ParallelEnumerable Class

Provides a set of methods for querying objects that implement ParallelQuery{TSource}. This is the parallel equivalent of Enumerable.

System::Object
  System.Linq::ParallelEnumerable

Namespace:  System.Linq
Assembly:  System.Core (in System.Core.dll)

[ExtensionAttribute]
public ref class ParallelEnumerable abstract sealed

The ParallelEnumerable type exposes the following members.

  NameDescription
Public methodStatic memberAggregate<TSource>(ParallelQuery<TSource>, Func<TSource, TSource, TSource>)Applies in parallel an accumulator function over a sequence.
Public methodStatic memberAggregate<TSource, TAccumulate>(ParallelQuery<TSource>, TAccumulate, Func<TAccumulate, TSource, TAccumulate>)Applies in parallel an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.
Public methodStatic memberAggregate<TSource, TAccumulate, TResult>(ParallelQuery<TSource>, TAccumulate, Func<TAccumulate, TSource, TAccumulate>, Func<TAccumulate, TResult>)Applies in parallel 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.
Public methodStatic memberAggregate<TSource, TAccumulate, TResult>(ParallelQuery<TSource>, Func<TAccumulate>, Func<TAccumulate, TSource, TAccumulate>, Func<TAccumulate, TAccumulate, TAccumulate>, Func<TAccumulate, TResult>)Applies in parallel an accumulator function over a sequence. This overload is not available in the sequential implementation.
Public methodStatic memberAggregate<TSource, TAccumulate, TResult>(ParallelQuery<TSource>, TAccumulate, Func<TAccumulate, TSource, TAccumulate>, Func<TAccumulate, TAccumulate, TAccumulate>, Func<TAccumulate, TResult>)Applies in parallel an accumulator function over a sequence. This overload is not available in the sequential implementation.
Public methodStatic memberAll<TSource>Determines in parallel whether all elements of a sequence satisfy a condition.
Public methodStatic memberAny<TSource>(ParallelQuery<TSource>)Determines whether a parallel sequence contains any elements.
Public methodStatic memberAny<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Determines in parallel whether any element of a sequence satisfies a condition.
Public methodStatic memberAsEnumerable<TSource>Converts a ParallelQuery<TSource> into an IEnumerable<T> to force sequential evaluation of the query.
Public methodStatic memberAsOrdered(ParallelQuery)Enables treatment of a data source as if it was ordered, overriding the default of unordered. AsOrdered may only be invoked on non-generic sequences returned by AsParallel, ParallelEnumerable.Range, and ParallelEnumerable.Repeat.
Public methodStatic memberAsOrdered<TSource>(ParallelQuery<TSource>)Enables treatment of a data source as if it was ordered, overriding the default of unordered. AsOrdered may only be invoked on generic sequences returned by AsParallel, ParallelEnumerable.Range, and ParallelEnumerable.Repeat.
Public methodStatic memberAsParallel(IEnumerable)Enables parallelization of a query.
Public methodStatic memberAsParallel<TSource>(IEnumerable<TSource>)Enables parallelization of a query.
Public methodStatic memberAsParallel<TSource>(Partitioner<TSource>)Enables parallelization of a query, as sourced by a custom partitioner that is responsible for splitting the input sequence into partitions.
Public methodStatic memberAsSequential<TSource>Converts a ParallelQuery<TSource> into an IEnumerable<T> to force sequential evaluation of the query.
Public methodStatic memberAsUnordered<TSource>Allows an intermediate query to be treated as if no ordering is implied among the elements.
Public methodStatic memberAverage(ParallelQuery<Decimal>)Computes in parallel the average of a sequence of values.
Public methodStatic memberAverage(ParallelQuery<Nullable<Decimal>>)Computes in parallel the average of a sequence of values.
Public methodStatic memberAverage(ParallelQuery<Double>)Computes in parallel the average of a sequence of values.
