TypedTableBase<T> Class

Definition

Namespace:

System.Data

Assembly:

System.Data.Common.dll

Source:

TypedTableBase.cs

This type is used as a base class for typed-DataTable object generation by Visual Studio and the XSD.exe .NET Framework tool, and is not intended to be used directly from your code.

generic <typename T>
 where T : DataRowpublic ref class TypedTableBase abstract : System::Data::DataTable, System::Collections::Generic::IEnumerable<T>

public abstract class TypedTableBase<T> : System.Data.DataTable, System.Collections.Generic.IEnumerable<T> where T : DataRow

type TypedTableBase<'T (requires 'T :> DataRow)> = class
    inherit DataTable
    interface seq<'T (requires 'T :> DataRow)>
    interface IEnumerable

Public MustInherit Class TypedTableBase(Of T)
Inherits DataTable
Implements IEnumerable(Of T)

Type Parameters

T

The type of objects in the source sequence represented by the table, typically DataRow.

Inheritance

Object

MarshalByValueComponent

DataTable

TypedTableBase<T>

Implements

IEnumerable<T> IEnumerable

Constructors

TypedTableBase<T>()	Initializes a new TypedTableBase<T>. This method supports typed-DataTable object generation by Visual Studio and the XSD.exe .NET Framework tool. This type is not intended to be used directly from your code.
TypedTableBase<T>(SerializationInfo, StreamingContext)	Obsolete. Initializes a new TypedTableBase<T>. This method supports typed-DataTable object generation by Visual Studio and the XSD.exe .NET Framework tool. This method is not intended to be used directly from your code.

Fields

fInitInProgress

Checks whether initialization is in progress. The initialization occurs at run time. (Inherited from DataTable)

Properties

CaseSensitive	Indicates whether string comparisons within the table are case-sensitive. (Inherited from DataTable)
ChildRelations	Gets the collection of child relations for this DataTable. (Inherited from DataTable)
Columns	Gets the collection of columns that belong to this table. (Inherited from DataTable)
Constraints	Gets the collection of constraints maintained by this table. (Inherited from DataTable)
Container	Gets the container for the component. (Inherited from MarshalByValueComponent)
DataSet	Gets the DataSet to which this table belongs. (Inherited from DataTable)
DefaultView	Gets a customized view of the table that may include a filtered view, or a cursor position. (Inherited from DataTable)
DesignMode	Gets a value indicating whether the component is currently in design mode. (Inherited from MarshalByValueComponent)
DisplayExpression	Gets or sets the expression that returns a value used to represent this table in the user interface. The DisplayExpression property lets you display the name of this table in a user interface. (Inherited from DataTable)
Events	Gets the list of event handlers that are attached to this component. (Inherited from MarshalByValueComponent)
ExtendedProperties	Gets the collection of customized user information. (Inherited from DataTable)
HasErrors	Gets a value indicating whether there are errors in any of the rows in any of the tables of the DataSet to which the table belongs. (Inherited from DataTable)
IsInitialized	Gets a value that indicates whether the DataTable is initialized. (Inherited from DataTable)
Locale	Gets or sets the locale information used to compare strings within the table. (Inherited from DataTable)
MinimumCapacity	Gets or sets the initial starting size for this table. (Inherited from DataTable)
Namespace	Gets or sets the namespace for the XML representation of the data stored in the DataTable. (Inherited from DataTable)
ParentRelations	Gets the collection of parent relations for this DataTable. (Inherited from DataTable)
Prefix	Gets or sets the namespace for the XML representation of the data stored in the DataTable. (Inherited from DataTable)
PrimaryKey	Gets or sets an array of columns that function as primary keys for the data table. (Inherited from DataTable)
RemotingFormat	Gets or sets the serialization format. (Inherited from DataTable)
Rows	Gets the collection of rows that belong to this table. (Inherited from DataTable)
Site	Gets or sets an ISite for the DataTable. (Inherited from DataTable)
TableName	Gets or sets the name of the DataTable. (Inherited from DataTable)

