BuyLog In
eXpress Persistent Objects
All docs
V 21.2
21.2
21.1
20.2
20.1
19.2
19.1
18.2
18.1
17.2
Search in…
Docs > API Reference > DevExpress.Xpo > Session > Methods > Evaluate
All docs
V21.2
21.2
21.1
20.2
20.1
19.2
19.1
18.2
18.1
17.2
.NET Framework 4.5.2+
.NET Framework 4.5.2+
.NET Standard 2.0+
Full-text search
eXpress Persistent Objects
.NET Core 3.0+ and .NET Standard 2.0 Support
Getting Started
Product Information
Connect to a Data Store
Create a Data Model
Create-Read-Update-Delete (CRUD)
Query and Shape Data
Best Practices and Troubleshooting
Design-Time Features
Examples
Member Tables
API Reference
DevExpress.Xpo
AggregatedAttribute
AssociationAttribute
AsyncBehavior
AsyncCommitCallback
AsyncSelectDataCallback
CacheBehavior
CollectionBindingBehavior
ColumnDbDefaultValueAttribute
ColumnDefaultValueAttribute
CommitObjectStubsResult
CustomAttribute
CustomCriteriaManager
DataViewPropertiesCollection
DataViewProperty
DataViewRecord
DbTypeAttribute
DefaultMembersPersistence
DefaultMembersPersistenceAttribute
DeferredDeletionAttribute
DelayedAttribute
DisplayNameAttribute
ExplicitLoadingAttribute
ExplicitUnitOfWork
FetchOnlyAttribute
GetObjectStubsByKeyQuery
GuidGenerationMode
HiddenAttribute
ICustomAggregateQueryable
ICustomCriteriaOperatorQueryable
ICustomFunctionOperatorQueryable
IDataLayer
IDataLayerAsync
IdentityMapBehavior
IndexedAttribute
IndicesAttribute
IObjectLayer
IObjectLayerAsync
IObjectLayerEx
IObjectLayerOnSession
ISerializableObjectLayer
ISerializableObjectLayerEx
IXPModificationsStore
IXPObject
IXPSimpleObject
KeyAttribute
LoadDataMemberOrderItem
LockingOption
ManyToManyAliasAttribute
MapInheritanceAttribute
MapInheritanceType
MemberDesignTimeVisibilityAttribute
MergeCollisionBehaviorAttribute
NestedUnitOfWork
NoForeignKeyAttribute
NonPersistentAttribute
NullableAttribute
NullableBehavior
NullableBehaviorAttribute
NullValueAttribute
ObjectChangeEventArgs
ObjectChangeEventHandler
ObjectChangeReason
ObjectManipulationEventArgs
ObjectManipulationEventHandler
ObjectsByKeyQuery
ObjectsManipulationEventArgs
ObjectsManipulationEventHandler
ObjectsQuery
ObjectStubsQuery
OptimisticLockingAttribute
OptimisticLockingBehavior
OptimisticLockingIgnoredAttribute
OptimisticLockingReadBehavior
OptimisticLockingReadBehaviorAttribute
OptimisticLockingReadMergeBehavior
PersistentAliasAttribute
PersistentAttribute
PersistentBase
PersistentCriteriaEvaluationBehavior
ResolveSessionEventArgs
ResolveSessionEventHandler
SchemaInitEventArgs
SchemaInitEventHandler
SerializableObjectLayer
SerializableObjectLayerClient
ServerExceptionThrownAction
ServerExceptionThrownEventArgs
ServerExceptionThrownEventHandler
ServerViewPropertiesCollection
ServerViewProperty
Session
Members
Constructors
Fields
Properties
Methods
BeginNestedUnitOfWork()
BeginTrackingChanges()
BeginTransaction()
BulkLoad
BulkLoadAsync
CancelAsyncRequest(Object)
ClearDatabase()
CollectReferencingObjects
CommitTransaction()
CommitTransactionAsync
Connect
CreateObjectTypeRecords
CreateObjectTypeRecordsAsync
Delete
DeleteAsync
Disconnect()
DropCache()
DropChanges()
DropIdentityMap()
Evaluate
Evaluate(Type, CriteriaOperator, CriteriaOperator)
Evaluate(XPClassInfo, CriteriaOperator, CriteriaOperator)
Evaluate<ClassType>(CriteriaOperator, CriteriaOperator)
EvaluateAsync
EvaluateInTransaction
EvaluateInTransactionAsync
ExecuteNonQuery
ExecuteNonQueryAsync
ExecuteQuery
ExecuteQueryAsync
ExecuteQueryWithMetadata
ExecuteQueryWithMetadataAsync
ExecuteScalar
ExecuteScalarAsync
ExecuteSproc(String, OperandValue[])
ExecuteSprocAsync(CancellationToken, String, OperandValue[])
ExecuteSprocParametrized(String, SprocParameter[])
ExecuteSprocParametrizedAsync(CancellationToken, String, SprocParameter[])