Public methodStatic memberAverage(ParallelQuery<Nullable<Double>>)Computes in parallel the average of a sequence of values.
Public methodStatic memberAverage(ParallelQuery<Int32>)Computes in parallel the average of a sequence of values.
Public methodStatic memberAverage(ParallelQuery<Nullable<Int32>>)Computes in parallel the average of a sequence of values.
Public methodStatic memberAverage(ParallelQuery<Int64>)Computes in parallel the average of a sequence of values.
Public methodStatic memberAverage(ParallelQuery<Nullable<Int64>>)Computes in parallel the average of a sequence of values.
Public methodStatic memberAverage(ParallelQuery<Nullable<Single>>)Computes in parallel the average of a sequence of values.
Public methodStatic memberAverage(ParallelQuery<Single>)Computes in parallel the average of a sequence of values.
Public methodStatic memberAverage<TSource>(ParallelQuery<TSource>, Func<TSource, Decimal>)Computes in parallel the average of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberAverage<TSource>(ParallelQuery<TSource>, Func<TSource, Double>)Computes in parallel the average of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberAverage<TSource>(ParallelQuery<TSource>, Func<TSource, Int32>)Computes in parallel the average of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberAverage<TSource>(ParallelQuery<TSource>, Func<TSource, Int64>)Computes in parallel the average of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberAverage<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Decimal>>)Computes in parallel the average of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberAverage<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Double>>)Computes in parallel the average of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberAverage<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Int32>>)Computes in parallel the average of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberAverage<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Int64>>)Computes in parallel the average of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberAverage<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Single>>)Computes in parallel the average of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberAverage<TSource>(ParallelQuery<TSource>, Func<TSource, Single>)Computes in parallel the average of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberCast<TResult>Converts the elements of a ParallelQuery to the specified type.
Public methodStatic memberConcat<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>) Obsolete. This Concat overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberConcat<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>)Concatenates two parallel sequences.
Public methodStatic memberContains<TSource>(ParallelQuery<TSource>, TSource)Determines in parallel whether a sequence contains a specified element by using the default equality comparer.
Public methodStatic memberContains<TSource>(ParallelQuery<TSource>, TSource, IEqualityComparer<TSource>)Determines in parallel whether a sequence contains a specified element by using a specified IEqualityComparer<T>.
Public methodStatic memberCount<TSource>(ParallelQuery<TSource>)Returns the number of elements in a parallel sequence.
Public methodStatic memberCount<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Returns a number that represents how many elements in the specified parallel sequence satisfy a condition.
Public methodStatic memberDefaultIfEmpty<TSource>(ParallelQuery<TSource>)Returns the elements of the specified parallel sequence or the type parameter's default value in a singleton collection if the sequence is empty.
Public methodStatic memberDefaultIfEmpty<TSource>(ParallelQuery<TSource>, TSource)Returns the elements of the specified parallel sequence or the specified value in a singleton collection if the sequence is empty.
Public methodStatic memberDistinct<TSource>(ParallelQuery<TSource>)Returns distinct elements from a parallel sequence by using the default equality comparer to compare values.
Public methodStatic memberDistinct<TSource>(ParallelQuery<TSource>, IEqualityComparer<TSource>)Returns distinct elements from a parallel sequence by using a specified IEqualityComparer<T> to compare values.
Public methodStatic memberElementAt<TSource>Returns the element at a specified index in a parallel sequence.
Public methodStatic memberElementAtOrDefault<TSource>Returns the element at a specified index in a parallel sequence or a default value if the index is out of range.
Public methodStatic memberEmpty<TResult>Returns an empty ParallelQuery{TResult} that has the specified type argument.
Public methodStatic memberExcept<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>) Obsolete. This Except overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberExcept<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>)Produces the set difference of two parallel sequences by using the default equality comparer to compare values.
