# ParallelEnumerable Class

**.NET Framework 4.5**

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

**Namespace:**System.Linq

**Assemblies:**System.Linq.Parallel (in System.Linq.Parallel.dll)

System.Core (in System.Core.dll)

The ParallelEnumerable type exposes the following members.

Name | Description | |
---|---|---|

Aggregate(TSource)(ParallelQuery(TSource), Func(TSource, TSource, TSource)) | Applies in parallel an accumulator function over a sequence. | |

Aggregate(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. | |

Aggregate(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. | |

Aggregate(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. | |

Aggregate(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. | |

All(TSource) | Determines in parallel whether all elements of a sequence satisfy a condition. | |

Any(TSource)(ParallelQuery(TSource)) | Determines whether a parallel sequence contains any elements. | |

Any(TSource)(ParallelQuery(TSource), Func(TSource, Boolean)) | Determines in parallel whether any element of a sequence satisfies a condition. | |

AsEnumerable(TSource) | Converts a ParallelQuery(TSource) into an IEnumerable(T) to force sequential evaluation of the query. | |

AsOrdered(ParallelQuery) | Enables treatment of a data source as if it were ordered, overriding the default of unordered. AsOrdered may only be invoked on non-generic sequences returned by AsParallel, ParallelEnumerable.Range, and ParallelEnumerable.Repeat. | |

AsOrdered(TSource)(ParallelQuery(TSource)) | Enables treatment of a data source as if it were ordered, overriding the default of unordered. AsOrdered may only be invoked on generic sequences returned by AsParallel, ParallelEnumerable.Range, and ParallelEnumerable.Repeat. | |

AsParallel(IEnumerable) | Enables parallelization of a query. | |

AsParallel(TSource)(IEnumerable(TSource)) | Enables parallelization of a query. | |

AsParallel(TSource)(Partitioner(TSource)) | Enables parallelization of a query, as sourced by a custom partitioner that is responsible for splitting the input sequence into partitions. | |

AsSequential(TSource) | Converts a ParallelQuery(TSource) into an IEnumerable(T) to force sequential evaluation of the query. | |

AsUnordered(TSource) | Allows an intermediate query to be treated as if no ordering is implied among the elements. | |

Average(ParallelQuery(Decimal)) | Computes in parallel the average of a sequence of values. | |

Average(ParallelQuery(Nullable(Decimal))) | Computes in parallel the average of a sequence of values. | |

Average(ParallelQuery(Double)) | Computes in parallel the average of a sequence of values. | |

Average(ParallelQuery(Nullable(Double))) | Computes in parallel the average of a sequence of values. | |

Average(ParallelQuery(Int32)) | Computes in parallel the average of a sequence of values. | |

Average(ParallelQuery(Nullable(Int32))) | Computes in parallel the average of a sequence of values. | |

Average(ParallelQuery(Int64)) | Computes in parallel the average of a sequence of values. | |

Average(ParallelQuery(Nullable(Int64))) | Computes in parallel the average of a sequence of values. | |

Average(ParallelQuery(Nullable(Single))) | Computes in parallel the average of a sequence of values. | |

Average(ParallelQuery(Single)) | Computes in parallel the average of a sequence of values. | |

Average(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. | |

Average(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. | |

Average(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. | |

Average(TSource)(ParallelQuery(TSource), Func(TSource, Int64)) | ||

Average(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Decimal))) | ||

Average(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Double))) | ||

Average(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Int32))) | ||

Average(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Int64))) | ||

Average(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Single))) | ||

Average(TSource)(ParallelQuery(TSource), Func(TSource, Single)) | ||

Cast(TResult) | Converts the elements of a ParallelQuery to the specified type. | |

Concat(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. | |

Concat(TSource)(ParallelQuery(TSource), ParallelQuery(TSource)) | Concatenates two parallel sequences. | |

Contains(TSource)(ParallelQuery(TSource), TSource) | Determines in parallel whether a sequence contains a specified element by using the default equality comparer. | |

Contains(TSource)(ParallelQuery(TSource), TSource, IEqualityComparer(TSource)) | Determines in parallel whether a sequence contains a specified element by using a specified IEqualityComparer(T). | |

Count(TSource)(ParallelQuery(TSource)) | Returns the number of elements in a parallel sequence. | |

Count(TSource)(ParallelQuery(TSource), Func(TSource, Boolean)) | Returns a number that represents how many elements in the specified parallel sequence satisfy a condition. | |