Methods

AcceptChanges()	Commits all the changes made to this table since the last time AcceptChanges() was called. (Inherited from DataTable)
BeginInit()	Begins the initialization of a DataTable that is used on a form or used by another component. The initialization occurs at run time. (Inherited from DataTable)
BeginLoadData()	Turns off notifications, index maintenance, and constraints while loading data. (Inherited from DataTable)
Cast<TResult>()	Converts the elements of an TypedTableBase<T> to the specified type. This method supports typed DataTable object generation by Visual Studio and the XSD.exe .NET Framework tool. This method is not intended to be used directly from your code.
Clear()	Clears the DataTable of all data. (Inherited from DataTable)
Clone()	Clones the structure of the DataTable, including all DataTable schemas and constraints. (Inherited from DataTable)
Compute(String, String)	Computes the given expression on the current rows that pass the filter criteria. (Inherited from DataTable)
Copy()	Copies both the structure and data for this DataTable. (Inherited from DataTable)
CreateDataReader()	Returns a DataTableReader corresponding to the data within this DataTable. (Inherited from DataTable)
CreateInstance()	Creates a new instance of DataTable. (Inherited from DataTable)
Dispose()	Releases all resources used by the MarshalByValueComponent. (Inherited from MarshalByValueComponent)
Dispose(Boolean)	Releases the unmanaged resources used by the MarshalByValueComponent and optionally releases the managed resources. (Inherited from MarshalByValueComponent)
EndInit()	Ends the initialization of a DataTable that is used on a form or used by another component. The initialization occurs at run time. (Inherited from DataTable)
EndLoadData()	Turns on notifications, index maintenance, and constraints after loading data. (Inherited from DataTable)
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetChanges()	Gets a copy of the DataTable that contains all changes made to it since it was loaded or AcceptChanges() was last called. (Inherited from DataTable)
GetChanges(DataRowState)	Gets a copy of the DataTable containing all changes made to it since it was last loaded, or since AcceptChanges() was called, filtered by DataRowState. (Inherited from DataTable)
GetEnumerator()	Returns an enumerator for the typed-DataRow. This method supports typed-DataTable object generation by Visual Studio and the XSD.exe .NET Framework tool. This method is not intended to be used directly from your code.
GetErrors()	Gets an array of DataRow objects that contain errors. (Inherited from DataTable)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext)	Obsolete. Populates a serialization information object with the data needed to serialize the DataTable. (Inherited from DataTable)
GetRowType()	Gets the row type. (Inherited from DataTable)
GetSchema()	For a description of this member, see GetSchema(). (Inherited from DataTable)
GetService(Type)	Gets the implementer of the IServiceProvider. (Inherited from MarshalByValueComponent)
GetType()	Gets the Type of the current instance. (Inherited from Object)
ImportRow(DataRow)	Copies a DataRow into a DataTable, preserving any property settings, as well as original and current values. (Inherited from DataTable)
Load(IDataReader, LoadOption, FillErrorEventHandler)	Fills a DataTable with values from a data source using the supplied IDataReader using an error-handling delegate. (Inherited from DataTable)
Load(IDataReader, LoadOption)	Fills a DataTable with values from a data source using the supplied IDataReader. If the DataTable already contains rows, the incoming data from the data source is merged with the existing rows according to the value of the loadOption parameter. (Inherited from DataTable)
Load(IDataReader)	Fills a DataTable with values from a data source using the supplied IDataReader. If the DataTable already contains rows, the incoming data from the data source is merged with the existing rows. (Inherited from DataTable)
LoadDataRow(Object[], Boolean)	Finds and updates a specific row. If no matching row is found, a new row is created using the given values. (Inherited from DataTable)
LoadDataRow(Object[], LoadOption)	Finds and updates a specific row. If no matching row is found, a new row is created using the given values. (Inherited from DataTable)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
Merge(DataTable, Boolean, MissingSchemaAction)	Merge the specified DataTable with the current DataTable, indicating whether to preserve changes and how to handle missing schema in the current DataTable. (Inherited from DataTable)
Merge(DataTable, Boolean)	Merge the specified DataTable with the current DataTable, indicating whether to preserve changes in the current DataTable. (Inherited from DataTable)
Merge(DataTable)	Merge the specified DataTable with the current DataTable. (Inherited from DataTable)
NewRow()	Creates a new DataRow with the same schema as the table. (Inherited from DataTable)
NewRowArray(Int32)	Returns an array of DataRow. (Inherited from DataTable)
NewRowFromBuilder(DataRowBuilder)	Creates a new row from an existing row. (Inherited from DataTable)
OnColumnChanged(DataColumnChangeEventArgs)	Raises the ColumnChanged event. (Inherited from DataTable)
OnColumnChanging(DataColumnChangeEventArgs)	Raises the ColumnChanging event. (Inherited from DataTable)
OnPropertyChanging(PropertyChangedEventArgs)	Raises the PropertyChanged event. (Inherited from DataTable)
OnRemoveColumn(DataColumn)	Notifies the DataTable that a DataColumn is being removed. (Inherited from DataTable)
OnRowChanged(DataRowChangeEventArgs)	Raises the RowChanged event. (Inherited from DataTable)
OnRowChanging(DataRowChangeEventArgs)	Raises the RowChanging event. (Inherited from DataTable)
OnRowDeleted(DataRowChangeEventArgs)	Raises the RowDeleted event. (Inherited from DataTable)
OnRowDeleting(DataRowChangeEventArgs)	Raises the RowDeleting event. (Inherited from DataTable)
OnTableCleared(DataTableClearEventArgs)	Raises the TableCleared event. (Inherited from DataTable)
OnTableClearing(DataTableClearEventArgs)	Raises the TableClearing event. (Inherited from DataTable)
OnTableNewRow(DataTableNewRowEventArgs)	Raises the TableNewRow event. (Inherited from DataTable)
ReadXml(Stream)	Reads XML schema and data into the DataTable using the specified Stream. (Inherited from DataTable)
ReadXml(String)	Reads XML schema and data into the DataTable from the specified file. (Inherited from DataTable)
ReadXml(TextReader)	Reads XML schema and data into the DataTable using the specified TextReader. (Inherited from DataTable)