Public methodStatic memberExcept<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Obsolete. This Except overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberExcept<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>, IEqualityComparer<TSource>)Produces the set difference of two parallel sequences by using the specified IEqualityComparer<T> to compare values.
Public methodStatic memberFirst<TSource>(ParallelQuery<TSource>)Returns the first element of a parallel sequence.
Public methodStatic memberFirst<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Returns the first element in a parallel sequence that satisfies a specified condition.
Public methodStatic memberFirstOrDefault<TSource>(ParallelQuery<TSource>)Returns the first element of a parallel sequence, or a default value if the sequence contains no elements.
Public methodStatic memberFirstOrDefault<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Returns the first element of the parallel sequence that satisfies a condition or a default value if no such element is found.
Public methodStatic memberForAll<TSource>Invokes in parallel the specified action for each element in the source.
Public methodStatic memberGroupBy<TSource, TKey>(ParallelQuery<TSource>, Func<TSource, TKey>)Groups in parallel the elements of a sequence according to a specified key selector function.
Public methodStatic memberGroupBy<TSource, TKey>(ParallelQuery<TSource>, Func<TSource, TKey>, IEqualityComparer<TKey>)Groups in parallel the elements of a sequence according to a specified key selector function and compares the keys by using a specified IComparer<T>.
Public methodStatic memberGroupBy<TSource, TKey, TElement>(ParallelQuery<TSource>, Func<TSource, TKey>, Func<TSource, TElement>)Groups in parallel the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.
Public methodStatic memberGroupBy<TSource, TKey, TResult>(ParallelQuery<TSource>, Func<TSource, TKey>, Func<TKey, IEnumerable<TSource>, TResult>)Groups in parallel the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
Public methodStatic memberGroupBy<TSource, TKey, TElement>(ParallelQuery<TSource>, Func<TSource, TKey>, Func<TSource, TElement>, IEqualityComparer<TKey>)Groups in parallel 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.
Public methodStatic memberGroupBy<TSource, TKey, TResult>(ParallelQuery<TSource>, Func<TSource, TKey>, Func<TKey, IEnumerable<TSource>, TResult>, IEqualityComparer<TKey>)Groups in parallel 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.
Public methodStatic memberGroupBy<TSource, TKey, TElement, TResult>(ParallelQuery<TSource>, Func<TSource, TKey>, Func<TSource, TElement>, Func<TKey, IEnumerable<TElement>, TResult>)Groups in parallel 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.
Public methodStatic memberGroupBy<TSource, TKey, TElement, TResult>(ParallelQuery<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.
Public methodStatic memberGroupJoin<TOuter, TInner, TKey, TResult>(ParallelQuery<TOuter>, IEnumerable<TInner>, Func<TOuter, TKey>, Func<TInner, TKey>, Func<TOuter, IEnumerable<TInner>, TResult>) Obsolete. This GroupJoin overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberGroupJoin<TOuter, TInner, TKey, TResult>(ParallelQuery<TOuter>, ParallelQuery<TInner>, Func<TOuter, TKey>, Func<TInner, TKey>, Func<TOuter, IEnumerable<TInner>, TResult>)Correlates in parallel the elements of two sequences based on equality of keys and groups the results. The default equality comparer is used to compare keys.
Public methodStatic memberGroupJoin<TOuter, TInner, TKey, TResult>(ParallelQuery<TOuter>, IEnumerable<TInner>, Func<TOuter, TKey>, Func<TInner, TKey>, Func<TOuter, IEnumerable<TInner>, TResult>, IEqualityComparer<TKey>) Obsolete. This GroupJoin overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberGroupJoin<TOuter, TInner, TKey, TResult>(ParallelQuery<TOuter>, ParallelQuery<TInner>, Func<TOuter, TKey>, Func<TInner, TKey>, Func<TOuter, IEnumerable<TInner>, TResult>, IEqualityComparer<TKey>)Correlates in parallel the elements of two sequences based on key equality and groups the results. A specified IEqualityComparer<T> is used to compare keys.
