Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataWebControls / System / Data / WebControls / EntityDataSourceReferenceGroup.cs / 1599186 / EntityDataSourceReferenceGroup.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data.EntityClient; using System.Data.Metadata.Edm; using System.Diagnostics; using System.Globalization; using System.Reflection; using System.ComponentModel; using System.Data.Common; using System.Data.Objects.DataClasses; using System.Data.Objects; using System.Data; using System.Runtime.CompilerServices; namespace System.Web.UI.WebControls { ////// Groups together reference columns pointing at the same association end. /// internal abstract class EntityDataSourceReferenceGroup { private readonly AssociationSetEnd end; protected EntityDataSourceReferenceGroup(AssociationSetEnd end) { EntityDataSourceUtil.CheckArgumentNull(end, "end"); this.end = end; } internal AssociationSetEnd End { get { return this.end; } } [MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.NoOptimization)] internal static EntityDataSourceReferenceGroup Create(Type entityType, AssociationSetEnd end) { EntityDataSourceUtil.CheckArgumentNull(entityType, "entityType"); Type groupType = typeof(EntityDataSourceReferenceGroup<>).MakeGenericType(entityType); return (EntityDataSourceReferenceGroup)Activator.CreateInstance(groupType, new object[] { end }); } internal abstract void SetKeyValues(EntityDataSourceWrapper wrapper, DictionarynewKeyValues); internal abstract EntityKey GetEntityKey(EntityDataSourceWrapper entity); } internal class EntityDataSourceReferenceGroup : EntityDataSourceReferenceGroup where T : class { public EntityDataSourceReferenceGroup(AssociationSetEnd end) : base(end) { } internal override void SetKeyValues(EntityDataSourceWrapper wrapper, Dictionary newKeyValues) { EntityDataSourceUtil.CheckArgumentNull(wrapper, "wrapper"); EntityReference reference = GetRelatedReference(wrapper); EntityKey originalEntityKeys = reference.EntityKey; if (null != newKeyValues) { if(null != originalEntityKeys) { // mix the missing keys from the original values foreach (var originalEntityKey in originalEntityKeys.EntityKeyValues) { object newKeyValue; if (newKeyValues.TryGetValue(originalEntityKey.Key, out newKeyValue)) { // if any part of the key is null, the EntityKey is null if (null == newKeyValue) { newKeyValues = null; break; } } else { // add the original value for this partial key since it is not saved in the viewstate newKeyValues.Add(originalEntityKey.Key, originalEntityKey.Value); } } } else { // what we have in the newKeyValues should be sufficient to set the key // but if any value is null, the whole key is null foreach (var newKey in newKeyValues) { if (null == newKey.Value) { newKeyValues = null; break; } } } } if (null == newKeyValues) { // if the entity key is a compound key, and if any partial key is null, then the entitykey is null reference.EntityKey = null; } else { reference.EntityKey = new EntityKey(EntityDataSourceUtil.GetQualifiedEntitySetName(End.EntitySet), (IEnumerable >)newKeyValues); } } internal override EntityKey GetEntityKey(EntityDataSourceWrapper entity) { EntityKey key = GetRelatedReference(entity).EntityKey; return key; } private EntityReference GetRelatedReference(EntityDataSourceWrapper entity) { RelationshipManager relationshipManager = entity.RelationshipManager; Debug.Assert(relationshipManager != null, "couldn't get a relationship manager"); EntityReference reference = relationshipManager.GetRelatedReference ( this.End.ParentAssociationSet.ElementType.FullName, this.End.CorrespondingAssociationEndMember.Name); return reference; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data.EntityClient; using System.Data.Metadata.Edm; using System.Diagnostics; using System.Globalization; using System.Reflection; using System.ComponentModel; using System.Data.Common; using System.Data.Objects.DataClasses; using System.Data.Objects; using System.Data; using System.Runtime.CompilerServices; namespace System.Web.UI.WebControls { ////// Groups together reference columns pointing at the same association end. /// internal abstract class EntityDataSourceReferenceGroup { private readonly AssociationSetEnd end; protected EntityDataSourceReferenceGroup(AssociationSetEnd end) { EntityDataSourceUtil.CheckArgumentNull(end, "end"); this.end = end; } internal AssociationSetEnd End { get { return this.end; } } [MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.NoOptimization)] internal static EntityDataSourceReferenceGroup Create(Type entityType, AssociationSetEnd end) { EntityDataSourceUtil.CheckArgumentNull(entityType, "entityType"); Type groupType = typeof(EntityDataSourceReferenceGroup<>).MakeGenericType(entityType); return (EntityDataSourceReferenceGroup)Activator.CreateInstance(groupType, new object[] { end }); } internal abstract void SetKeyValues(EntityDataSourceWrapper wrapper, DictionarynewKeyValues); internal abstract EntityKey GetEntityKey(EntityDataSourceWrapper entity); } internal class EntityDataSourceReferenceGroup : EntityDataSourceReferenceGroup where T : class { public EntityDataSourceReferenceGroup(AssociationSetEnd end) : base(end) { } internal override void SetKeyValues(EntityDataSourceWrapper wrapper, Dictionary newKeyValues) { EntityDataSourceUtil.CheckArgumentNull(wrapper, "wrapper"); EntityReference reference = GetRelatedReference(wrapper); EntityKey originalEntityKeys = reference.EntityKey; if (null != newKeyValues) { if(null != originalEntityKeys) { // mix the missing keys from the original values foreach (var originalEntityKey in originalEntityKeys.EntityKeyValues) { object newKeyValue; if (newKeyValues.TryGetValue(originalEntityKey.Key, out newKeyValue)) { // if any part of the key is null, the EntityKey is null if (null == newKeyValue) { newKeyValues = null; break; } } else { // add the original value for this partial key since it is not saved in the viewstate newKeyValues.Add(originalEntityKey.Key, originalEntityKey.Value); } } } else { // what we have in the newKeyValues should be sufficient to set the key // but if any value is null, the whole key is null foreach (var newKey in newKeyValues) { if (null == newKey.Value) { newKeyValues = null; break; } } } } if (null == newKeyValues) { // if the entity key is a compound key, and if any partial key is null, then the entitykey is null reference.EntityKey = null; } else { reference.EntityKey = new EntityKey(EntityDataSourceUtil.GetQualifiedEntitySetName(End.EntitySet), (IEnumerable >)newKeyValues); } } internal override EntityKey GetEntityKey(EntityDataSourceWrapper entity) { EntityKey key = GetRelatedReference(entity).EntityKey; return key; } private EntityReference GetRelatedReference(EntityDataSourceWrapper entity) { RelationshipManager relationshipManager = entity.RelationshipManager; Debug.Assert(relationshipManager != null, "couldn't get a relationship manager"); EntityReference reference = relationshipManager.GetRelatedReference ( this.End.ParentAssociationSet.ElementType.FullName, this.End.CorrespondingAssociationEndMember.Name); return reference; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Queue.cs
- DataGridTablesFactory.cs
- datacache.cs
- ActiveXSite.cs
- InstanceCollisionException.cs
- ListControl.cs
- ClientApiGenerator.cs
- NotifyIcon.cs
- MediaTimeline.cs
- MachineKeyConverter.cs
- SafeNativeMethods.cs
- Border.cs
- RuntimeArgument.cs
- Stacktrace.cs
- XhtmlBasicTextViewAdapter.cs
- WebPartDisplayModeCancelEventArgs.cs
- Calendar.cs
- X509ChainPolicy.cs
- XPathChildIterator.cs
- SQLInt32.cs
- DbConnectionFactory.cs
- ReflectionTypeLoadException.cs
- IPipelineRuntime.cs
- Mouse.cs
- CommaDelimitedStringAttributeCollectionConverter.cs
- VariantWrapper.cs
- GuidTagList.cs
- Base64Stream.cs
- HttpChannelHelper.cs
- UnsafeNativeMethodsMilCoreApi.cs
- ScriptingRoleServiceSection.cs
- ElementAction.cs
- AspCompat.cs
- CacheEntry.cs
- ColorAnimationUsingKeyFrames.cs
- TreeView.cs
- ListViewTableRow.cs
- InfoCardSymmetricCrypto.cs
- TableDetailsRow.cs
- AstNode.cs
- DataTableMappingCollection.cs
- AliasedSlot.cs
- CharacterMetrics.cs
- sqlcontext.cs
- DesignerSerializationManager.cs
- LinkButton.cs
- ParagraphVisual.cs
- SqlCrossApplyToCrossJoin.cs
- UInt64.cs
- InternalResources.cs
- SoapMessage.cs
- MemberAssignmentAnalysis.cs
- EncoderBestFitFallback.cs
- SecurityKeyIdentifier.cs
- AbstractExpressions.cs
- HostedHttpContext.cs
- StringFunctions.cs
- PolicyStatement.cs
- RectAnimationBase.cs
- Certificate.cs
- ParenthesizePropertyNameAttribute.cs
- Inflater.cs
- ScaleTransform.cs
- TableCellCollection.cs
- base64Transforms.cs
- Exceptions.cs
- ImagingCache.cs
- UnauthorizedAccessException.cs
- InternalConfigSettingsFactory.cs
- DbParameterHelper.cs
- DataGridViewLinkCell.cs
- CompositeActivityTypeDescriptorProvider.cs
- Int32EqualityComparer.cs
- SqlCaseSimplifier.cs
- documentsequencetextview.cs
- BrowserTree.cs
- InkPresenterAutomationPeer.cs
- HtmlShimManager.cs
- WebServicesSection.cs
- DesignerActionItemCollection.cs
- InOutArgument.cs
- StatusCommandUI.cs
- QilInvokeEarlyBound.cs
- ContentPosition.cs
- Selection.cs
- QilReplaceVisitor.cs
- XmlHelper.cs
- ObjectDataSourceMethodEditor.cs
- NativeMethods.cs
- CompoundFileReference.cs
- WindowsSidIdentity.cs
- ViewGenerator.cs
- StrokeNode.cs
- HtmlControlPersistable.cs
- securitycriticaldata.cs
- QilGeneratorEnv.cs
- CompositeControl.cs
- TransformedBitmap.cs
- WizardForm.cs
- StyleHelper.cs