic::BaseSet< T, SET_T >, System::Collections::Generic::BaseSet< T, std::unordered_set< T, EqualityComparerHashAdapter< T >, EqualityComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >, System::Collections::Generic::BaseSet< T, std::set< T, ComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >, System::Collections::BitArray, System::Collections::CollectionBase< T >, System::Collections::CollectionBase< SharedPtr< System::Xml::Schema::XmlSchemaObject > >, System::Collections::Generic::Dictionary< TKey, TValue >, System::Collections::Generic::Dictionary< String, String >, System::Collections::Generic::_KeyCollection< Dict >, System::Collections::Generic::_ValueCollection< Dict >, System::Collections::Generic::LinkedList< T >, System::Collections::Generic::List< T >, System::Collections::Generic::List< SharedPtr< X509Certificate2 > >, System::Collections::Generic::List< SharedPtr< X509Certificate > >, System::Collections::Generic::List< SharedPtr< X509Extension > >, System::Collections::Generic::List< CapturePtr >, System::Collections::Generic::List< GroupPtr >, System::Collections::Generic::List< MatchPtr >, System::Collections::Generic::List< System::SharedPtr< SoapHeader > >, System::Collections::ObjectModel::Collection< T >, System::Collections::ObjectModel::Collection< TItem >, System::Collections::Generic::Queue< T >, System::Collections::ObjectModel::ReadOnlyCollection< T >, System::Collections::Generic::SortedDictionary< TKey, TValue >, System::Collections::Generic::SortedList< TKey, TValue >, System::Collections::Specialized::NameValueCollection, System::Collections::Specialized::StringCollection, System::Collections::Generic::Stack< T >, System::Linq::Details::EmptyEnumerable< T >, System::Linq::Details::CachedEnumerable< TItem >, System::Linq::IOrderedEnumerable< T >, System::Windows::Forms::Control::ControlCollection, System::Xml::Schema::XmlSchemaCollection, System::Xml::Schema::XmlSchemaObjectCollection, System::Xml::Schema::XmlSchemaObjectTable, System::Xml::XmlNamedNodeMap, System::Xml::XmlNamespaceManager, System::Xml::XmlNode, System::Xml::XPath::XPathNodeIterator, System::Collections::Generic::BaseDictionary< Map >, System::Collections::Generic::BaseDictionary< std::unordered_map< TKey, TValue, EqualityComparerHashAdapter< TKey >, EqualityComparerAdapter< TKey >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)> >, System::Collections::Generic::BaseDictionary< std::map< TKey, TValue, ComparerAdapter< BasePointerType< TKey >::type >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)> >, System::Collections::Generic::BaseDictionary< Detail::FlatMap< TKey, TValue, ComparerAdapter< TKey > > >, System::Collections::Generic::BaseDictionary< std::unordered_map< String, String, EqualityComparerHashAdapter< String >, EqualityComparerAdapter< String >, ASPOSE_MAP_ALLOCATOR_TYPE(String, String)> >, System::Collections::Generic::IKVCollection< T >, System::Collections::Generic::IKVCollection< KV >, System::Collections::Generic::IKVCollection< Dict::map_t::key_type >, System::Collections::Generic::IKVCollection< Dict::map_t::mapped_type >, and System::Xml::XmlNodeList.

GetEnumeratorAsVirtualizedIterator() [1/2]

template<typename T >

virtualized_iterator * System::Collections::Generic::IEnumerable< T >::GetEnumeratorAsVirtualizedIterator ( )

inlineprotected

Gets enumerator instance and prepares it to be used as iterator kernel.

Returns

Pointer to the newly created iterator kernel object.

GetEnumeratorAsVirtualizedIterator() [2/2]

template<typename T >

virtualized_iterator * System::Collections::Generic::IEnumerable< T >::GetEnumeratorAsVirtualizedIterator ( ) const

inlineprotected

Gets enumerator instance and prepares it to be used as iterator kernel.

Returns

Pointer to the newly created iterator kernel object.

