| IPredicateExpression Methods |
The IPredicateExpression type exposes the following members.
Methods| Name | Description | |
|---|---|---|
 | Add |
Adds an IPredicate implementing object to the PredicateExpression. This can be a Predicate derived class or a PredicateExpression.
If no object is present yet in the PredicateExpression, no operator is added, otherwise the object is added with an 'And'-operator.
|
| AddWithAnd |
Adds an IPredicate implementing object to the PredicateExpression with an 'And'-operator.
The object added can be a Predicate derived class or a PredicateExpression. If no objects are present yet in the PredicateExpression,
the operator is ignored.
|
| AddWithOr |
Adds an IPredicate implementing object to the PredicateExpression with an 'Or'-operator.
The object added can be a Predicate derived class or a PredicateExpression. If no objects are present yet in the PredicateExpression,
the operator is ignored.
|
| Clear |
Clears this instance.
|
| GetEnumerator | Returns an enumerator that iterates through a collection. (Inherited from IEnumerable.) |
| GetFrameworkElementsInPredicate |
Gets a list of all framework objects (fields, expression objects etc.) which are located in this IPredicate instance. E.g. a
FieldCompareValuePredicate will return a list with 1 IEntityFieldCore instance: the field to compare. If no framework elements are present in the
predicate, the base implementation is used, which returns an empty list. This routine is used to gather information for Linq queries.
(Inherited from IPredicate.) |
| ReadXml |
Deserializes the predicate data on the xml reader into a predicate instance
(Inherited from IPredicate.) |
| ToQueryText |
Retrieves a ready to use text representation of the contained Predicate.
(Inherited from IPredicate.) |
| ToQueryText(Boolean) |
Retrieves a ready to use text representation of the contained Predicate.
(Inherited from IPredicate.) |
| WriteXml |
Serializes the predicate as xml to the writer specified.
(Inherited from IPredicate.) |
Extension Methods| Name | Description | |
|---|---|---|
 | And |
Returns a new PredicateExpression with contents: predicate AND toAdd
(Defined by PredicateExtensionMethods.) |
| AndNot |
Returns a new PredicateExpression with contents: predicate AND NOT toAdd
(Defined by PredicateExtensionMethods.) |
| As |
Specifies an alias for the value returned by the predicate when the predicate is used in a projection. Equal to:
Functions.IIF(predicate, true, false).As(alias)
(Defined by PredicateExtensionMethods.) |
| AsBooleanValue |
Returns the predicate wrapped in a CASE WHEN (predicate) THEN 1 ELSE 0 END construct (as a function call expression) so the predicate can be
used as a real boolean value in other places than the Where clause.
(Defined by PredicateExtensionMethods.) |
| IsEmpty |
Determines whether the specified predicate or predicate expression is empty. A null passed in is also considered empty
(Defined by ORMClassExtensions.) |
| Or |
Returns a new PredicateExpression with contents: predicate OR toAdd
(Defined by PredicateExtensionMethods.) |
| OrNot |
Returns a new PredicateExpression with contents: predicate OR NOT toAdd
(Defined by PredicateExtensionMethods.) |
| ToValue |
Placeholder method which is used in a Select(lambda func) projection inside the lambda to specify the type of the result of the passed in predicate.
Use this method only when specifying a predicate in the projection lambda.
(Defined by PredicateExtensionMethods.) |
See Also