Click or drag to resize

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

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
public class FilterExpression : CommonExpression

The FilterExpression type exposes the following members.

Constructors
  NameDescription
Public methodFilterExpression
Initializes a new instance of the FilterExpression class.
Public methodFilterExpression(IPredicate)
Initializes a new instance of the FilterExpression class.
Public methodFilterExpression(IPredicate, IRelationCollection)
Initializes a new instance of the FilterExpression class.
Top
Properties
  NameDescription
Public propertyCanReduce
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.)
Public propertyNodeType
Gets the node type of this Expression.
(Inherited from CommonExpression.)
Public propertyPredicateElement
Gets or sets the predicate element.
Public propertyPropagatedRelations
Gets the propagated relations, which are relations required to navigate to the elements the RelationCollectionElement / PredicateElement work on / start from.
Public propertyRelationCollectionElement
Gets or sets the relation collection element.
Public propertyType
Gets the static type of the expression that this Expression represents.
(Inherited from CommonExpression.)
Top
Methods
  NameDescription
Protected methodAccept
Dispatches to the specific visit method for this node type. For example, MethodCallExpression calls the VisitMethodCall(MethodCallExpression).
(Inherited from Expression.)
Public methodAddPredicate
Adds the predicate.
Public methodAddPropagatedRelations
Adds the propagated relations specified as propagated relations to this filter.
Public methodAddRelations
Adds the relations.
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodHandle
Handles this instance using the specified handler.
(Overrides CommonExpressionHandle(ScopeHandlerBase).)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodReduce
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.)
Public methodReduceAndCheck
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.)
Public methodReduceExtensions
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.)
Public methodToString
Returns a textual representation of the Expression.
(Overrides ExpressionToString.)
Protected methodVisitChildren
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
See Also