LINQ_Aggregate()

template<typename T >

T System::Collections::Generic::IEnumerable< T >::LINQ_Aggregate

(

const Func< T, T, T > &

func

)

Applies an accumulator function over a sequence.

Parameters

func	An accumulator function to be invoked on each element.

Returns

The final accumulator value.

LINQ_All()

template<typename T >

bool System::Collections::Generic::IEnumerable< T >::LINQ_All

(

std::function< bool(T)>

predicate

)

Determines whether all elements of a sequence satisfy a condition.

Parameters

predicate

A function to test each element for a condition.

Returns

true if every element of the source sequence passes the test in the specified predicate, or if the sequence is empty; otherwise, false.

LINQ_Any() [1/2]

template<typename T >

bool System::Collections::Generic::IEnumerable< T >::LINQ_Any

Determines whether a sequence contains any elements.

Returns

true if the source sequence contains any elements; otherwise, false.

LINQ_Any() [2/2]

template<typename T >

bool System::Collections::Generic::IEnumerable< T >::LINQ_Any

(

std::function< bool(T)>

predicate

)

Determines whether any element of a sequence exists or satisfies a condition.

Parameters

predicate

A function to test each element for a condition.

Returns

true if the source sequence contains any elements; otherwise, false.

LINQ_Cast() [1/2]

template<typename T >

template<typename ResultType >

SharedPtr< IEnumerable< ResultType > > System::Collections::Generic::IEnumerable< T >::LINQ_Cast

(

)

Casts the elements to the specified type.

Template Parameters

ResultType

The type to cast the elements of the sequence.

Returns

An IEnumerable that contains elements of the sequence cast the ResultType.

Exceptions

InvalidCastException

Element of the sequence cannot be cast to the ResultType.

LINQ_Cast() [2/2]

template<typename T >

template<typename Result >

SharedPtr< IEnumerable< Result > > System::Collections::Generic::IEnumerable< T >::LINQ_Cast

(

)

LINQ_Concat()

template<typename T >

SharedPtr< IEnumerable< Source > > System::Collections::Generic::IEnumerable< Source >::LINQ_Concat

(

SharedPtr< IEnumerable< T > >

sequence

)

Concatenates two sequences.

Parameters

sequence

The sequence will be concatenated with the current one.

Returns

An IEnumerable that contains the concatenated elements of the two input sequences.

LINQ_Contains()

template<typename T >

bool System::Collections::Generic::IEnumerable< T >::LINQ_Contains

(

T

value

)

Determines if a sequence contains a specified value.

Parameters

value

The value to locate in the sequence.

Returns

true if the sequence contains the specified value, otherwise false.

LINQ_Count() [1/2]

template<typename T >

int System::Collections::Generic::IEnumerable< T >::LINQ_Count

Returns the number of elements in the sequence (calculated via direct counting).

Returns

Number of elements in the sequence.

LINQ_Count() [2/2]

template<typename T >

int System::Collections::Generic::IEnumerable< T >::LINQ_Count

(

const Func< T, bool > &

predicate

)

Returns the number of elements in the sequence that satisfy the specified condition.

Parameters

predicate

A function to test each element for a condition.

Returns

Number of elements in the sequence that satisfy the specified condition.

LINQ_ElementAt()

template<typename T >

T System::Collections::Generic::IEnumerable< T >::LINQ_ElementAt

(

int

index

)

Returns the element at a specified index in a sequence.

Parameters

index

Index to get element at.

Returns

Element at specified index.

LINQ_ElementAtOrDefault()

template<typename T >

T System::Collections::Generic::IEnumerable< T >::LINQ_ElementAtOrDefault

(

int

index

)

Returns the element at a specified index in a sequence.

Parameters

index

Index to get element at.

Returns

Element at specified index or default-constructed value if not found.

LINQ_First() [1/2]

template<typename T >

T System::Collections::Generic::IEnumerable< T >::LINQ_First

Returns the first element of a sequence.

Returns

First element in the sequence.

Exceptions

InvalidOperationException

Source sequence is empty.

LINQ_First() [2/2]

template<typename T >

T System::Collections::Generic::IEnumerable< T >::LINQ_First

(

const Func< T, bool > &

predicate

)

Returns the first element of a sequence that satisfy the specified condition.

