Table<TEntity> Class

Definition

Namespace:

System.Data.Linq

Assembly:

System.Data.Linq.dll

Represents a table for a particular type in the underlying database.

generic <typename TEntity>
 where TEntity : classpublic ref class Table sealed : System::Collections::Generic::IEnumerable<TEntity>, System::ComponentModel::IListSource, System::Data::Linq::ITable, System::Data::Linq::ITable<TEntity>, System::Linq::IQueryable<TEntity>, System::Linq::IQueryProvider

public sealed class Table<TEntity> : System.Collections.Generic.IEnumerable<TEntity>, System.ComponentModel.IListSource, System.Data.Linq.ITable, System.Data.Linq.ITable<TEntity>, System.Linq.IQueryable<TEntity>, System.Linq.IQueryProvider where TEntity : class

type Table<'Entity (requires 'Entity : null)> = class
    interface IQueryable<'Entity (requires 'Entity : null)>
    interface seq<'Entity (requires 'Entity : null)>
    interface IEnumerable
    interface IQueryable
    interface IQueryProvider
    interface ITable
    interface IListSource
    interface ITable<'Entity (requires 'Entity : null)>

Public NotInheritable Class Table(Of TEntity)
Implements IEnumerable(Of TEntity), IListSource, IQueryable(Of TEntity), IQueryProvider, ITable, ITable(Of TEntity)

Type Parameters

TEntity

The type of the data in the table.

Inheritance

Object

Table<TEntity>

Implements

IEnumerable<T> IEnumerable<TEntity> IEnumerable IListSource ITable IQueryable IQueryable<TEntity> IQueryProvider ITable<TEntity>

Remarks

This class enables you to query over the table and add, remove, and attach objects.

An application can access a Table<TEntity> instance via GetTable or by using a strongly typed property for the strongly typed DataContext. That is, when the designer generates a DataContext object, it generates properties to represent each Table. For example:

[global::System.Data.Linq.Mapping.DatabaseAttribute(Name="SignOffTool")]  
public partial class DataClasses1DataContext : System.Data.Linq.DataContext 
{
    public System.Data.Linq.Table<User> Users
    {
        get
        {
            return this.GetTable<User>();
        }
    }
}

For this strongly typed DataContext, you can access the Users property to get Table<User>.

Properties

Context	Gets the DataContext that has been used to retrieve this Table<TEntity>.
IsReadOnly	Gets a value that indicates whether the type of the entities contained in this Table<TEntity> instance has a primary key.

Methods

Attach(TEntity, Boolean)	Attaches an entity to the DataContext in either a modified or unmodified state.
Attach(TEntity, TEntity)	Attaches an entity to the DataContext in either a modified or unmodified state by specifying both the entity and its original state.
Attach(TEntity)	Attaches a disconnected or "detached" entity to a new DataContext when original values are required for optimistic concurrency checks.
AttachAll<TSubEntity>(IEnumerable<TSubEntity>, Boolean)	Attaches all entities of a collection to the DataContext in either a modified or unmodified state.
AttachAll<TSubEntity>(IEnumerable<TSubEntity>)	Attaches all entities of a collection to the DataContext in either a modified or unmodified state.
DeleteAllOnSubmit<TSubEntity>(IEnumerable<TSubEntity>)	Puts all entities from the collection into a pending delete state.
DeleteOnSubmit(TEntity)	Puts an entity from this table into a pending delete state.
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetEnumerator()	Gets an enumerator that iterates through the collection.
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetModifiedMembers(TEntity)	Returns an array of modified members that contain their current and original values.
GetNewBindingList()	Creates a new list for binding to a data source.
GetOriginalEntityState(TEntity)	Returns a Table<TEntity> instance that contains the original state of the entity.
GetType()	Gets the Type of the current instance. (Inherited from Object)
InsertAllOnSubmit<TSubEntity>(IEnumerable<TSubEntity>)	Adds all entities of a collection to the DataContext in a pending insert state.
InsertOnSubmit(TEntity)	Adds an entity in a pending insert state to this Table<TEntity>.
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the table.