ReadXml(XmlReader)	Reads XML Schema and Data into the DataTable using the specified XmlReader. (Inherited from DataTable)
ReadXmlSchema(Stream)	Reads an XML schema into the DataTable using the specified stream. (Inherited from DataTable)
ReadXmlSchema(String)	Reads an XML schema into the DataTable from the specified file. (Inherited from DataTable)
ReadXmlSchema(TextReader)	Reads an XML schema into the DataTable using the specified TextReader. (Inherited from DataTable)
ReadXmlSchema(XmlReader)	Reads an XML schema into the DataTable using the specified XmlReader. (Inherited from DataTable)
ReadXmlSerializable(XmlReader)	Reads from an XML stream. (Inherited from DataTable)
RejectChanges()	Rolls back all changes that have been made to the table since it was loaded, or the last time AcceptChanges() was called. (Inherited from DataTable)
Reset()	Resets the DataTable to its original state. Reset removes all data, indexes, relations, and columns of the table. If a DataSet includes a DataTable, the table will still be part of the DataSet after the table is reset. (Inherited from DataTable)
Select()	Gets an array of all DataRow objects. (Inherited from DataTable)
Select(String, String, DataViewRowState)	Gets an array of all DataRow objects that match the filter in the order of the sort that match the specified state. (Inherited from DataTable)
Select(String, String)	Gets an array of all DataRow objects that match the filter criteria, in the specified sort order. (Inherited from DataTable)
Select(String)	Gets an array of all DataRow objects that match the filter criteria. (Inherited from DataTable)
ToString()	Gets the TableName and DisplayExpression, if there is one as a concatenated string. (Inherited from DataTable)
WriteXml(Stream, Boolean)	Writes the current contents of the DataTable as XML using the specified Stream. To save the data for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXml(Stream, XmlWriteMode, Boolean)	Writes the current data, and optionally the schema, for the DataTable to the specified file using the specified XmlWriteMode. To write the schema, set the value for the mode parameter to WriteSchema. To save the data for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXml(Stream, XmlWriteMode)	Writes the current data, and optionally the schema, for the DataTable to the specified file using the specified XmlWriteMode. To write the schema, set the value for the mode parameter to WriteSchema. (Inherited from DataTable)
WriteXml(Stream)	Writes the current contents of the DataTable as XML using the specified Stream. (Inherited from DataTable)
WriteXml(String, Boolean)	Writes the current contents of the DataTable as XML using the specified file. To save the data for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXml(String, XmlWriteMode, Boolean)	Writes the current data, and optionally the schema, for the DataTable using the specified file and XmlWriteMode. To write the schema, set the value for the mode parameter to WriteSchema. To save the data for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXml(String, XmlWriteMode)	Writes the current data, and optionally the schema, for the DataTable using the specified file and XmlWriteMode. To write the schema, set the value for the mode parameter to WriteSchema. (Inherited from DataTable)
WriteXml(String)	Writes the current contents of the DataTable as XML using the specified file. (Inherited from DataTable)
WriteXml(TextWriter, Boolean)	Writes the current contents of the DataTable as XML using the specified TextWriter. To save the data for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXml(TextWriter, XmlWriteMode, Boolean)	Writes the current data, and optionally the schema, for the DataTable using the specified TextWriter and XmlWriteMode. To write the schema, set the value for the mode parameter to WriteSchema. To save the data for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXml(TextWriter, XmlWriteMode)	Writes the current data, and optionally the schema, for the DataTable using the specified TextWriter and XmlWriteMode. To write the schema, set the value for the mode parameter to WriteSchema. (Inherited from DataTable)
WriteXml(TextWriter)	Writes the current contents of the DataTable as XML using the specified TextWriter. (Inherited from DataTable)
WriteXml(XmlWriter, Boolean)	Writes the current contents of the DataTable as XML using the specified XmlWriter. (Inherited from DataTable)
WriteXml(XmlWriter, XmlWriteMode, Boolean)	Writes the current data, and optionally the schema, for the DataTable using the specified XmlWriter and XmlWriteMode. To write the schema, set the value for the mode parameter to WriteSchema. To save the data for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXml(XmlWriter, XmlWriteMode)	Writes the current data, and optionally the schema, for the DataTable using the specified XmlWriter and XmlWriteMode. To write the schema, set the value for the mode parameter to WriteSchema. (Inherited from DataTable)
WriteXml(XmlWriter)	Writes the current contents of the DataTable as XML using the specified XmlWriter. (Inherited from DataTable)
WriteXmlSchema(Stream, Boolean)	Writes the current data structure of the DataTable as an XML schema to the specified stream. To save the schema for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXmlSchema(Stream)	Writes the current data structure of the DataTable as an XML schema to the specified stream. (Inherited from DataTable)
WriteXmlSchema(String, Boolean)	Writes the current data structure of the DataTable as an XML schema to the specified file. To save the schema for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXmlSchema(String)	Writes the current data structure of the DataTable as an XML schema to the specified file. (Inherited from DataTable)
WriteXmlSchema(TextWriter, Boolean)	Writes the current data structure of the DataTable as an XML schema using the specified TextWriter. To save the schema for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXmlSchema(TextWriter)	Writes the current data structure of the DataTable as an XML schema using the specified TextWriter. (Inherited from DataTable)
WriteXmlSchema(XmlWriter, Boolean)	Writes the current data structure of the DataTable as an XML schema using the specified XmlWriter. To save the schema for the table and all its descendants, set the writeHierarchy parameter to true. (Inherited from DataTable)
WriteXmlSchema(XmlWriter)	Writes the current data structure of the DataTable as an XML schema using the specified XmlWriter. (Inherited from DataTable)