Parameters

predicate

A function to test each element for a condition.

Returns

First element in the sequence that satisfy the specified condition.

Exceptions

InvalidOperationException

No element satisfy the specified condition.

LINQ_FirstOrDefault() [1/2]

template<typename T >

T System::Collections::Generic::IEnumerable< T >::LINQ_FirstOrDefault

Returns the first element of a sequence, or a default value if the sequence is empty.

Returns

First element in the sequence or default-constructed value if the sequence is empty.

LINQ_FirstOrDefault() [2/2]

template<typename T >

T System::Collections::Generic::IEnumerable< T >::LINQ_FirstOrDefault

(

std::function< bool(T)>

predicate

)

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

Parameters

predicate

A function to test each element for a condition.

Returns

default(T) if source is empty or if no element passes the test specified by predicate; otherwise, the first element in source that passes the test specified by predicate.

LINQ_GroupBy() [1/4]

template<typename T >

template<typename Key >

SharedPtr< IEnumerable< SharedPtr< System::Linq::IGrouping< Key, Source > > > > System::Collections::Generic::IEnumerable< T >::LINQ_GroupBy

(

System::Func< Source, Key >

keyPredicate

)

LINQ_GroupBy() [2/4]

template<typename T >

template<typename Key , typename Element >

SharedPtr< IEnumerable< SharedPtr< System::Linq::IGrouping< Key, Element > > > > System::Collections::Generic::IEnumerable< T >::LINQ_GroupBy	(	System::Func< Source, Key >	keyPredicate,
		System::Func< Source, Element >	elementSelector
	)

LINQ_GroupBy() [3/4]

template<typename T >

template<typename Key >

System::SharedPtr< IEnumerable< System::SharedPtr< System::Linq::IGrouping< Key, T > > > > System::Collections::Generic::IEnumerable< T >::LINQ_GroupBy

(

System::Func< T, Key >

keyPredicate

)

Groups the elements of a sequence.

Template Parameters

Key	The type of the key returned by keyPredicate

Parameters

keyPredicate

A function to extract the key for each element.

Returns

An IEnumerable that contains a sequence of objects and a key

LINQ_GroupBy() [4/4]

template<typename T >

template<typename Key , typename Element >

System::SharedPtr< IEnumerable< System::SharedPtr< System::Linq::IGrouping< Key, Element > > > > System::Collections::Generic::IEnumerable< T >::LINQ_GroupBy	(	System::Func< T, Key >	keyPredicate,
		System::Func< T, Element >	elementSelector
	)

Groups the elements of a sequence.

Template Parameters

Key	The type of the key returned by keyPredicate
Element	The type of the element returned by elementSelector

Parameters

keyPredicate	A function to extract the key for each element.
elementSelector	A function to extract value key for each element.

Returns

An IEnumerable that contains a sequence of objects and a key

LINQ_Last()

template<typename T >

T System::Collections::Generic::IEnumerable< T >::LINQ_Last

Returns the last element of a sequence.

Returns

Last element in the sequence.

Exceptions

InvalidOperationException

Source sequence is empty.

LINQ_LastOrDefault()

template<typename T >

T System::Collections::Generic::IEnumerable< T >::LINQ_LastOrDefault

Returns the last element of a sequence, or a default value if the sequence is empty.

Returns

Last element in the sequence or default-constructed value if the sequence is empty.

LINQ_Max() [1/2]

template<typename T >

template<typename ResultType >

ResultType System::Collections::Generic::IEnumerable< T >::LINQ_Max

(

const Func< Source, ResultType > &

selector

)

LINQ_Max() [2/2]

template<typename T >

template<typename ResultType >

ResultType System::Collections::Generic::IEnumerable< T >::LINQ_Max

(

const Func< T, ResultType > &

selector

)

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

Parameters

selector

A transform function to apply to each element.

Template Parameters

ResultType

The type of the value returned by selector.

Returns

The maximum value in the sequence.

