FilterExpression Class

Special expression class which is used in expression tree handling to represent a filter node. A filter node is a node which contains a predicate expression and 0 or more relations, which are the basis for the filter (so if specified, the relations are required to reach the element(s) to filter on by the predicate(expression) inside the filter.

Inheritance Hierarchy

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

Namespace: SD.LLBLGen.Pro.LinqSupportClasses.ExpressionClasses
Assembly: SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.2.0.0 (5.2.17.0403)

Syntax

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public class FilterExpression : CommonExpression

Public Class FilterExpression
	Inherits CommonExpression

The FilterExpression type exposes the following members.

Constructors

	Name	Description
	FilterExpression	Initializes a new instance of the FilterExpression class.
	FilterExpression(IPredicate)	Initializes a new instance of the FilterExpression class.
	FilterExpression(IPredicate, IRelationCollection)	Initializes a new instance of the FilterExpression class.

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Properties

	Name	Description
	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.)
	NodeType	Gets the node type of this Expression. (Inherited from CommonExpression.)
	PredicateElement	Gets or sets the predicate element.
	PropagatedRelations	Gets the propagated relations, which are relations required to navigate to the elements the RelationCollectionElement / PredicateElement work on / start from.
	RelationCollectionElement	Gets or sets the relation collection element.
	Type	Gets the static type of the expression that this Expression represents. (Inherited from CommonExpression.)

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Methods

	Name	Description
	Accept	Dispatches to the specific visit method for this node type. For example, MethodCallExpression calls the VisitMethodCall(MethodCallExpression). (Inherited from Expression.)
	AddPredicate	Adds the predicate.
	AddPropagatedRelations	Adds the propagated relations specified as propagated relations to this filter.
	AddRelations	Adds the relations.
	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.)
	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.)

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Reference

SD.LLBLGen.Pro.LinqSupportClasses.ExpressionClasses Namespace