Public methodStatic memberIntersect<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>) Obsolete. This Intersect overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberIntersect<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>)Produces the set intersection of two parallel sequences by using the default equality comparer to compare values.
Public methodStatic memberIntersect<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Obsolete. This Intersect overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberIntersect<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>, IEqualityComparer<TSource>)Produces the set intersection of two parallel sequences by using the specified IEqualityComparer{T} to compare values.
Public methodStatic memberJoin<TOuter, TInner, TKey, TResult>(ParallelQuery<TOuter>, IEnumerable<TInner>, Func<TOuter, TKey>, Func<TInner, TKey>, Func<TOuter, TInner, TResult>) Obsolete. This Join overload should never be called. This method is marked as obsolete and always throws NotSupportedException when invoked.
Public methodStatic memberJoin<TOuter, TInner, TKey, TResult>(ParallelQuery<TOuter>, ParallelQuery<TInner>, Func<TOuter, TKey>, Func<TInner, TKey>, Func<TOuter, TInner, TResult>)Correlates in parallel the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.
Public methodStatic memberJoin<TOuter, TInner, TKey, TResult>(ParallelQuery<TOuter>, IEnumerable<TInner>, Func<TOuter, TKey>, Func<TInner, TKey>, Func<TOuter, TInner, TResult>, IEqualityComparer<TKey>) Obsolete. This Join overload should never be called. This method is marked as obsolete and always throws NotSupportedException when invoked.
Public methodStatic memberJoin<TOuter, TInner, TKey, TResult>(ParallelQuery<TOuter>, ParallelQuery<TInner>, Func<TOuter, TKey>, Func<TInner, TKey>, Func<TOuter, TInner, TResult>, IEqualityComparer<TKey>)Correlates in parallel the elements of two sequences based on matching keys. A specified IEqualityComparer<T> is used to compare keys.
Public methodStatic memberLast<TSource>(ParallelQuery<TSource>)Returns the last element of a parallel sequence.
Public methodStatic memberLast<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Returns the last element of a parallel sequence that satisfies a specified condition.
Public methodStatic memberLastOrDefault<TSource>(ParallelQuery<TSource>)Returns the last element of a parallel sequence, or a default value if the sequence contains no elements.
Public methodStatic memberLastOrDefault<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Returns the last element of a parallel sequence that satisfies a condition, or a default value if no such element is found.
Public methodStatic memberLongCount<TSource>(ParallelQuery<TSource>)Returns an Int64 that represents the total number of elements in a parallel sequence.
Public methodStatic memberLongCount<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Returns an Int64 that represents how many elements in a parallel sequence satisfy a condition.
Public methodStatic memberMax(ParallelQuery<Decimal>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax(ParallelQuery<Nullable<Decimal>>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax(ParallelQuery<Double>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax(ParallelQuery<Nullable<Double>>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax(ParallelQuery<Int32>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax(ParallelQuery<Nullable<Int32>>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax(ParallelQuery<Int64>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax(ParallelQuery<Nullable<Int64>>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax(ParallelQuery<Nullable<Single>>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax(ParallelQuery<Single>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>)Returns the maximum value in a parallel sequence of values.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>, Func<TSource, Decimal>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>, Func<TSource, Double>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>, Func<TSource, Int32>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>, Func<TSource, Int64>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Decimal>>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Double>>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Int32>>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Int64>>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Single>>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMax<TSource>(ParallelQuery<TSource>, Func<TSource, Single>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMax<TSource, TResult>(ParallelQuery<TSource>, Func<TSource, TResult>)Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Public methodStatic memberMin(ParallelQuery<Decimal>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin(ParallelQuery<Nullable<Decimal>>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin(ParallelQuery<Double>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin(ParallelQuery<Nullable<Double>>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin(ParallelQuery<Int32>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin(ParallelQuery<Nullable<Int32>>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin(ParallelQuery<Int64>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin(ParallelQuery<Nullable<Int64>>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin(ParallelQuery<Nullable<Single>>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin(ParallelQuery<Single>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>)Returns the minimum value in a parallel sequence of values.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>, Func<TSource, Decimal>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>, Func<TSource, Double>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>, Func<TSource, Int32>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>, Func<TSource, Int64>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Decimal>>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Double>>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Int32>>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Int64>>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Single>>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberMin<TSource>(ParallelQuery<TSource>, Func<TSource, Single>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberMin<TSource, TResult>(ParallelQuery<TSource>, Func<TSource, TResult>)Invokes in parallel a transform function on each element of a sequence and returns the minimum value.