LINQ_Min() [1/2]

template<typename T >

template<typename ResultType >

ResultType System::Collections::Generic::IEnumerable< T >::LINQ_Min

(

const Func< Source, ResultType > &

selector

)

LINQ_Min() [2/2]

template<typename T >

template<typename ResultType >

ResultType System::Collections::Generic::IEnumerable< T >::LINQ_Min

(

const Func< T, ResultType > &

selector

)

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

Parameters

selector

A transform function to apply to each element.

Template Parameters

ResultType

The type of the value returned by selector.

Returns

The minimum value in the sequence.

LINQ_OfType() [1/2]

template<typename T >

template<typename ResultType >

SharedPtr< IEnumerable< ResultType > > System::Collections::Generic::IEnumerable< T >::LINQ_OfType

(

)

Filters the elements of the sequence based on the specified type.

Template Parameters

ResultType

The type to filter the elements of the sequence.

Returns

An IEnumerable that contains elements from the sequence of the ResultType.

LINQ_OfType() [2/2]

template<typename T >

template<typename Result >

SharedPtr< IEnumerable< Result > > System::Collections::Generic::IEnumerable< T >::LINQ_OfType

(

)

LINQ_OrderBy() [1/2]

template<typename T >

template<typename Key >

SharedPtr< Linq::IOrderedEnumerable< Source > > System::Collections::Generic::IEnumerable< T >::LINQ_OrderBy

(

const Func< Source, Key > &

keySelector

)

LINQ_OrderBy() [2/2]

template<typename T >

template<typename Key >

SharedPtr< Linq::IOrderedEnumerable< T > > System::Collections::Generic::IEnumerable< T >::LINQ_OrderBy

(

const Func< T, Key > &

keySelector

)

Sorts the elements of a sequence in ascending order according to the key values selected by keySelector.

Template Parameters

keySelector

A function to extract a key from an element.

Returns

An IOrderedEnumerable whose elements are sorted according to a key

LINQ_OrderByDescending() [1/2]

template<typename T >

template<typename Key >

SharedPtr< Linq::IOrderedEnumerable< Source > > System::Collections::Generic::IEnumerable< T >::LINQ_OrderByDescending

(

const Func< Source, Key > &

keySelector

)

LINQ_OrderByDescending() [2/2]

template<typename T >

template<typename Key >

SharedPtr< Linq::IOrderedEnumerable< T > > System::Collections::Generic::IEnumerable< T >::LINQ_OrderByDescending

(

const Func< T, Key > &

keySelector

)

Sorts the elements of a sequence in descending order according to the key values selected by keySelector.

Template Parameters

keySelector

A function to extract a key from an element.

Returns

An IOrderedEnumerable whose elements are sorted to the descending order of the key

LINQ_Reverse()

template<typename Source >

SharedPtr< IEnumerable< Source > > System::Collections::Generic::IEnumerable< Source >::LINQ_Reverse

Inverts the order of the elements in a sequence.

Returns

A sequence whose elements correspond to those of the input sequence in reverse order.

LINQ_Select() [1/4]

template<typename T >

template<typename Result >

SharedPtr< IEnumerable< Result > > System::Collections::Generic::IEnumerable< T >::LINQ_Select

(

const Func< Source, int32_t, Result > &

selector

)

LINQ_Select() [2/4]

template<typename T >

template<typename Result >

SharedPtr< IEnumerable< Result > > System::Collections::Generic::IEnumerable< T >::LINQ_Select

(

const Func< Source, Result > &

selector

)

LINQ_Select() [3/4]

template<typename T >

template<typename ResultType >

SharedPtr< IEnumerable< ResultType > > System::Collections::Generic::IEnumerable< T >::LINQ_Select

(

const Func< T, int32_t, ResultType > &

selector

)

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

Template Parameters

ResultType

The type of the value returned by the selector.

Parameters

selector

A transform function.

Returns

An IEnumerable that contains elements returned by the selector function.

LINQ_Select() [4/4]

template<typename T >

template<typename ResultType >

SharedPtr< IEnumerable< ResultType > > System::Collections::Generic::IEnumerable< T >::LINQ_Select

(

const Func< T, ResultType > &

selector

)

Transforms elements of a sequence.