Explicit Interface Implementations

IEnumerable.GetEnumerator()	Returns an enumerator that iterates through the collection.
IEnumerable<TEntity>.GetEnumerator()	Returns an enumerator that iterates through the collection.
IListSource.ContainsListCollection	Gets a value that indicates whether the collection is a collection of IList objects.
IListSource.GetList()	Returns an IList that can be bound to a data source from an object that does not implement an IList itself.
IQueryable.ElementType	Gets the type of the element(s) that are returned when the expression tree associated with this object is executed.
IQueryable.Expression	Gets the expression tree that is associated with this instance of IQueryable.
IQueryable.Provider	Gets the query provider that is associated with this data source.
IQueryProvider.CreateQuery(Expression)	Constructs an IQueryable object that can evaluate the query represented by a specified expression tree.
IQueryProvider.CreateQuery<TResult>(Expression)	Constructs an IQueryable<T> object that can evaluate the query represented by a specified expression tree.
IQueryProvider.Execute(Expression)	Executes the query represented by a specified expression tree.
IQueryProvider.Execute<TResult>(Expression)	Executes the strongly-typed query represented by a specified expression tree.
ITable.Attach(Object, Boolean)	Attaches all entities of a collection to the DataContext in either a modified or unmodified state.
ITable.Attach(Object, Object)	Attaches an entity to the DataContext in either a modified or unmodified state by specifying both the entity and its original state.
ITable.Attach(Object)	Attaches an entity to the DataContext in an unmodified state.
ITable.AttachAll(IEnumerable, Boolean)	Attaches all entities of a collection to the DataContext in either a modified or unmodified state.
ITable.AttachAll(IEnumerable)	Attaches all entities of a collection to the DataContext in either a modified or unmodified state.
ITable.DeleteAllOnSubmit(IEnumerable)	Puts all entities from the collection into a pending delete state.
ITable.DeleteOnSubmit(Object)	Puts an entity from this table into a pending delete state.
ITable.GetModifiedMembers(Object)	Returns an array of modified members that contain their current and original values.
ITable.GetOriginalEntityState(Object)	Retrieves original values of a given entity.
ITable.InsertAllOnSubmit(IEnumerable)	Adds all entities of a collection to the DataContext in an pending insert state.
ITable.InsertOnSubmit(Object)	Adds an entity in a pending insert state to this table.