Public methodStatic memberOfType<TResult>Filters the elements of a ParallelQuery based on a specified type.
Public methodStatic memberOrderBy<TSource, TKey>(ParallelQuery<TSource>, Func<TSource, TKey>)Sorts in parallel the elements of a sequence in ascending order according to a key.
Public methodStatic memberOrderBy<TSource, TKey>(ParallelQuery<TSource>, Func<TSource, TKey>, IComparer<TKey>)Sorts in parallel the elements of a sequence in ascending order by using a specified comparer.
Public methodStatic memberOrderByDescending<TSource, TKey>(ParallelQuery<TSource>, Func<TSource, TKey>)Sorts in parallel the elements of a sequence in descending order according to a key.
Public methodStatic memberOrderByDescending<TSource, TKey>(ParallelQuery<TSource>, Func<TSource, TKey>, IComparer<TKey>)Sorts the elements of a sequence in descending order by using a specified comparer.
Public methodStatic memberRangeGenerates a parallel sequence of integral numbers within a specified range.
Public methodStatic memberRepeat<TResult>Generates a parallel sequence that contains one repeated value.
Public methodStatic memberReverse<TSource>Inverts the order of the elements in a parallel sequence.
Public methodStatic memberSelect<TSource, TResult>(ParallelQuery<TSource>, Func<TSource, TResult>)Projects in parallel each element of a sequence into a new form.
Public methodStatic memberSelect<TSource, TResult>(ParallelQuery<TSource>, Func<TSource, Int32, TResult>)Projects in parallel each element of a sequence into a new form by incorporating the element's index.
Public methodStatic memberSelectMany<TSource, TResult>(ParallelQuery<TSource>, Func<TSource, IEnumerable<TResult>>)Projects in parallel each element of a sequence to an IEnumerable<T> and flattens the resulting sequences into one sequence.
Public methodStatic memberSelectMany<TSource, TResult>(ParallelQuery<TSource>, Func<TSource, Int32, IEnumerable<TResult>>)Projects in parallel 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.
Public methodStatic memberSelectMany<TSource, TCollection, TResult>(ParallelQuery<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.
Public methodStatic memberSelectMany<TSource, TCollection, TResult>(ParallelQuery<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.
Public methodStatic memberSequenceEqual<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>) Obsolete. This SequenceEqual overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberSequenceEqual<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>)Determines whether two parallel sequences are equal by comparing the elements by using the default equality comparer for their type.
Public methodStatic memberSequenceEqual<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Obsolete. This SequenceEqual overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberSequenceEqual<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>, IEqualityComparer<TSource>)Determines whether two parallel sequences are equal by comparing their elements by using a specified IEqualityComparer{T}.
Public methodStatic memberSingle<TSource>(ParallelQuery<TSource>)Returns the only element of a parallel sequence, and throws an exception if there is not exactly one element in the sequence.
Public methodStatic memberSingle<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Returns the only element of a parallel sequence that satisfies a specified condition, and throws an exception if more than one such element exists.
Public methodStatic memberSingleOrDefault<TSource>(ParallelQuery<TSource>)Returns the only element of a parallel 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.
Public methodStatic memberSingleOrDefault<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Returns the only element of a parallel 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.