ExplicitBeginTransaction
ExplicitBeginTransactionAsync
ExplicitCommitTransaction()
ExplicitCommitTransactionAsync(CancellationToken)
ExplicitRollbackTransaction()
ExplicitRollbackTransactionAsync(CancellationToken)
FindObject
FindObjectAsync
FlushChanges()
FlushChangesAsync
GetCacheBehavior()
GetClassInfo
GetIdentityMapBehavior()
GetKeyValue(Object)
GetLoadedObjectByKey
GetObjectByKey
GetObjectByKeyAsync
GetObjects
GetObjectsAsync
GetObjectsByKey
GetObjectsByKeyAsync
GetObjectsByKeyFromQuery(XPClassInfo, Boolean, String)
GetObjectsByKeyFromSproc(XPClassInfo, Boolean, String, OperandValue[])
GetObjectsByKeyFromSprocParametrized(XPClassInfo, Boolean, String, SprocParameter[])
GetObjectsFromQuery
GetObjectsFromQueryAsync
GetObjectsFromSproc
GetObjectsFromSprocAsync
GetObjectsFromSprocParametrized
GetObjectsFromSprocParametrizedAsync
GetObjectsInTransaction
GetObjectsInTransactionAsync
GetObjectsToDelete
GetObjectsToSave
GetObjectType
GetProperties(XPClassInfo)
IsNewObject
IsObjectMarkedDeleted(Object)
IsObjectToDelete
IsObjectToSave
Load
PreFetch
PreFetchAsync
ProcessReferences(Object, ProcessReferenceHandler)
PurgeDeletedObjects
Reload
ReloadAsync
RemoveFromDeleteList(Object)
RemoveFromLists(Object)
RemoveFromSaveList(Object)
RollbackTransaction()
Save
SaveAsync(Object, CancellationToken)
SelectData
SelectDataAsync
SelectDataInTransaction(XPClassInfo, CriteriaOperatorCollection, CriteriaOperator, CriteriaOperatorCollection, CriteriaOperator, Boolean, Int32, Int32, SortingCollection)
SelectDataInTransactionAsync(XPClassInfo, CriteriaOperatorCollection, CriteriaOperator, CriteriaOperatorCollection, CriteriaOperator, Boolean, Int32, Int32, SortingCollection, CancellationToken)
SetAsyncRequestPriority(Object, AsyncRequestPriority)
SetKeyValue(Object, Object)
ToString()
TriggerObjectChanged(Object, ObjectChangeEventArgs)
UpdateSchema
UpdateSchemaAsync
WaitForAsyncRequestComplete(Session, Object)
Events
SessionManipulationEventArgs
SessionManipulationEventHandler
SessionObjectLayer
SessionOperationFailEventArgs
SessionOperationFailEventHandler
SimpleDataLayer
SimpleObjectLayer
SizeAttribute
SkipCheckForFeedsAttribute
SortDirection
SortingCollection
StreamAttribute
ThreadSafeDataLayer
UnitOfWork
ValueConverterAttribute
ViewPropertiesCollection
ViewProperty
ViewRecord
VisibleAttribute
XPBaseCollection
XPBaseObject
XPBindingSource
XPClassInfoStub
XPCollection
XPCollection<T>
XPCollectionChangedEventArgs
XPCollectionChangedEventHandler
XPCollectionChangedType
XPCursor
XPCustomObject
XPDataObject
XPDataView
XPDelayedProperty
XPDictionaryStub
XPInstantFeedbackSource
XPInstantFeedbackView
XPLiteObject
XPObject
XPObjectSource
XPObjectSourcePropertiesCollection
XPObjectSourceProperty
XPObjectSourceRecord
XPObjectStub
XPObjectStubCollection
XPObjectType
XpoDataSource
XpoDataSourceInsertedEventArgs
XpoDataSourceInsertedEventHandler
XpoDefault
XPPageSelector
XPQuery<T>
XPQueryBase
XPQueryExtensions
XPServerCollectionSource
XPServerModeView
XPView
XPWeakReference
DevExpress.Xpo.DB
DevExpress.Xpo.DB.Helpers
DevExpress.Xpo.Exceptions
DevExpress.Xpo.Helpers
DevExpress.Xpo.Metadata
Download CHM

Session.Evaluate Method

Name Parameters Description
Evaluate(XPClassInfo, CriteriaOperator, CriteriaOperator) classInfo, expression, criteria Evaluates the specified expression for objects of the specified type.
Evaluate(Type, CriteriaOperator, CriteriaOperator) objectType, expression, criteria Evaluates the specified expression for objects of the specified type.
Evaluate<ClassType>(CriteriaOperator, CriteriaOperator) expression, criteria Evaluates the specified expression for objects of the type designated by the specified generic type parameter.