EntityFieldExpression Class

Specific expression class which represents an EntityField(2) object. It could be that the field is in a related entity (e.g. od.Order.Customer.Country), and relations are necessary to access the field. These relations are then part of this entityfield expression.

Inheritance Hierarchy

SystemObject
  System.Linq.ExpressionsExpression
    SD.LLBLGen.Pro.LinqSupportClasses.ExpressionClassesCommonExpression
      SD.LLBLGen.Pro.LinqSupportClasses.ExpressionClassesEntityFieldExpression

Namespace: SD.LLBLGen.Pro.LinqSupportClasses.ExpressionClasses
Assembly: SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.9.0.0 (5.9.0)

Syntax

Copy

public class EntityFieldExpression : CommonExpression, 
	IRelationPropagator

Public Class EntityFieldExpression
	Inherits CommonExpression
	Implements IRelationPropagator

The EntityFieldExpression type exposes the following members.

Constructors

	Name	Description
	EntityFieldExpression(IEntityFieldCore, SetAlias)	Initializes a new instance of the EntityFieldExpression class.
	EntityFieldExpression(IEntityFieldCore, SetAlias, SetAlias)	Initializes a new instance of the EntityFieldExpression class.
	EntityFieldExpression(IEntityFieldCore, Type, SetAlias)	Initializes a new instance of the EntityFieldExpression class.
	EntityFieldExpression(IEntityFieldCore, Type, SetAlias, SetAlias)	Initializes a new instance of the EntityFieldExpression class.

Top

Properties

	Name	Description
	AliasOfContainingSet	Gets or sets the alias of the field containing set.
	AliasOfRealSource	The alias of the real source. Can be different than the AliasOfContainingSet, e.g. when the real source is inside a derived table.
	CanReduce	Indicates that the node can be reduced to a simpler node. If this returns true, Reduce() can be called to produce the reduced form. (Inherited from Expression.)
	FieldAsString	Gets the field as string.
	FieldObject	Gets or sets the Field
	NodeType	Gets the node type of this Expression. (Inherited from CommonExpression.)
	RelationsToUse	Gets the relations required to access this field. Can be null (which means: no relations needed)
	Type	Gets the static type of the expression that this Expression represents. (Inherited from CommonExpression.)

Top

Methods

	Name	Description
	Accept	Dispatches to the specific visit method for this node type. For example, MethodCallExpression calls the VisitMethodCall(MethodCallExpression). (Inherited from Expression.)
	AddRelations	Adds the relations passed in. Relations are added to this entityfield expression if the field is in a related entity and the relations contained inside this field object are required to access the field.
	CorrectRenamedFieldIfRequired	Corrects the name of the field of this expression to a renamed variant if the field it is targeting has been renamed due to a field duplicate situation.
	CreateCloneWithDifferentType	Creates a clone of this EntityFieldExpression with the same elements and a different Type
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetFieldObjectWithProperObjectAlias	Gets the field object with proper object alias. It will apply the set AliasOfContainingSet if the field object's ObjectAlias is empty
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	Handle	Handles this instance using the specified handler. (Overrides CommonExpressionHandle(ScopeHandlerBase).)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Reduce	Reduces this node to a simpler expression. If CanReduce returns true, this should return a valid expression. This method can return another node which itself must be reduced. (Inherited from Expression.)
	ReduceAndCheck	Reduces this node to a simpler expression. If CanReduce returns true, this should return a valid expression. This method can return another node which itself must be reduced. (Inherited from Expression.)
	ReduceExtensions	Reduces the expression to a known node type (that is not an Extension node) or just returns the expression if it is already a known type. (Inherited from Expression.)
	ToString	Returns a textual representation of the Expression. (Overrides ExpressionToString.)
	VisitChildren	Reduces the node and then calls the visitor delegate on the reduced expression. The method throws an exception if the node is not reducible. (Inherited from Expression.)

Top

Reference

SD.LLBLGen.Pro.LinqSupportClasses.ExpressionClasses Namespace