Public methodStatic memberSkip<TSource>Bypasses a specified number of elements in a parallel sequence and then returns the remaining elements.
Public methodStatic memberSkipWhile<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Bypasses elements in a parallel sequence as long as a specified condition is true and then returns the remaining elements.
Public methodStatic memberSkipWhile<TSource>(ParallelQuery<TSource>, Func<TSource, Int32, Boolean>)Bypasses elements in a parallel 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.
Public methodStatic memberSum(ParallelQuery<Decimal>)Computes in parallel the sum of a sequence of values.
Public methodStatic memberSum(ParallelQuery<Nullable<Decimal>>)Computes in parallel the sum of a sequence of values.
Public methodStatic memberSum(ParallelQuery<Double>)Computes in parallel the sum of a sequence of values.
Public methodStatic memberSum(ParallelQuery<Nullable<Double>>)Computes in parallel the sum of a sequence of values.
Public methodStatic memberSum(ParallelQuery<Int32>)Computes in parallel the sum of a sequence of values.
Public methodStatic memberSum(ParallelQuery<Nullable<Int32>>)Computes in parallel the sum of a sequence of values.
Public methodStatic memberSum(ParallelQuery<Int64>)Computes in parallel the sum of a sequence of values.
Public methodStatic memberSum(ParallelQuery<Nullable<Int64>>)Computes in parallel the sum of a sequence of values.
Public methodStatic memberSum(ParallelQuery<Nullable<Single>>)Computes in parallel the sum of a sequence of values.
Public methodStatic memberSum(ParallelQuery<Single>)Computes in parallel the sum of a sequence of values.
Public methodStatic memberSum<TSource>(ParallelQuery<TSource>, Func<TSource, Decimal>)Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberSum<TSource>(ParallelQuery<TSource>, Func<TSource, Double>)Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberSum<TSource>(ParallelQuery<TSource>, Func<TSource, Int32>)Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberSum<TSource>(ParallelQuery<TSource>, Func<TSource, Int64>)Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberSum<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Decimal>>)Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberSum<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Double>>)Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberSum<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Int32>>)Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberSum<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Int64>>)Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberSum<TSource>(ParallelQuery<TSource>, Func<TSource, Nullable<Single>>)Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberSum<TSource>(ParallelQuery<TSource>, Func<TSource, Single>)Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Public methodStatic memberTake<TSource>Returns a specified number of contiguous elements from the start of a parallel sequence.
Public methodStatic memberTakeWhile<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Returns elements from a parallel sequence as long as a specified condition is true.
Public methodStatic memberTakeWhile<TSource>(ParallelQuery<TSource>, Func<TSource, Int32, Boolean>)Returns elements from a parallel sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.
Public methodStatic memberThenBy<TSource, TKey>(OrderedParallelQuery<TSource>, Func<TSource, TKey>)Performs in parallel a subsequent ordering of the elements in a sequence in ascending order according to a key.
Public methodStatic memberThenBy<TSource, TKey>(OrderedParallelQuery<TSource>, Func<TSource, TKey>, IComparer<TKey>)Performs in parallel a subsequent ordering of the elements in a sequence in ascending order by using a specified comparer.
Public methodStatic memberThenByDescending<TSource, TKey>(OrderedParallelQuery<TSource>, Func<TSource, TKey>)Performs in parallel a subsequent ordering of the elements in a sequence in descending order, according to a key.
Public methodStatic memberThenByDescending<TSource, TKey>(OrderedParallelQuery<TSource>, Func<TSource, TKey>, IComparer<TKey>)Performs in parallel a subsequent ordering of the elements in a sequence in descending order by using a specified comparer.
Public methodStatic memberToArray<TSource>Creates an array from a ParallelQuery<TSource>.
Public methodStatic memberToDictionary<TSource, TKey>(ParallelQuery<TSource>, Func<TSource, TKey>)Creates a Dictionary<TKey, TValue> from a ParallelQuery<TSource> according to a specified key selector function.