Template Parameters

ResultType

The type of the value returned by the selector.

Parameters

selector

A transform function.

Returns

An IEnumerable that contains elements returned by the selector function.

LINQ_SelectMany() [1/2]

template<typename T >

template<typename Result >

SharedPtr< IEnumerable< Result > > System::Collections::Generic::IEnumerable< T >::LINQ_SelectMany

(

const Func< Source, SharedPtr< IEnumerable< Result > > > &

selector

)

LINQ_SelectMany() [2/2]

template<typename T >

template<typename ResultType >

SharedPtr< IEnumerable< ResultType > > System::Collections::Generic::IEnumerable< T >::LINQ_SelectMany

(

const Func< T, SharedPtr< IEnumerable< ResultType > > > &

selector

)

Projects each element of a sequence and combines the resulting sequences into one sequence.

Template Parameters

ResultType

The type of the value returned by the selector.

Parameters

selector

A transform function.

Returns

An IEnumerable that contains the result of invoking a one-to-many projection function on each element of the input sequence.

LINQ_Take()

template<typename Source >

SharedPtr< IEnumerable< Source > > System::Collections::Generic::IEnumerable< Source >::LINQ_Take

(

int32_t

count

)

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

Parameters

count

The number of elements to return.

Returns

An System.Collections.Generic.IEnumerable that contains the specified number of elements from the start of the input sequence.

LINQ_ToArray()

template<typename T >

System::ArrayPtr< T > System::Collections::Generic::IEnumerable< T >::LINQ_ToArray

Creates an array from a sequence.

Returns

Array that contains all elements of current sequence.

LINQ_ToList()

template<typename T >

System::SharedPtr< Collections::Generic::List< T > > System::Collections::Generic::IEnumerable< T >::LINQ_ToList

Creates a List<T> from a sequence.

Returns

The list containing all elements of specified sequence.

LINQ_Where()

template<typename T >

SharedPtr< IEnumerable< T > > System::Collections::Generic::IEnumerable< T >::LINQ_Where

(

std::function< bool(T)>

predicate

)

Filters a sequence based on the specified predicate.

Parameters

predicate

A function that test each elements for some condition.

Returns

An IEnumerable that contains filtered elements.

virtualizeBeginConstIterator()

template<typename T >

virtual virtualized_iterator * System::Collections::Generic::IEnumerable< T >::virtualizeBeginConstIterator ( ) const

inlinevirtual

Gets the implementation of begin const iterator for the current container.

Returns

Pointer to the newly created iterator kernel object.

Reimplemented in System::Net::CookieCollection, System::Security::Cryptography::Xml::KeyInfo, System::Array< T >, System::Collections::Generic::BaseDictionary< Map >, System::Collections::Generic::BaseDictionary< std::unordered_map< TKey, TValue, EqualityComparerHashAdapter< TKey >, EqualityComparerAdapter< TKey >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)> >, System::Collections::Generic::BaseDictionary< std::map< TKey, TValue, ComparerAdapter< BasePointerType< TKey >::type >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)> >, System::Collections::Generic::BaseDictionary< Detail::FlatMap< TKey, TValue, ComparerAdapter< TKey > > >, System::Collections::Generic::BaseDictionary< std::unordered_map< String, String, EqualityComparerHashAdapter< String >, EqualityComparerAdapter< String >, ASPOSE_MAP_ALLOCATOR_TYPE(String, String)> >, System::Collections::Generic::BaseSet< T, SET_T >, System::Collections::Generic::BaseSet< T, std::unordered_set< T, EqualityComparerHashAdapter< T >, EqualityComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >, System::Collections::Generic::BaseSet< T, std::set< T, ComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >, System::Collections::BitArray, System::Collections::Generic::_KeyCollection< Dict >, System::Collections::Generic::_ValueCollection< Dict >, System::Collections::Generic::LinkedList< T >, System::Collections::Generic::List< T >, System::Collections::Generic::List< SharedPtr< X509Certificate2 > >, System::Collections::Generic::List< SharedPtr< X509Certificate > >, System::Collections::Generic::List< SharedPtr< X509Extension > >, System::Collections::Generic::List< CapturePtr >, System::Collections::Generic::List< GroupPtr >, System::Collections::Generic::List< MatchPtr >, System::Collections::Generic::List< System::SharedPtr< SoapHeader > >, System::Collections::ObjectModel::Collection< T >, System::Collections::ObjectModel::Collection< TItem >, System::Collections::Generic::Queue< T >, System::Collections::ObjectModel::ReadOnlyCollection< T >, System::Collections::Specialized::NameValueCollection, System::Collections::Specialized::StringCollection, and System::Collections::Generic::Stack< T >.