Events

ColumnChanged	Occurs after a value has been changed for the specified DataColumn in a DataRow. (Inherited from DataTable)
ColumnChanging	Occurs when a value is being changed for the specified DataColumn in a DataRow. (Inherited from DataTable)
Disposed	Adds an event handler to listen to the Disposed event on the component. (Inherited from MarshalByValueComponent)
Initialized	Occurs after the DataTable is initialized. (Inherited from DataTable)
RowChanged	Occurs after a DataRow has been changed successfully. (Inherited from DataTable)
RowChanging	Occurs when a DataRow is changing. (Inherited from DataTable)
RowDeleted	Occurs after a row in the table has been deleted. (Inherited from DataTable)
RowDeleting	Occurs before a row in the table is about to be deleted. (Inherited from DataTable)
TableCleared	Occurs after a DataTable is cleared. (Inherited from DataTable)
TableClearing	Occurs when a DataTable is cleared. (Inherited from DataTable)
TableNewRow	Occurs when a new DataRow is inserted. (Inherited from DataTable)

Explicit Interface Implementations

IEnumerable.GetEnumerator()	Returns an enumerator for the typed-DataRow. This method supports typed-DataTable object generation by Visual Studio and the XSD.exe .NET Framework tool. This method is not intended to be used directly from your code.
IListSource.ContainsListCollection	For a description of this member, see ContainsListCollection. (Inherited from DataTable)
IListSource.GetList()	For a description of this member, see GetList(). (Inherited from DataTable)
IXmlSerializable.GetSchema()	For a description of this member, see GetSchema(). (Inherited from DataTable)
IXmlSerializable.ReadXml(XmlReader)	For a description of this member, see ReadXml(XmlReader). (Inherited from DataTable)
IXmlSerializable.WriteXml(XmlWriter)	For a description of this member, see WriteXml(XmlWriter). (Inherited from DataTable)

