
Name

Description


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

Applies an accumulator function over a sequence.
(Defined by Enumerable).


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

Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.
(Defined by Enumerable).


Aggregate<TSource, TAccumulate, TResult>(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.
(Defined by Enumerable).


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

Determines whether all elements of a sequence satisfy a condition.
(Defined by Enumerable).


Ancestors<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.
(Defined by Extensions).


Ancestors<T>()

Returns a collection of elements that contains the ancestors of every node in the source collection.
(Defined by Extensions).


Any<TSource>()

Determines whether a sequence contains any elements.
(Defined by Enumerable).


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

Determines whether any element of a sequence satisfies a condition.
(Defined by Enumerable).


Append<TSource>(TSource)

Appends a value to the end of the sequence.
(Defined by Enumerable).


AsEnumerable<TSource>()

Returns the input typed as IEnumerable<T>.
(Defined by Enumerable).


AsParallel()

Enables parallelization of a query.
(Defined by ParallelEnumerable).


AsParallel<TSource>()

Enables parallelization of a query.
(Defined by ParallelEnumerable).


AsQueryable()

Converts an IEnumerable to an IQueryable.
(Defined by Queryable).


AsQueryable<TElement>()

Converts a generic IEnumerable<T> to a generic IQueryable<T>.
(Defined by Queryable).


Average<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.
(Defined by Enumerable).


Average<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.
(Defined by Enumerable).


Average<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.
(Defined by Enumerable).


Average<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.
(Defined by Enumerable).


Average<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.
(Defined by Enumerable).


Average<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.
(Defined by Enumerable).


Average<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.
(Defined by Enumerable).


Average<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.
(Defined by Enumerable).


Average<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.
(Defined by Enumerable).


Average<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.
(Defined by Enumerable).


Cast<TResult>()

Casts the elements of an IEnumerable to the specified type.
(Defined by Enumerable).


Concat<TSource>(IEnumerable<TSource>)

Concatenates two sequences.
(Defined by Enumerable).


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

Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>.
(Defined by Enumerable).


Contains<TSource>(TSource)

Determines whether a sequence contains a specified element by using the default equality comparer.
(Defined by Enumerable).


CopyToDataTable<T>()

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


CopyToDataTable<T>(DataTable, LoadOption)

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


CopyToDataTable<T>(DataTable, LoadOption, FillErrorEventHandler)

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


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

Returns a number that represents how many elements in the specified sequence satisfy a condition.
(Defined by Enumerable).


Count<TSource>()

Returns the number of elements in a sequence.
(Defined by Enumerable).


DefaultIfEmpty<TSource>(TSource)

Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.
(Defined by Enumerable).


DefaultIfEmpty<TSource>()

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


DescendantNodes<T>()

Returns a collection of the descendant nodes of every document and element in the source collection.
(Defined by Extensions).


Descendants<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.
(Defined by Extensions).


Descendants<T>()

Returns a collection of elements that contains the descendant elements of every element and document in the source collection.
(Defined by Extensions).


Distinct<TSource>(IEqualityComparer<TSource>)

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


Distinct<TSource>()

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


ElementAt<TSource>(Int32)

Returns the element at a specified index in a sequence.
(Defined by Enumerable).


ElementAtOrDefault<TSource>(Int32)

Returns the element at a specified index in a sequence or a default value if the index is out of range.
(Defined by Enumerable).


Elements<T>()

Returns a collection of the child elements of every element and document in the source collection.
(Defined by Extensions).


Elements<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.
(Defined by Extensions).


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

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


Except<TSource>(IEnumerable<TSource>)

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


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

Returns the first element in a sequence that satisfies a specified condition.
(Defined by Enumerable).


First<TSource>()

Returns the first element of a sequence.
(Defined by Enumerable).


FirstOrDefault<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.
(Defined by Enumerable).


FirstOrDefault<TSource>()

Returns the first element of a sequence, or a default value if the sequence contains no elements.
(Defined by Enumerable).


GroupBy<TSource, TKey, TResult>(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.
(Defined by Enumerable).


GroupBy<TSource, TKey>(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.
(Defined by Enumerable).


GroupBy<TSource, TKey, TElement>(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.
(Defined by Enumerable).


GroupBy<TSource, TKey, TElement>(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.
(Defined by Enumerable).


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

Groups the elements of a sequence according to a specified key selector function.
(Defined by Enumerable).


GroupBy<TSource, TKey, TElement, TResult>(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.
(Defined by Enumerable).


GroupBy<TSource, TKey, TElement, TResult>(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.
(Defined by Enumerable).


GroupBy<TSource, TKey, TResult>(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.
(Defined by Enumerable).


GroupJoin<TOuter, TInner, TKey, TResult>(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.
(Defined by Enumerable).


GroupJoin<TOuter, TInner, TKey, TResult>(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.
(Defined by Enumerable).


InDocumentOrder<T>()

Returns a collection of nodes that contains all nodes in the source collection, sorted in document order.
(Defined by Extensions).


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

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


Intersect<TSource>(IEnumerable<TSource>)

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


Join<TOuter, TInner, TKey, TResult>(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.
(Defined by Enumerable).