virtualizeBeginIterator()

template<typename T >

virtual virtualized_iterator * System::Collections::Generic::IEnumerable< T >::virtualizeBeginIterator ( )

inlinevirtual

Gets the implementation of begin iterator for the current container.

Returns

Pointer to the newly created iterator kernel object.

Reimplemented in System::Net::CookieCollection, System::Security::Cryptography::Xml::KeyInfo, System::Array< T >, System::Collections::Generic::BaseDictionary< Map >, System::Collections::Generic::BaseDictionary< std::unordered_map< TKey, TValue, EqualityComparerHashAdapter< TKey >, EqualityComparerAdapter< TKey >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)> >, System::Collections::Generic::BaseDictionary< std::map< TKey, TValue, ComparerAdapter< BasePointerType< TKey >::type >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)> >, System::Collections::Generic::BaseDictionary< Detail::FlatMap< TKey, TValue, ComparerAdapter< TKey > > >, System::Collections::Generic::BaseDictionary< std::unordered_map< String, String, EqualityComparerHashAdapter< String >, EqualityComparerAdapter< String >, ASPOSE_MAP_ALLOCATOR_TYPE(String, String)> >, System::Collections::Generic::BaseSet< T, SET_T >, System::Collections::Generic::BaseSet< T, std::unordered_set< T, EqualityComparerHashAdapter< T >, EqualityComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >, System::Collections::Generic::BaseSet< T, std::set< T, ComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >, System::Collections::BitArray, System::Collections::Generic::_KeyCollection< Dict >, System::Collections::Generic::_ValueCollection< Dict >, System::Collections::Generic::LinkedList< T >, System::Collections::Generic::List< T >, System::Collections::Generic::List< SharedPtr< X509Certificate2 > >, System::Collections::Generic::List< SharedPtr< X509Certificate > >, System::Collections::Generic::List< SharedPtr< X509Extension > >, System::Collections::Generic::List< CapturePtr >, System::Collections::Generic::List< GroupPtr >, System::Collections::Generic::List< MatchPtr >, System::Collections::Generic::List< System::SharedPtr< SoapHeader > >, System::Collections::ObjectModel::Collection< T >, System::Collections::ObjectModel::Collection< TItem >, System::Collections::Generic::Queue< T >, System::Collections::ObjectModel::ReadOnlyCollection< T >, System::Collections::Specialized::NameValueCollection, System::Collections::Specialized::StringCollection, and System::Collections::Generic::Stack< T >.

virtualizeEndConstIterator()

template<typename T >

virtual virtualized_iterator * System::Collections::Generic::IEnumerable< T >::virtualizeEndConstIterator ( ) const

inlinevirtual

Gets the implementation of end const iterator for the current container.

Returns

Pointer to the newly created iterator kernel object.