Extension Methods

ToFrozenDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)	Creates a FrozenDictionary<TKey,TValue> from an IEnumerable<T> according to specified key selector function.
ToFrozenDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)	Creates a FrozenDictionary<TKey,TValue> from an IEnumerable<T> according to specified key selector and element selector functions.
ToFrozenSet<T>(IEnumerable<T>, IEqualityComparer<T>)	Creates a FrozenSet<T> with the specified values.
ToImmutableArray<TSource>(IEnumerable<TSource>)	Creates an immutable array from the specified collection.
ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)	Constructs an immutable dictionary based on some transformation of a sequence.
ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)	Constructs an immutable dictionary from an existing collection of elements, applying a transformation function to the source keys.
ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>, IEqualityComparer<TValue>)	Enumerates and transforms a sequence, and produces an immutable dictionary of its contents by using the specified key and value comparers.
ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>)	Enumerates and transforms a sequence, and produces an immutable dictionary of its contents by using the specified key comparer.
ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>)	Enumerates and transforms a sequence, and produces an immutable dictionary of its contents.
ToImmutableHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)	Enumerates a sequence, produces an immutable hash set of its contents, and uses the specified equality comparer for the set type.
ToImmutableHashSet<TSource>(IEnumerable<TSource>)	Enumerates a sequence and produces an immutable hash set of its contents.
ToImmutableList<TSource>(IEnumerable<TSource>)	Enumerates a sequence and produces an immutable list of its contents.
ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>, IEqualityComparer<TValue>)	Enumerates and transforms a sequence, and produces an immutable sorted dictionary of its contents by using the specified key and value comparers.
ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>)	Enumerates and transforms a sequence, and produces an immutable sorted dictionary of its contents by using the specified key comparer.
ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>)	Enumerates and transforms a sequence, and produces an immutable sorted dictionary of its contents.
ToImmutableSortedSet<TSource>(IEnumerable<TSource>, IComparer<TSource>)	Enumerates a sequence, produces an immutable sorted set of its contents, and uses the specified comparer.
ToImmutableSortedSet<TSource>(IEnumerable<TSource>)	Enumerates a sequence and produces an immutable sorted set of its contents.
AsDataView(DataTable)	Creates and returns a LINQ-enabled DataView object.
AsEnumerable(DataTable)	Returns an IEnumerable<T> object, where the generic parameter T is DataRow. This object can be used in a LINQ expression or method query.
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.
AsEnumerable<TRow>(TypedTableBase<TRow>)	Enumerates the data row elements of the TypedTableBase<T> and returns an EnumerableRowCollection<TRow> object, where the generic parameter T is DataRow. This object can be used in a LINQ expression or method query.
ElementAtOrDefault<TRow>(TypedTableBase<TRow>, Int32)	Returns the element at a specified row in a sequence or a default value if the row is out of range.
OrderBy<TRow,TKey>(TypedTableBase<TRow>, Func<TRow,TKey>, IComparer<TKey>)	Sorts the rows of a TypedTableBase<T> in ascending order according to the specified key and comparer.
OrderBy<TRow,TKey>(TypedTableBase<TRow>, Func<TRow,TKey>)	Sorts the rows of a TypedTableBase<T> in ascending order according to the specified key.
OrderByDescending<TRow,TKey>(TypedTableBase<TRow>, Func<TRow,TKey>, IComparer<TKey>)	Sorts the rows of a TypedTableBase<T> in descending order according to the specified key and comparer.
OrderByDescending<TRow,TKey>(TypedTableBase<TRow>, Func<TRow,TKey>)	Sorts the rows of a TypedTableBase<T> in descending order according to the specified key.
Select<TRow,S>(TypedTableBase<TRow>, Func<TRow,S>)	Projects each element of a TypedTableBase<T> into a new form.
Where<TRow>(TypedTableBase<TRow>, Func<TRow,Boolean>)	Filters a sequence of rows based on the specified predicate.
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.
AggregateBy<TSource,TKey,TAccumulate>(IEnumerable<TSource>, Func<TSource, TKey>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>, IEqualityComparer<TKey>)	Applies an accumulator function over a sequence, grouping results by key.
AggregateBy<TSource,TKey,TAccumulate>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TKey,TAccumulate>, Func<TAccumulate,TSource,TAccumulate>, IEqualityComparer<TKey>)	Applies an accumulator function over a sequence, grouping results by key.
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.
Chunk<TSource>(IEnumerable<TSource>, Int32)	Splits the elements of a sequence into chunks of size at most size.
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.
CountBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)	Returns the count of elements in the source sequence grouped by key.
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.
DistinctBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)	Returns distinct elements from a sequence according to a specified key selector function and using a specified comparer to compare keys.
DistinctBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)	Returns distinct elements from a sequence according to a specified key selector function.
ElementAt<TSource>(IEnumerable<TSource>, Index)	Returns the element at a specified index in a sequence.
