Delta<TEntityType> Class

Article
03/25/2014

A class the tracks changes (i.e. the delta) for a particular TEntityType.

Inheritance Hierarchy

System.Object
  System.Dynamic.DynamicObject
    System.Web.Http.OData.Delta
      System.Web.Http.OData.TypedDelta
        System.Web.Http.OData.Delta<TEntityType>

Namespace: System.Web.Http.OData
Assembly: System.Web.Http.OData (in System.Web.Http.OData.dll)

Syntax

'Declaration
Public Class Delta(Of TEntityType As Class) _
    Inherits TypedDelta _
    Implements IDelta
'Usage
Dim instance As Delta(Of TEntityType)

public class Delta<TEntityType> : TypedDelta, 
    IDelta 
where TEntityType : class

generic<typename TEntityType>
where TEntityType : ref class 
public ref class Delta : public TypedDelta, 
    IDelta

type Delta<'TEntityType when 'TEntityType : not struct> =  
    class 
        inherit TypedDelta 
        interface IDelta 
    end

JScript does not support generic types and methods.

Type Parameters

TEntityType
TEntityType is the base type of entity this delta tracks changes for.

The Delta<TEntityType> type exposes the following members.

Constructors

	Name	Description
	Delta<TEntityType>()	Initializes a new instance of Delta<TEntityType>.
	Delta<TEntityType>(Type)	Initializes a new instance of Delta<TEntityType>.
	Delta<TEntityType>(Type, IEnumerable<String>)	Initializes a new instance of Delta<TEntityType>.

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Properties

	Name	Description
	EntityType	Gets the actual type of the entity for which the changes are tracked. (Overrides TypedDelta.EntityType.)
	ExpectedClrType	(Overrides TypedDelta.ExpectedClrType.)

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Methods

	Name	Description
	Clear	Clears the Delta and resets the underlying Entity. (Overrides Delta.Clear().)
	CopyChangedValues	Copies the changed property values from the underlying entity (accessible via GetEntity() to the original entity.
	CopyUnchangedValues	Copies the unchanged property values from the underlying entity (accessible via GetEntity() ) to the original entity.
	Equals	(Inherited from Object.)
	Finalize	(Inherited from Object.)
	GetChangedPropertyNames	Returns the Properties that have been modified through this Delta as an enumeration of property names. (Overrides Delta.GetChangedPropertyNames().)
	GetDynamicMemberNames	(Overrides DynamicObject.GetDynamicMemberNames().)
	GetEntity	Returns the EntityType instance that holds all the changes (and original values) being tracked by this Delta.
	GetHashCode	(Inherited from Object.)
	GetMetaObject	(Inherited from DynamicObject.)
	GetType	(Inherited from Object.)
	GetUnchangedPropertyNames	Returns the properties that have not been modified through this Delta as an enumeration of property names. (Overrides Delta.GetUnchangedPropertyNames().)
	MemberwiseClone	(Inherited from Object.)
	Patch	Overwrites the original entity with the changes tracked by this Delta.
	Put	Overwrites the original entity with the values stored in this Delta.
	ToString	(Inherited from Object.)
	TryBinaryOperation	(Inherited from DynamicObject.)
	TryConvert	(Inherited from DynamicObject.)
	TryCreateInstance	(Inherited from DynamicObject.)
	TryDeleteIndex	(Inherited from DynamicObject.)
	TryDeleteMember	(Inherited from DynamicObject.)
	TryGetIndex	(Inherited from DynamicObject.)
	TryGetMember	Overrides the DynamicObject TryGetMember method, so that only the properties of Entity can be got. (Inherited from Delta.)
	TryGetPropertyType	Attempts to get the Type of the property called name from the underlying entity. (Overrides Delta.TryGetPropertyType(String, Type%).)
	TryGetPropertyValue	Attempts to get the value of the property called name from the underlying entity. (Overrides Delta.TryGetPropertyValue(String, Object%).)
	TryInvoke	(Inherited from DynamicObject.)
	TryInvokeMember	(Inherited from DynamicObject.)
	TrySetIndex	(Inherited from DynamicObject.)
	TrySetMember	Overrides the DynamicObject TrySetMember method, so that only the properties of Entity can be set. (Inherited from Delta.)
	TrySetPropertyValue	Attempts to set the property called name to the value specified. (Overrides Delta.TrySetPropertyValue(String, Object).)
	TryUnaryOperation	(Inherited from DynamicObject.)

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Thread Safety

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

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