DefaultIfEmpty(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. | |

DefaultIfEmpty(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. | |

Distinct(TSource)(ParallelQuery(TSource)) | Returns distinct elements from a parallel sequence by using the default equality comparer to compare values. | |

Distinct(TSource)(ParallelQuery(TSource), IEqualityComparer(TSource)) | Returns distinct elements from a parallel sequence by using a specified IEqualityComparer(T) to compare values. | |

ElementAt(TSource) | Returns the element at a specified index in a parallel sequence. | |

ElementAtOrDefault(TSource) | Returns the element at a specified index in a parallel sequence or a default value if the index is out of range. | |

Empty(TResult) | Returns an empty ParallelQuery{TResult} that has the specified type argument. | |

Except(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. | |

Except(TSource)(ParallelQuery(TSource), ParallelQuery(TSource)) | Produces the set difference of two parallel sequences by using the default equality comparer to compare values. | |

Except(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. | |

Except(TSource)(ParallelQuery(TSource), ParallelQuery(TSource), IEqualityComparer(TSource)) | Produces the set difference of two parallel sequences by using the specified IEqualityComparer(T) to compare values. | |

First(TSource)(ParallelQuery(TSource)) | Returns the first element of a parallel sequence. | |

First(TSource)(ParallelQuery(TSource), Func(TSource, Boolean)) | Returns the first element in a parallel sequence that satisfies a specified condition. | |

FirstOrDefault(TSource)(ParallelQuery(TSource)) | Returns the first element of a parallel sequence, or a default value if the sequence contains no elements. | |

FirstOrDefault(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. | |

ForAll(TSource) | Invokes in parallel the specified action for each element in the source. | |

GroupBy(TSource, TKey)(ParallelQuery(TSource), Func(TSource, TKey)) | Groups in parallel the elements of a sequence according to a specified key selector function. | |

GroupBy(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). | |

GroupBy(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. | |

GroupBy(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. | |

GroupBy(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. | |

GroupBy(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. | |

GroupBy(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. | |

GroupBy(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. | |

GroupJoin(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. | |

GroupJoin(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. | |

GroupJoin(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. | |

GroupJoin(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. | |

Intersect(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. | |

Intersect(TSource)(ParallelQuery(TSource), ParallelQuery(TSource)) | Produces the set intersection of two parallel sequences by using the default equality comparer to compare values. | |

Intersect(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. | |

Intersect(TSource)(ParallelQuery(TSource), ParallelQuery(TSource), IEqualityComparer(TSource)) | Produces the set intersection of two parallel sequences by using the specified IEqualityComparer{T} to compare values. | |

Join(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. | |

Join(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. | |

Join(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. | |

Join(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. | |

Last(TSource)(ParallelQuery(TSource)) | Returns the last element of a parallel sequence. | |

Last(TSource)(ParallelQuery(TSource), Func(TSource, Boolean)) | Returns the last element of a parallel sequence that satisfies a specified condition. | |

LastOrDefault(TSource)(ParallelQuery(TSource)) | Returns the last element of a parallel sequence, or a default value if the sequence contains no elements. | |

LastOrDefault(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. | |

LongCount(TSource)(ParallelQuery(TSource)) | Returns an Int64 that represents the total number of elements in a parallel sequence. | |

LongCount(TSource)(ParallelQuery(TSource), Func(TSource, Boolean)) | Returns an Int64 that represents how many elements in a parallel sequence satisfy a condition. | |

Max(ParallelQuery(Decimal)) | Returns the maximum value in a parallel sequence of values. | |

Max(ParallelQuery(Nullable(Decimal))) | Returns the maximum value in a parallel sequence of values. | |

Max(ParallelQuery(Double)) | Returns the maximum value in a parallel sequence of values. | |

Max(ParallelQuery(Nullable(Double))) | Returns the maximum value in a parallel sequence of values. | |

Max(ParallelQuery(Int32)) | Returns the maximum value in a parallel sequence of values. | |

Max(ParallelQuery(Nullable(Int32))) | Returns the maximum value in a parallel sequence of values. | |

Max(ParallelQuery(Int64)) | Returns the maximum value in a parallel sequence of values. | |

Max(ParallelQuery(Nullable(Int64))) | Returns the maximum value in a parallel sequence of values. | |