ElementAt<TSource>(IEnumerable<TSource>, Int32)	Returns the element at a specified index in a sequence.
ElementAtOrDefault<TSource>(IEnumerable<TSource>, Index)	Returns the element at a specified index in a sequence or a default value if the index is out of range.
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.
ExceptBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TKey>, Func<TSource,TKey>, IEqualityComparer<TKey>)	Produces the set difference of two sequences according to a specified key selector function.
ExceptBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TKey>, Func<TSource,TKey>)	Produces the set difference of two sequences according to a specified key selector function.
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>, TSource)	Returns the first element of a sequence, or a specified default value if the sequence contains no elements.
FirstOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>, TSource)	Returns the first element of the sequence that satisfies a condition, or a specified default value if no such element is found.
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.
Index<TSource>(IEnumerable<TSource>)	Returns an enumerable that incorporates the element's index into a tuple.
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.
IntersectBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TKey>, Func<TSource,TKey>, IEqualityComparer<TKey>)	Produces the set intersection of two sequences according to a specified key selector function.
IntersectBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TKey>, Func<TSource,TKey>)	Produces the set intersection of two sequences according to a specified key selector function.
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>, TSource)	Returns the last element of a sequence, or a specified default value if the sequence contains no elements.
LastOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>, TSource)	Returns the last element of a sequence that satisfies a condition, or a specified default value if no such element is found.
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>, IComparer<TSource>)	Returns the maximum value in a generic 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.
MaxBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)	Returns the maximum value in a generic sequence according to a specified key selector function and key comparer.
MaxBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)	Returns the maximum value in a generic sequence according to a specified key selector function.
Min<TSource>(IEnumerable<TSource>, IComparer<TSource>)	Returns the minimum value in a generic sequence.
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.
MinBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)	Returns the minimum value in a generic sequence according to a specified key selector function and key comparer.
MinBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)	Returns the minimum value in a generic sequence according to a specified key selector function.
OfType<TResult>(IEnumerable)	Filters the elements of an IEnumerable based on a specified type.
Order<T>(IEnumerable<T>, IComparer<T>)	Sorts the elements of a sequence in ascending order.
Order<T>(IEnumerable<T>)	Sorts the elements of a sequence in ascending order.
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.
OrderDescending<T>(IEnumerable<T>, IComparer<T>)	Sorts the elements of a sequence in descending order.
OrderDescending<T>(IEnumerable<T>)	Sorts the elements of a sequence in descending order.
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>, TSource)	Returns the only element of a sequence, or a specified default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.
SingleOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>, TSource)	Returns the only element of a sequence that satisfies a specified condition, or a specified default value if no such element exists; this method throws an exception if more than one element satisfies the condition.
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.
SkipLast<TSource>(IEnumerable<TSource>, Int32)	Returns a new enumerable collection that contains the elements from source with the last count elements of the source collection omitted.
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.
Take<TSource>(IEnumerable<TSource>, Range)	Returns a specified range of contiguous elements from a sequence.
TakeLast<TSource>(IEnumerable<TSource>, Int32)	Returns a new enumerable collection that contains the last count elements from source.
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.
TryGetNonEnumeratedCount<TSource>(IEnumerable<TSource>, Int32)	Attempts to determine the number of elements in a sequence without forcing an enumeration.
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.
UnionBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)	Produces the set union of two sequences according to a specified key selector function.
UnionBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TSource>, Func<TSource,TKey>)	Produces the set union of two sequences according to a specified key selector function.
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>(IEnumerable<TFirst>, IEnumerable<TSecond>)	Produces a sequence of tuples with elements from the two specified sequences.
Zip<TFirst,TSecond,TThird>(IEnumerable<TFirst>, IEnumerable<TSecond>, IEnumerable<TThird>)	Produces a sequence of tuples with elements from the three specified sequences.
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.
AsQueryable(IEnumerable)	Converts an IEnumerable to an IQueryable.
AsQueryable<TElement>(IEnumerable<TElement>)	Converts a generic IEnumerable<T> to a generic IQueryable<T>.
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.

See also

• Querying Typed DataSets
• Generating Strongly Typed DataSets