Extension Methods

CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler)	Copies DataRow objects to the specified DataTable, given an input IEnumerable<T> object where the generic parameter T is DataRow.
CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption)	Copies DataRow objects to the specified DataTable, given an input IEnumerable<T> object where the generic parameter T is DataRow.
CopyToDataTable<T>(IEnumerable<T>)	Returns a DataTable that contains copies of the DataRow objects, given an input IEnumerable<T> object where the generic parameter T is DataRow.
Aggregate<TSource>(IEnumerable<TSource>, Func<TSource,TSource,TSource>)	Applies an accumulator function over a sequence.
Aggregate<TSource,TAccumulate>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>)	Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.
Aggregate<TSource,TAccumulate,TResult>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>, Func<TAccumulate,TResult>)	Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.
All<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Determines whether all elements of a sequence satisfy a condition.
Any<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Determines whether any element of a sequence satisfies a condition.
Any<TSource>(IEnumerable<TSource>)	Determines whether a sequence contains any elements.
Append<TSource>(IEnumerable<TSource>, TSource)	Appends a value to the end of the sequence.
AsEnumerable<TSource>(IEnumerable<TSource>)	Returns the input typed as IEnumerable<T>.
Average<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)	Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.
Average<TSource>(IEnumerable<TSource>, Func<TSource,Double>)	Computes the average of a sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.
Average<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)	Computes the average of a sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.
Average<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)	Computes the average of a sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.
Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)	Computes the average of a sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.
Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)	Computes the average of a sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.
Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)	Computes the average of a sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.
Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)	Computes the average of a sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.
Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)	Computes the average of a sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.
Average<TSource>(IEnumerable<TSource>, Func<TSource,Single>)	Computes the average of a sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.
Cast<TResult>(IEnumerable)	Casts the elements of an IEnumerable to the specified type.
Concat<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)	Concatenates two sequences.
Contains<TSource>(IEnumerable<TSource>, TSource, IEqualityComparer<TSource>)	Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>.
Contains<TSource>(IEnumerable<TSource>, TSource)	Determines whether a sequence contains a specified element by using the default equality comparer.
Count<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns a number that represents how many elements in the specified sequence satisfy a condition.
Count<TSource>(IEnumerable<TSource>)	Returns the number of elements in a sequence.
DefaultIfEmpty<TSource>(IEnumerable<TSource>, TSource)	Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.
DefaultIfEmpty<TSource>(IEnumerable<TSource>)	Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.
Distinct<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)	Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values.
Distinct<TSource>(IEnumerable<TSource>)	Returns distinct elements from a sequence by using the default equality comparer to compare values.
ElementAt<TSource>(IEnumerable<TSource>, Int32)	Returns the element at a specified index in a sequence.
ElementAtOrDefault<TSource>(IEnumerable<TSource>, Int32)	Returns the element at a specified index in a sequence or a default value if the index is out of range.
Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Produces the set difference of two sequences by using the specified IEqualityComparer<T> to compare values.
Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)	Produces the set difference of two sequences by using the default equality comparer to compare values.
First<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns the first element in a sequence that satisfies a specified condition.
First<TSource>(IEnumerable<TSource>)	Returns the first element of a sequence.
FirstOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns the first element of the sequence that satisfies a condition or a default value if no such element is found.
FirstOrDefault<TSource>(IEnumerable<TSource>)	Returns the first element of a sequence, or a default value if the sequence contains no elements.
GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)	Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.
GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)	Groups the elements of a sequence according to a specified key selector function.
GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)	Groups the elements of a sequence according to a key selector function. The keys are compared by using a comparer and each group's elements are projected by using a specified function.
GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)	Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.
GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>, IEqualityComparer<TKey>)	Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The keys are compared by using a specified comparer.
GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>)	Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>, TResult>, IEqualityComparer<TKey>)	Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.
GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>)	Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.
GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>, TResult>, IEqualityComparer<TKey>)	Correlates the elements of two sequences based on key equality and groups the results. A specified IEqualityComparer<T> is used to compare keys.
GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>, TResult>)	Correlates the elements of two sequences based on equality of keys and groups the results. The default equality comparer is used to compare keys.
Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Produces the set intersection of two sequences by using the specified IEqualityComparer<T> to compare values.
Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)	Produces the set intersection of two sequences by using the default equality comparer to compare values.
Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>, IEqualityComparer<TKey>)	Correlates the elements of two sequences based on matching keys. A specified IEqualityComparer<T> is used to compare keys.
Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>)	Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.
Last<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns the last element of a sequence that satisfies a specified condition.
Last<TSource>(IEnumerable<TSource>)	Returns the last element of a sequence.
LastOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.
LastOrDefault<TSource>(IEnumerable<TSource>)	Returns the last element of a sequence, or a default value if the sequence contains no elements.
LongCount<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns an Int64 that represents how many elements in a sequence satisfy a condition.
LongCount<TSource>(IEnumerable<TSource>)	Returns an Int64 that represents the total number of elements in a sequence.
Max<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)	Invokes a transform function on each element of a sequence and returns the maximum Decimal value.
Max<TSource>(IEnumerable<TSource>, Func<TSource,Double>)	Invokes a transform function on each element of a sequence and returns the maximum Double value.
Max<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)	Invokes a transform function on each element of a sequence and returns the maximum Int32 value.
Max<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)	Invokes a transform function on each element of a sequence and returns the maximum Int64 value.
Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)	Invokes a transform function on each element of a sequence and returns the maximum nullable Decimal value.
Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)	Invokes a transform function on each element of a sequence and returns the maximum nullable Double value.
Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)	Invokes a transform function on each element of a sequence and returns the maximum nullable Int32 value.
Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)	Invokes a transform function on each element of a sequence and returns the maximum nullable Int64 value.
Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)	Invokes a transform function on each element of a sequence and returns the maximum nullable Single value.
Max<TSource>(IEnumerable<TSource>, Func<TSource,Single>)	Invokes a transform function on each element of a sequence and returns the maximum Single value.
Max<TSource>(IEnumerable<TSource>)	Returns the maximum value in a generic sequence.
Max<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)	Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.
Min<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)	Invokes a transform function on each element of a sequence and returns the minimum Decimal value.
Min<TSource>(IEnumerable<TSource>, Func<TSource,Double>)	Invokes a transform function on each element of a sequence and returns the minimum Double value.
Min<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)	Invokes a transform function on each element of a sequence and returns the minimum Int32 value.
Min<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)	Invokes a transform function on each element of a sequence and returns the minimum Int64 value.
Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)	Invokes a transform function on each element of a sequence and returns the minimum nullable Decimal value.
Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)	Invokes a transform function on each element of a sequence and returns the minimum nullable Double value.
Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)	Invokes a transform function on each element of a sequence and returns the minimum nullable Int32 value.
Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)	Invokes a transform function on each element of a sequence and returns the minimum nullable Int64 value.
Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)	Invokes a transform function on each element of a sequence and returns the minimum nullable Single value.
Min<TSource>(IEnumerable<TSource>, Func<TSource,Single>)	Invokes a transform function on each element of a sequence and returns the minimum Single value.
Min<TSource>(IEnumerable<TSource>)	Returns the minimum value in a generic sequence.
Min<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)	Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.
OfType<TResult>(IEnumerable)	Filters the elements of an IEnumerable based on a specified type.
OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)	Sorts the elements of a sequence in ascending order by using a specified comparer.
OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)	Sorts the elements of a sequence in ascending order according to a key.
OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)	Sorts the elements of a sequence in descending order by using a specified comparer.
OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)	Sorts the elements of a sequence in descending order according to a key.
Prepend<TSource>(IEnumerable<TSource>, TSource)	Adds a value to the beginning of the sequence.
Reverse<TSource>(IEnumerable<TSource>)	Inverts the order of the elements in a sequence.
Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)	Projects each element of a sequence into a new form.
Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,TResult>)	Projects each element of a sequence into a new form by incorporating the element's index.
SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TResult>>)	Projects each element of a sequence to an IEnumerable<T> and flattens the resulting sequences into one sequence.
SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TResult>>)	Projects each element of a sequence to an IEnumerable<T>, and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.
SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>)	Projects each element of a sequence to an IEnumerable<T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.
SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>)	Projects each element of a sequence to an IEnumerable<T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. The index of each source element is used in the intermediate projected form of that element.
SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer<T>.
SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)	Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.
Single<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.
Single<TSource>(IEnumerable<TSource>)	Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.
SingleOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.
SingleOrDefault<TSource>(IEnumerable<TSource>)	Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.
Skip<TSource>(IEnumerable<TSource>, Int32)	Bypasses a specified number of elements in a sequence and then returns the remaining elements.
SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.
SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)	Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.
Sum<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)	Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(IEnumerable<TSource>, Func<TSource,Double>)	Computes the sum of the sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)	Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)	Computes the sum of the sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)	Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)	Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)	Computes the sum of the sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)	Computes the sum of the sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)	Computes the sum of the sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(IEnumerable<TSource>, Func<TSource,Single>)	Computes the sum of the sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.
Take<TSource>(IEnumerable<TSource>, Int32)	Returns a specified number of contiguous elements from the start of a sequence.
TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns elements from a sequence as long as a specified condition is true.
TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)	Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.
ToArray<TSource>(IEnumerable<TSource>)	Creates an array from a IEnumerable<T>.
ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)	Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to a specified key selector function and key comparer.
ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)	Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to a specified key selector function.
ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)	Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to a specified key selector function, a comparer, and an element selector function.
ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)	Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to specified key selector and element selector functions.
ToHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)	Creates a HashSet<T> from an IEnumerable<T> using the comparer to compare keys.
ToHashSet<TSource>(IEnumerable<TSource>)	Creates a HashSet<T> from an IEnumerable<T>.
ToList<TSource>(IEnumerable<TSource>)	Creates a List<T> from an IEnumerable<T>.
ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)	Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to a specified key selector function and key comparer.
ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)	Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to a specified key selector function.
ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)	Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to a specified key selector function, a comparer and an element selector function.
ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)	Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to specified key selector and element selector functions.
Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Produces the set union of two sequences by using a specified IEqualityComparer<T>.
Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)	Produces the set union of two sequences by using the default equality comparer.
Where<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Filters a sequence of values based on a predicate.
Where<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)	Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.
Zip<TFirst,TSecond,TResult>(IEnumerable<TFirst>, IEnumerable<TSecond>, Func<TFirst,TSecond,TResult>)	Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.
AsParallel(IEnumerable)	Enables parallelization of a query.
AsParallel<TSource>(IEnumerable<TSource>)	Enables parallelization of a query.
Aggregate<TSource>(IQueryable<TSource>, Expression<Func<TSource,TSource,TSource>>)	Applies an accumulator function over a sequence.
Aggregate<TSource,TAccumulate>(IQueryable<TSource>, TAccumulate, Expression<Func<TAccumulate,TSource,TAccumulate>>)	Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.
Aggregate<TSource,TAccumulate,TResult>(IQueryable<TSource>, TAccumulate, Expression<Func<TAccumulate,TSource,TAccumulate>>, Expression<Func<TAccumulate, TResult>>)	Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.
All<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Determines whether all the elements of a sequence satisfy a condition.
Any<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Determines whether any element of a sequence satisfies a condition.
Any<TSource>(IQueryable<TSource>)	Determines whether a sequence contains any elements.
AsQueryable(IEnumerable)	Converts an IEnumerable to an IQueryable.
AsQueryable<TElement>(IEnumerable<TElement>)	Converts a generic IEnumerable<T> to a generic IQueryable<T>.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Decimal>>)	Computes the average of a sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Double>>)	Computes the average of a sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32>>)	Computes the average of a sequence of Int32 values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int64>>)	Computes the average of a sequence of Int64 values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Decimal>>>)	Computes the average of a sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Double>>>)	Computes the average of a sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int32>>>)	Computes the average of a sequence of nullable Int32 values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int64>>>)	Computes the average of a sequence of nullable Int64 values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Single>>>)	Computes the average of a sequence of nullable Single values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Single>>)	Computes the average of a sequence of Single values that is obtained by invoking a projection function on each element of the input sequence.