Reimplemented in System::Net::CookieCollection, System::Security::Cryptography::Xml::KeyInfo, System::Array< T >, System::Collections::Generic::BaseDictionary< Map >, System::Collections::Generic::BaseDictionary< std::unordered_map< TKey, TValue, EqualityComparerHashAdapter< TKey >, EqualityComparerAdapter< TKey >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)> >, System::Collections::Generic::BaseDictionary< std::map< TKey, TValue, ComparerAdapter< BasePointerType< TKey >::type >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)> >, System::Collections::Generic::BaseDictionary< Detail::FlatMap< TKey, TValue, ComparerAdapter< TKey > > >, System::Collections::Generic::BaseDictionary< std::unordered_map< String, String, EqualityComparerHashAdapter< String >, EqualityComparerAdapter< String >, ASPOSE_MAP_ALLOCATOR_TYPE(String, String)> >, System::Collections::Generic::BaseSet< T, SET_T >, System::Collections::Generic::BaseSet< T, std::unordered_set< T, EqualityComparerHashAdapter< T >, EqualityComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >, System::Collections::Generic::BaseSet< T, std::set< T, ComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >, System::Collections::BitArray, System::Collections::Generic::_KeyCollection< Dict >, System::Collections::Generic::_ValueCollection< Dict >, System::Collections::Generic::LinkedList< T >, System::Collections::Generic::List< T >, System::Collections::Generic::List< SharedPtr< X509Certificate2 > >, System::Collections::Generic::List< SharedPtr< X509Certificate > >, System::Collections::Generic::List< SharedPtr< X509Extension > >, System::Collections::Generic::List< CapturePtr >, System::Collections::Generic::List< GroupPtr >, System::Collections::Generic::List< MatchPtr >, System::Collections::Generic::List< System::SharedPtr< SoapHeader > >, System::Collections::ObjectModel::Collection< T >, System::Collections::ObjectModel::Collection< TItem >, System::Collections::Generic::Queue< T >, System::Collections::ObjectModel::ReadOnlyCollection< T >, System::Collections::Specialized::NameValueCollection, System::Collections::Specialized::StringCollection, and System::Collections::Generic::Stack< T >.

virtualizeEndIterator()

template<typename T >

virtual virtualized_iterator * System::Collections::Generic::IEnumerable< T >::virtualizeEndIterator ( )

inlinevirtual

Gets the implementation of end iterator for the current container.

Returns

Pointer to the newly created iterator kernel object.

Reimplemented in System::Net::CookieCollection, System::Security::Cryptography::Xml::KeyInfo, System::Array< T >, System::Collections::Generic::BaseDictionary< Map >, System::Collections::Generic::BaseDictionary< std::unordered_map< TKey, TValue, EqualityComparerHashAdapter< TKey >, EqualityComparerAdapter< TKey >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)> >, System::Collections::Generic::BaseDictionary< std::map< TKey, TValue, ComparerAdapter< BasePointerType< TKey >::type >, ASPOSE_MAP_ALLOCATOR_TYPE(TKey, TValue)> >, System::Collections::Generic::BaseDictionary< Detail::FlatMap< TKey, TValue, ComparerAdapter< TKey > > >, System::Collections::Generic::BaseDictionary< std::unordered_map< String, String, EqualityComparerHashAdapter< String >, EqualityComparerAdapter< String >, ASPOSE_MAP_ALLOCATOR_TYPE(String, String)> >, System::Collections::Generic::BaseSet< T, SET_T >, System::Collections::Generic::BaseSet< T, std::unordered_set< T, EqualityComparerHashAdapter< T >, EqualityComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >, System::Collections::Generic::BaseSet< T, std::set< T, ComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >, System::Collections::BitArray, System::Collections::Generic::_KeyCollection< Dict >, System::Collections::Generic::_ValueCollection< Dict >, System::Collections::Generic::LinkedList< T >, System::Collections::Generic::List< T >, System::Collections::Generic::List< SharedPtr< X509Certificate2 > >, System::Collections::Generic::List< SharedPtr< X509Certificate > >, System::Collections::Generic::List< SharedPtr< X509Extension > >, System::Collections::Generic::List< CapturePtr >, System::Collections::Generic::List< GroupPtr >, System::Collections::Generic::List< MatchPtr >, System::Collections::Generic::List< System::SharedPtr< SoapHeader > >, System::Collections::ObjectModel::Collection< T >, System::Collections::ObjectModel::Collection< TItem >, System::Collections::Generic::Queue< T >, System::Collections::ObjectModel::ReadOnlyCollection< T >, System::Collections::Specialized::NameValueCollection, System::Collections::Specialized::StringCollection, and System::Collections::Generic::Stack< T >.