Max(ParallelQuery(Nullable(Single))) | Returns the maximum value in a parallel sequence of values. | |

Max(ParallelQuery(Single)) | Returns the maximum value in a parallel sequence of values. | |

Max(TSource)(ParallelQuery(TSource)) | Returns the maximum value in a parallel sequence of values. | |

Max(TSource)(ParallelQuery(TSource), Func(TSource, Decimal)) | Invokes in parallel a transform function on each element of a sequence and returns the maximum value. | |

Max(TSource)(ParallelQuery(TSource), Func(TSource, Double)) | Invokes in parallel a transform function on each element of a sequence and returns the maximum value. | |

Max(TSource)(ParallelQuery(TSource), Func(TSource, Int32)) | Invokes in parallel a transform function on each element of a sequence and returns the maximum value. | |

Max(TSource)(ParallelQuery(TSource), Func(TSource, Int64)) | ||

Max(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Decimal))) | ||

Max(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Double))) | ||

Max(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Int32))) | ||

Max(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Int64))) | ||

Max(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Single))) | ||

Max(TSource)(ParallelQuery(TSource), Func(TSource, Single)) | ||

Max(TSource, TResult)(ParallelQuery(TSource), Func(TSource, TResult)) | ||

Min(ParallelQuery(Decimal)) | Returns the minimum value in a parallel sequence of values. | |

Min(ParallelQuery(Nullable(Decimal))) | Returns the minimum value in a parallel sequence of values. | |

Min(ParallelQuery(Double)) | Returns the minimum value in a parallel sequence of values. | |

Min(ParallelQuery(Nullable(Double))) | Returns the minimum value in a parallel sequence of values. | |

Min(ParallelQuery(Int32)) | Returns the minimum value in a parallel sequence of values. | |

Min(ParallelQuery(Nullable(Int32))) | Returns the minimum value in a parallel sequence of values. | |

Min(ParallelQuery(Int64)) | Returns the minimum value in a parallel sequence of values. | |

Min(ParallelQuery(Nullable(Int64))) | Returns the minimum value in a parallel sequence of values. | |

Min(ParallelQuery(Nullable(Single))) | Returns the minimum value in a parallel sequence of values. | |

Min(ParallelQuery(Single)) | Returns the minimum value in a parallel sequence of values. | |

Min(TSource)(ParallelQuery(TSource)) | Returns the minimum value in a parallel sequence of values. | |

Min(TSource)(ParallelQuery(TSource), Func(TSource, Decimal)) | Invokes in parallel a transform function on each element of a sequence and returns the minimum value. | |

Min(TSource)(ParallelQuery(TSource), Func(TSource, Double)) | Invokes in parallel a transform function on each element of a sequence and returns the minimum value. | |

Min(TSource)(ParallelQuery(TSource), Func(TSource, Int32)) | Invokes in parallel a transform function on each element of a sequence and returns the minimum value. | |

Min(TSource)(ParallelQuery(TSource), Func(TSource, Int64)) | ||

Min(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Decimal))) | ||

Min(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Double))) | ||

Min(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Int32))) | ||

Min(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Int64))) | ||

Min(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Single))) | ||

Min(TSource)(ParallelQuery(TSource), Func(TSource, Single)) | ||

Min(TSource, TResult)(ParallelQuery(TSource), Func(TSource, TResult)) | ||

OfType(TResult) | Filters the elements of a ParallelQuery based on a specified type. | |

OrderBy(TSource, TKey)(ParallelQuery(TSource), Func(TSource, TKey)) | Sorts in parallel the elements of a sequence in ascending order according to a key. | |

OrderBy(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. | |

OrderByDescending(TSource, TKey)(ParallelQuery(TSource), Func(TSource, TKey)) | Sorts in parallel the elements of a sequence in descending order according to a key. | |

OrderByDescending(TSource, TKey)(ParallelQuery(TSource), Func(TSource, TKey), IComparer(TKey)) | Sorts the elements of a sequence in descending order by using a specified comparer. | |

Range | Generates a parallel sequence of integral numbers within a specified range. | |

Repeat(TResult) | Generates a parallel sequence that contains one repeated value. | |

Reverse(TSource) | Inverts the order of the elements in a parallel sequence. | |

Select(TSource, TResult)(ParallelQuery(TSource), Func(TSource, TResult)) | Projects in parallel each element of a sequence into a new form. | |