Cast<TResult>(IQueryable)	Converts the elements of an IQueryable to the specified type.
Concat<TSource>(IQueryable<TSource>, IEnumerable<TSource>)	Concatenates two sequences.
Contains<TSource>(IQueryable<TSource>, TSource, IEqualityComparer<TSource>)	Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>.
Contains<TSource>(IQueryable<TSource>, TSource)	Determines whether a sequence contains a specified element by using the default equality comparer.
Count<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns the number of elements in the specified sequence that satisfies a condition.
Count<TSource>(IQueryable<TSource>)	Returns the number of elements in a sequence.
DefaultIfEmpty<TSource>(IQueryable<TSource>, TSource)	Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.
DefaultIfEmpty<TSource>(IQueryable<TSource>)	Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.
Distinct<TSource>(IQueryable<TSource>, IEqualityComparer<TSource>)	Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values.
Distinct<TSource>(IQueryable<TSource>)	Returns distinct elements from a sequence by using the default equality comparer to compare values.
ElementAt<TSource>(IQueryable<TSource>, Int32)	Returns the element at a specified index in a sequence.
ElementAtOrDefault<TSource>(IQueryable<TSource>, Int32)	Returns the element at a specified index in a sequence or a default value if the index is out of range.
Except<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Produces the set difference of two sequences by using the specified IEqualityComparer<T> to compare values.
Except<TSource>(IQueryable<TSource>, IEnumerable<TSource>)	Produces the set difference of two sequences by using the default equality comparer to compare values.
First<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns the first element of a sequence that satisfies a specified condition.
First<TSource>(IQueryable<TSource>)	Returns the first element of a sequence.
FirstOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns the first element of a sequence that satisfies a specified condition or a default value if no such element is found.
FirstOrDefault<TSource>(IQueryable<TSource>)	Returns the first element of a sequence, or a default value if the sequence contains no elements.
GroupBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IEqualityComparer<TKey>)	Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.
GroupBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)	Groups the elements of a sequence according to a specified key selector function.
GroupBy<TSource,TKey,TElement>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TSource,TElement>>, IEqualityComparer<TKey>)	Groups the elements of a sequence and projects the elements for each group by using a specified function. Key values are compared by using a specified comparer.
GroupBy<TSource,TKey,TElement>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TSource,TElement>>)	Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.
GroupBy<TSource,TKey,TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<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. Keys are compared by using a specified comparer.
GroupBy<TSource,TKey,TResult>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TKey,IEnumerable<TSource>,TResult>>)	Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
GroupBy<TSource,TKey,TElement,TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TSource,TElement>>, Expression<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. Keys are compared by using a specified comparer and the elements of each group are projected by using a specified function.
GroupBy<TSource,TKey,TElement,TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TSource,TElement>>, Expression<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.
GroupJoin<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<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.
GroupJoin<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,IEnumerable<TInner>,TResult>>)	Correlates the elements of two sequences based on key equality and groups the results. The default equality comparer is used to compare keys.
Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Produces the set intersection of two sequences by using the specified IEqualityComparer<T> to compare values.
Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>)	Produces the set intersection of two sequences by using the default equality comparer to compare values.
Join<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<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.
Join<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,TInner,TResult>>)	Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.
Last<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns the last element of a sequence that satisfies a specified condition.
Last<TSource>(IQueryable<TSource>)	Returns the last element in a sequence.
LastOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.
LastOrDefault<TSource>(IQueryable<TSource>)	Returns the last element in a sequence, or a default value if the sequence contains no elements.
LongCount<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns an Int64 that represents the number of elements in a sequence that satisfy a condition.
LongCount<TSource>(IQueryable<TSource>)	Returns an Int64 that represents the total number of elements in a sequence.
Max<TSource>(IQueryable<TSource>)	Returns the maximum value in a generic IQueryable<T>.
Max<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)	Invokes a projection function on each element of a generic IQueryable<T> and returns the maximum resulting value.
Min<TSource>(IQueryable<TSource>)	Returns the minimum value of a generic IQueryable<T>.
Min<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)	Invokes a projection function on each element of a generic IQueryable<T> and returns the minimum resulting value.
OfType<TResult>(IQueryable)	Filters the elements of an IQueryable based on a specified type.
OrderBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TKey>)	Sorts the elements of a sequence in ascending order by using a specified comparer.
OrderBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)	Sorts the elements of a sequence in ascending order according to a key.