Join<TOuter, TInner, TKey, TResult>(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.
(Defined by Enumerable).


Last<TSource>()

Returns the last element of a sequence.
(Defined by Enumerable).


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

Returns the last element of a sequence that satisfies a specified condition.
(Defined by Enumerable).


LastOrDefault<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.
(Defined by Enumerable).


LastOrDefault<TSource>()

Returns the last element of a sequence, or a default value if the sequence contains no elements.
(Defined by Enumerable).


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

Returns an Int64 that represents how many elements in a sequence satisfy a condition.
(Defined by Enumerable).


LongCount<TSource>()

Returns an Int64 that represents the total number of elements in a sequence.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the maximum Int32 value.
(Defined by Enumerable).


Max<TSource>()

Returns the maximum value in a generic sequence.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the maximum Decimal value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the maximum nullable Decimal value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the maximum nullable Int32 value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the maximum Int64 value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the maximum nullable Int64 value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the maximum Single value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the maximum Double value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the maximum nullable Single value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the maximum nullable Double value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the minimum nullable Int32 value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the minimum nullable Decimal value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the minimum Decimal value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the minimum nullable Double value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the minimum Double value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the minimum nullable Single value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the minimum Single value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the minimum Int64 value.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the minimum Int32 value.
(Defined by Enumerable).


Min<TSource>()

Returns the minimum value in a generic sequence.
(Defined by Enumerable).


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

Invokes a transform function on each element of a sequence and returns the minimum nullable Int64 value.
(Defined by Enumerable).


Nodes<T>()

Returns a collection of the child nodes of every document and element in the source collection.
(Defined by Extensions).


OfType<TResult>()

Filters the elements of an IEnumerable based on a specified type.
(Defined by Enumerable).


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

Sorts the elements of a sequence in ascending order by using a specified comparer.
(Defined by Enumerable).


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

Sorts the elements of a sequence in ascending order according to a key.
(Defined by Enumerable).


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

Sorts the elements of a sequence in descending order by using a specified comparer.
(Defined by Enumerable).


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

Sorts the elements of a sequence in descending order according to a key.
(Defined by Enumerable).


Prepend<TSource>(TSource)

Adds a value to the beginning of the sequence.
(Defined by Enumerable).


Remove<T>()

Removes every node in the source collection from its parent node.
(Defined by Extensions).


Reverse<TSource>()

Inverts the order of the elements in a sequence.
(Defined by Enumerable).


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

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


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

Projects each element of a sequence into a new form.
(Defined by Enumerable).


SelectMany<TSource, TCollection, TResult>(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.
(Defined by Enumerable).


SelectMany<TSource, TCollection, TResult>(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.
(Defined by Enumerable).


SelectMany<TSource, TResult>(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.
(Defined by Enumerable).


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

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


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

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


SequenceEqual<TSource>(IEnumerable<TSource>)

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


Single<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.
(Defined by Enumerable).


Single<TSource>()

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


SingleOrDefault<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.
(Defined by Enumerable).


SingleOrDefault<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.
(Defined by Enumerable).


Skip<TSource>(Int32)

Bypasses a specified number of elements in a sequence and then returns the remaining elements.
(Defined by Enumerable).


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

Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.
(Defined by Enumerable).


SkipWhile<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.
(Defined by Enumerable).


Sum<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.
(Defined by Enumerable).


Sum<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.
(Defined by Enumerable).


Sum<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.
(Defined by Enumerable).


Sum<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.
(Defined by Enumerable).


Sum<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.
(Defined by Enumerable).


Sum<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.
(Defined by Enumerable).


Sum<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.
(Defined by Enumerable).


Sum<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.
(Defined by Enumerable).


Sum<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.
(Defined by Enumerable).


Sum<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.
(Defined by Enumerable).


Take<TSource>(Int32)

Returns a specified number of contiguous elements from the start of a sequence.
(Defined by Enumerable).


TakeWhile<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.
(Defined by Enumerable).


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

Returns elements from a sequence as long as a specified condition is true.
(Defined by Enumerable).


ToArray<TSource>()

Creates an array from a IEnumerable<T>.
(Defined by Enumerable).


ToDictionary<TSource, TKey, TElement>(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.
(Defined by Enumerable).


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

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


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

Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to a specified key selector function.
(Defined by Enumerable).


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

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


ToHashSet<TSource>(IEqualityComparer<TSource>)

Creates a HashSet<T> from an IEnumerable<T> using the comparer to compare keys
(Defined by Enumerable).


ToHashSet<TSource>()

Creates a HashSet<T> from an IEnumerable<T>.
(Defined by Enumerable).


ToList<TSource>()

Creates a List<T> from an IEnumerable<T>.
(Defined by Enumerable).


ToLookup<TSource, TKey, TElement>(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.
(Defined by Enumerable).


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

Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to a specified key selector function.
(Defined by Enumerable).


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

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


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

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


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

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


Union<TSource>(IEnumerable<TSource>)

Produces the set union of two sequences by using the default equality comparer.
(Defined by Enumerable).


Where<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.
(Defined by Enumerable).


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

Filters a sequence of values based on a predicate.
(Defined by Enumerable).


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

Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.
(Defined by Enumerable).