Select(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. | |

SelectMany(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. | |

SelectMany(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. | |

SelectMany(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. | |

SelectMany(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. | |

SequenceEqual(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. | |

SequenceEqual(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. | |

SequenceEqual(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. | |

SequenceEqual(TSource)(ParallelQuery(TSource), ParallelQuery(TSource), IEqualityComparer(TSource)) | Determines whether two parallel sequences are equal by comparing their elements by using a specified IEqualityComparer{T}. | |

Single(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. | |

Single(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. | |

SingleOrDefault(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. | |

SingleOrDefault(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. | |

Skip(TSource) | Bypasses a specified number of elements in a parallel sequence and then returns the remaining elements. | |

SkipWhile(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. | |

SkipWhile(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. | |

Sum(ParallelQuery(Decimal)) | Computes in parallel the sum of a sequence of values. | |

Sum(ParallelQuery(Nullable(Decimal))) | Computes in parallel the sum of a sequence of values. | |

Sum(ParallelQuery(Double)) | Computes in parallel the sum of a sequence of values. | |

Sum(ParallelQuery(Nullable(Double))) | Computes in parallel the sum of a sequence of values. | |

Sum(ParallelQuery(Int32)) | Computes in parallel the sum of a sequence of values. | |

Sum(ParallelQuery(Nullable(Int32))) | Computes in parallel the sum of a sequence of values. | |

Sum(ParallelQuery(Int64)) | Computes in parallel the sum of a sequence of values. | |

Sum(ParallelQuery(Nullable(Int64))) | Computes in parallel the sum of a sequence of values. | |

Sum(ParallelQuery(Nullable(Single))) | Computes in parallel the sum of a sequence of values. | |

Sum(ParallelQuery(Single)) | Computes in parallel the sum of a sequence of values. | |

Sum(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. | |

Sum(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. | |

Sum(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. | |

Sum(TSource)(ParallelQuery(TSource), Func(TSource, Int64)) | ||

Sum(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Decimal))) | ||

Sum(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Double))) | ||

Sum(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Int32))) | ||

Sum(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Int64))) | ||

Sum(TSource)(ParallelQuery(TSource), Func(TSource, Nullable(Single))) | ||

Sum(TSource)(ParallelQuery(TSource), Func(TSource, Single)) | ||

Take(TSource) | Returns a specified number of contiguous elements from the start of a parallel sequence. | |

TakeWhile(TSource)(ParallelQuery(TSource), Func(TSource, Boolean)) | Returns elements from a parallel sequence as long as a specified condition is true. | |

TakeWhile(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. | |

ThenBy(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. | |

ThenBy(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. | |

ThenByDescending(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. | |

ThenByDescending(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. | |

ToArray(TSource) | Creates an array from a ParallelQuery(TSource). | |

ToDictionary(TSource, TKey)(ParallelQuery(TSource), Func(TSource, TKey)) | Creates a Dictionary(TKey, TValue) from a ParallelQuery(TSource) according to a specified key selector function. | |

ToDictionary(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. | |

ToDictionary(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. | |

ToDictionary(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. | |

ToList(TSource) | Creates a List(T) from an ParallelQuery(TSource). | |

ToLookup(TSource, TKey)(ParallelQuery(TSource), Func(TSource, TKey)) | Creates an ILookup(TKey, TElement) from a ParallelQuery(TSource) according to a specified key selector function. | |

ToLookup(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. | |

ToLookup(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. | |

ToLookup(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. | |

Union(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. | |

Union(TSource)(ParallelQuery(TSource), ParallelQuery(TSource)) | Produces the set union of two parallel sequences by using the default equality comparer. | |

Union(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. | |

Union(TSource)(ParallelQuery(TSource), ParallelQuery(TSource), IEqualityComparer(TSource)) | Produces the set union of two parallel sequences by using a specified IEqualityComparer{T}. | |

Where(TSource)(ParallelQuery(TSource), Func(TSource, Boolean)) | Filters in parallel a sequence of values based on a predicate. | |

Where(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. | |

WithCancellation(TSource) | Sets the CancellationToken to associate with the query. | |

WithDegreeOfParallelism(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. | |

WithExecutionMode(TSource) | Sets the execution mode of the query. | |

WithMergeOptions(TSource) | Sets the merge options for this query, which specify how the query will buffer output. | |

Zip(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. | |

Zip(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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