OrderByDescending<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TKey>)	Sorts the elements of a sequence in descending order by using a specified comparer.
OrderByDescending<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)	Sorts the elements of a sequence in descending order according to a key.
Reverse<TSource>(IQueryable<TSource>)	Inverts the order of the elements in a sequence.
Select<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)	Projects each element of a sequence into a new form.
Select<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,Int32,TResult>>)	Projects each element of a sequence into a new form by incorporating the element's index.
SelectMany<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,IEnumerable<TResult>>>)	Projects each element of a sequence to an IEnumerable<T> and combines the resulting sequences into one sequence.
SelectMany<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,Int32,IEnumerable<TResult>>>)	Projects each element of a sequence to an IEnumerable<T> and combines 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>(IQueryable<TSource>, Expression<Func<TSource, IEnumerable<TCollection>>>, Expression<Func<TSource,TCollection, TResult>>)	Projects each element of a sequence to an IEnumerable<T> and invokes a result selector function on each element therein. The resulting values from each intermediate sequence are combined into a single, one-dimensional sequence and returned.
SelectMany<TSource,TCollection,TResult>(IQueryable<TSource>, Expression<Func<TSource, Int32,IEnumerable<TCollection>>>, Expression<Func<TSource,TCollection, TResult>>)	Projects each element of a sequence to an IEnumerable<T> that incorporates the index of the source element that produced it. A result selector function is invoked on each element of each intermediate sequence, and the resulting values are combined into a single, one-dimensional sequence and returned.
SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Determines whether two sequences are equal by using a specified IEqualityComparer<T> to compare elements.
SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)	Determines whether two sequences are equal by using the default equality comparer to compare elements.
Single<TSource>(IQueryable<TSource>, Expression<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.
Single<TSource>(IQueryable<TSource>)	Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.
SingleOrDefault<TSource>(IQueryable<TSource>, Expression<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.
SingleOrDefault<TSource>(IQueryable<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.
Skip<TSource>(IQueryable<TSource>, Int32)	Bypasses a specified number of elements in a sequence and then returns the remaining elements.
SkipWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.
SkipWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32,Boolean>>)	Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Decimal>>)	Computes the sum of the sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Double>>)	Computes the sum of the sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32>>)	Computes the sum of the sequence of Int32 values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int64>>)	Computes the sum of the sequence of Int64 values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Decimal>>>)	Computes the sum of the sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Double>>>)	Computes the sum of the sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int32>>>)	Computes the sum of the sequence of nullable Int32 values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int64>>>)	Computes the sum of the sequence of nullable Int64 values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Single>>>)	Computes the sum of the sequence of nullable Single values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Single>>)	Computes the sum of the sequence of Single values that is obtained by invoking a projection function on each element of the input sequence.
Take<TSource>(IQueryable<TSource>, Int32)	Returns a specified number of contiguous elements from the start of a sequence.
TakeWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns elements from a sequence as long as a specified condition is true.
TakeWhile<TSource>(IQueryable<TSource>, Expression<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.
Union<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Produces the set union of two sequences by using a specified IEqualityComparer<T>.
Union<TSource>(IQueryable<TSource>, IEnumerable<TSource>)	Produces the set union of two sequences by using the default equality comparer.
Where<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Filters a sequence of values based on a predicate.
Where<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32,Boolean>>)	Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.
Zip<TFirst,TSecond,TResult>(IQueryable<TFirst>, IEnumerable<TSecond>, Expression<Func<TFirst,TSecond,TResult>>)	Merges two sequences by using the specified predicate function.
SortBy<T>(IQueryable<T>, String)	Specifies a sort order.
Ancestors<T>(IEnumerable<T>, XName)	Returns a filtered collection of elements that contains the ancestors of every node in the source collection. Only elements that have a matching XName are included in the collection.
Ancestors<T>(IEnumerable<T>)	Returns a collection of elements that contains the ancestors of every node in the source collection.
DescendantNodes<T>(IEnumerable<T>)	Returns a collection of the descendant nodes of every document and element in the source collection.
Descendants<T>(IEnumerable<T>, 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.
Descendants<T>(IEnumerable<T>)	Returns a collection of elements that contains the descendant elements of every element and document in the source collection.
Elements<T>(IEnumerable<T>, XName)	Returns a filtered collection of the child elements of every element and document in the source collection. Only elements that have a matching XName are included in the collection.
Elements<T>(IEnumerable<T>)	Returns a collection of the child elements of every element and document in the source collection.
InDocumentOrder<T>(IEnumerable<T>)	Returns a collection of nodes that contains all nodes in the source collection, sorted in document order.
Nodes<T>(IEnumerable<T>)	Returns a collection of the child nodes of every document and element in the source collection.
Remove<T>(IEnumerable<T>)	Removes every node in the source collection from its parent node.