Public methodStatic memberToDictionary<TSource, TKey>(ParallelQuery<TSource>, Func<TSource, TKey>, IEqualityComparer<TKey>)Creates a Dictionary<TKey, TValue> from a ParallelQuery<TSource> according to a specified key selector function and key comparer.
Public methodStatic memberToDictionary<TSource, TKey, TElement>(ParallelQuery<TSource>, Func<TSource, TKey>, Func<TSource, TElement>)Creates a Dictionary<TKey, TValue> from a ParallelQuery<TSource> according to specified key selector and element selector functions.
Public methodStatic memberToDictionary<TSource, TKey, TElement>(ParallelQuery<TSource>, Func<TSource, TKey>, Func<TSource, TElement>, IEqualityComparer<TKey>)Creates a Dictionary<TKey, TValue> from a ParallelQuery<TSource> according to a specified key selector function, a comparer, and an element selector function.
Public methodStatic memberToList<TSource>Creates a List<T> from an ParallelQuery<TSource>.
Public methodStatic memberToLookup<TSource, TKey>(ParallelQuery<TSource>, Func<TSource, TKey>)Creates an ILookup<TKey, TElement> from a ParallelQuery<TSource> according to a specified key selector function.
Public methodStatic memberToLookup<TSource, TKey>(ParallelQuery<TSource>, Func<TSource, TKey>, IEqualityComparer<TKey>)Creates an ILookup<TKey, TElement> from a ParallelQuery<TSource> according to a specified key selector function and key comparer.
Public methodStatic memberToLookup<TSource, TKey, TElement>(ParallelQuery<TSource>, Func<TSource, TKey>, Func<TSource, TElement>)Creates an ILookup<TKey, TElement> from a ParallelQuery<TSource> according to specified key selector and element selector functions.
Public methodStatic memberToLookup<TSource, TKey, TElement>(ParallelQuery<TSource>, Func<TSource, TKey>, Func<TSource, TElement>, IEqualityComparer<TKey>)Creates an ILookup<TKey, TElement> from a ParallelQuery<TSource> according to a specified key selector function, a comparer and an element selector function.
Public methodStatic memberUnion<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>) Obsolete. This Union overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberUnion<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>)Produces the set union of two parallel sequences by using the default equality comparer.
Public methodStatic memberUnion<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Obsolete. This Union overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.
Public methodStatic memberUnion<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>, IEqualityComparer<TSource>)Produces the set union of two parallel sequences by using a specified IEqualityComparer{T}.
Public methodStatic memberWhere<TSource>(ParallelQuery<TSource>, Func<TSource, Boolean>)Filters in parallel a sequence of values based on a predicate.
Public methodStatic memberWhere<TSource>(ParallelQuery<TSource>, Func<TSource, Int32, Boolean>)Filters in parallel a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.
Public methodStatic memberWithCancellation<TSource>Sets the CancellationToken to associate with the query.
Public methodStatic memberWithDegreeOfParallelism<TSource>Sets the degree of parallelism to use in a query. Degree of parallelism is the maximum number of concurrently executing tasks that will be used to process the query.
Public methodStatic memberWithExecutionMode<TSource>Sets the execution mode of the query.
Public methodStatic memberWithMergeOptions<TSource>Sets the merge options for this query, which specify how the query will buffer output.
Public methodStatic memberZip<TFirst, TSecond, TResult>(ParallelQuery<TFirst>, IEnumerable<TSecond>, Func<TFirst, TSecond, TResult>) Obsolete. This Zip overload should never be called. This method is marked as obsolete and always throws NotSupportedException when invoked.
Public methodStatic memberZip<TFirst, TSecond, TResult>(ParallelQuery<TFirst>, ParallelQuery<TSecond>, Func<TFirst, TSecond, TResult>)Merges in parallel two sequences by using the specified predicate function.
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.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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