System.Data.Linq
Microsoft.CSharp.RuntimeBinder
Microsoft.Devices
Microsoft.Devices.Radio
Microsoft.Devices.Sensors
Microsoft.Internal
Microsoft.Phone
Microsoft.Phone.Automation.Peers
Microsoft.Phone.BackgroundAudio
Microsoft.Phone.BackgroundTransfer
Microsoft.Phone.Controls
Microsoft.Phone.Controls.Primitives
Microsoft.Phone.Data.Linq
Microsoft.Phone.Data.Linq.Mapping
Microsoft.Phone.DeviceManufacturers
Microsoft.Phone.Globalization
Microsoft.Phone.Info
Microsoft.Phone.Maps
Microsoft.Phone.Maps.Controls
Microsoft.Phone.Maps.Services
Microsoft.Phone.Marketplace
Microsoft.Phone.Media
Microsoft.Phone.Net.NetworkInformation
Microsoft.Phone.Networking.Voip
Microsoft.Phone.NetworkOperators
Microsoft.Phone.Notification
Microsoft.Phone.Scheduler
Microsoft.Phone.SecureElement
Microsoft.Phone.Shell
Microsoft.Phone.Storage
Microsoft.Phone.Tasks
Microsoft.Phone.UserData
Microsoft.Phone.Wallet
Microsoft.Win32.SafeHandles
System
System.CodeDom.Compiler
System.Collections
System.Collections.Generic
System.Collections.ObjectModel
System.Collections.Specialized
System.ComponentModel
System.Configuration.Assemblies
System.Data
System.Data.Common
System.Data.Linq
Binary Class
ChangeAction Enumeration
ChangeConflictCollection Class
ChangeConflictException Class
ChangeSet Class
CompiledQuery Class
ConflictMode Enumeration
DataContext Class
DataLoadOptions Class
DBConvert Class
DuplicateKeyException Class
EntityRef(TEntity) Structure
EntitySet(TEntity) Class
ForeignKeyReferenceAlreadyHasValueException Class
ITable Interface
ITable(TEntity) Interface
Link(T) Structure
MemberChangeConflict Class
ModifiedMemberInfo Structure
ObjectChangeConflict Class
RefreshMode Enumeration
Table(TEntity) Class
System.Data.Linq.Mapping
System.Data.Linq.SqlClient
System.Device.Location
System.Diagnostics
System.Diagnostics.CodeAnalysis
System.Diagnostics.Contracts
System.Diagnostics.SymbolStore
System.Dynamic
System.Globalization
System.IO
System.IO.IsolatedStorage
System.Linq
System.Linq.Expressions
System.Net
System.Net.Browser
System.Net.NetworkInformation
System.Net.Sockets
System.Reflection
System.Reflection.Emit
System.Resources
System.Runtime
System.Runtime.CompilerServices
System.Runtime.ExceptionServices
System.Runtime.InteropServices
System.Runtime.InteropServices.Automation
System.Runtime.InteropServices.ComTypes
System.Runtime.InteropServices.WindowsRuntime
System.Runtime.Serialization
System.Runtime.Serialization.Json
System.Runtime.Versioning
System.Security
System.Security.Cryptography
System.Security.Cryptography.X509Certificates
System.Security.Permissions
System.Security.Principal
System.ServiceModel
System.ServiceModel.Channels
System.ServiceModel.Description
System.ServiceModel.Dispatcher
System.ServiceModel.Security
System.Text
System.Text.RegularExpressions
System.Threading
System.Threading.Tasks
System.Windows
System.Windows.Automation
System.Windows.Automation.Peers
System.Windows.Automation.Provider
System.Windows.Automation.Text
System.Windows.Controls
System.Windows.Controls.Primitives
System.Windows.Data
System.Windows.Documents
System.Windows.Ink
System.Windows.Input
System.Windows.Interop
System.Windows.Markup
System.Windows.Media
System.Windows.Media.Animation
System.Windows.Media.Effects
System.Windows.Media.Imaging
System.Windows.Media.Media3D
System.Windows.Navigation
System.Windows.Resources
System.Windows.Shapes
System.Windows.Threading
System.Xml
System.Xml.Linq
System.Xml.Schema
System.Xml.Serialization
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System.Data.Linq Namespace

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

The System.Data.Linq namespace contains classes that support interaction with a local database in Windows Phone applications.

For information about using a local database in your Windows Phone application, see Local database for Windows Phone 8.

  ClassDescription
Public classBinaryRepresents an immutable block of binary data.
Public classChangeConflictCollectionReturns a collection of objects involved in concurrency conflicts.
Public classChangeConflictExceptionThrown when an update fails because database values have been updated since the client last read them.
Public classChangeSetProvides a container to hold changes.
Public classCompiledQueryProvides for compilation and caching of queries for reuse.
Public classDataContextThe data context is an object representing the database, a proxy, containing Table objects that represent the tables in the database.
Public classDataLoadOptionsProvides for immediate loading and filtering of related data.
Public classDBConvertInfrastructure. Used internally to convert one type to another.
Public classDuplicateKeyExceptionThrown when an attempt is made to add an object to the identity cache by using a key that is already being used.
Public classEntitySet<TEntity>Provides for deferred loading and relationship maintenance for the collection side of one-to-many and one-to-one relationships in a LINQ to SQL applications. 
Public classForeignKeyReferenceAlreadyHasValueExceptionRepresents errors that occur when an attempt is made to change a foreign key when the entity is already loaded.
Public classMemberChangeConflictRepresents a situation in which an attempted update fails because member values have been updated since the client last read them.
Public classObjectChangeConflictRepresents an update attempt with one or more optimistic concurrency conflicts.
Public classTable<TEntity>Represents a table for a particular type in the underlying database.

  StructureDescription
Public structureEntityRef<TEntity>Provides for deferred loading and relationship maintenance for the singleton side of a one-to-many relationship in a LINQ to SQL application.
Public structureLink<T>Used to enable deferred loading of individual properties (similar to EntityRef<TEntity>).
Public structureModifiedMemberInfoHolds values of members that have been modified in LINQ to SQL applications.

  InterfaceDescription
Public interfaceITableUsed for weakly typed query scenarios.
Public interfaceITable<TEntity>Represents a table for a particular type in the underlying database.

  EnumerationDescription
Public enumerationChangeActionDescribes the type of change the entity will undergo when changes are submitted to the database.
Public enumerationConflictModeSpecifies when concurrency conflicts should be reported.
Public enumerationRefreshModeDefines how the Refresh method handles optimistic concurrency conflicts.

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