Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / WinForms / Managed / System / WinForms / RelatedPropertyManager.cs / 1 / RelatedPropertyManager.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using Microsoft.Win32; using System.Diagnostics; using System.Diagnostics.CodeAnalysis; using System.ComponentModel; using System.Collections; internal class RelatedPropertyManager : PropertyManager { BindingManagerBase parentManager; string dataField; PropertyDescriptor fieldInfo; [ SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors") // If the constructor does not set the dataSource // it would be a breaking change. ] internal RelatedPropertyManager(BindingManagerBase parentManager, string dataField) : base(GetCurrentOrNull(parentManager), dataField) { Bind(parentManager, dataField); } private void Bind(BindingManagerBase parentManager, string dataField) { Debug.Assert(parentManager != null, "How could this be a null parentManager."); this.parentManager = parentManager; this.dataField = dataField; this.fieldInfo = parentManager.GetItemProperties().Find(dataField, true); if (fieldInfo == null) throw new ArgumentException(SR.GetString(SR.RelatedListManagerChild, dataField)); // this.finalType = fieldInfo.PropertyType; parentManager.CurrentItemChanged += new EventHandler(ParentManager_CurrentItemChanged); Refresh(); } internal override string GetListName() { string name = GetListName(new ArrayList()); if (name.Length > 0) { return name; } return base.GetListName(); } protected internal override string GetListName(ArrayList listAccessors) { listAccessors.Insert(0, fieldInfo); return parentManager.GetListName(listAccessors); } internal override PropertyDescriptorCollection GetItemProperties(PropertyDescriptor[] listAccessors) { PropertyDescriptor[] accessors; if (listAccessors != null && listAccessors.Length > 0) { accessors = new PropertyDescriptor[listAccessors.Length + 1]; listAccessors.CopyTo(accessors, 1); } else { accessors = new PropertyDescriptor[1]; } // Set this accessor (add to the beginning) accessors[0] = this.fieldInfo; // Get props return parentManager.GetItemProperties(accessors); } private void ParentManager_CurrentItemChanged(object sender, EventArgs e) { Refresh(); } private void Refresh() { EndCurrentEdit(); SetDataSource(GetCurrentOrNull(parentManager)); OnCurrentChanged(EventArgs.Empty); } internal override Type BindType { get { return fieldInfo.PropertyType; } } public override object Current { get { return (this.DataSource != null) ? fieldInfo.GetValue(this.DataSource) : null; } } static private object GetCurrentOrNull(BindingManagerBase parentManager) { bool anyCurrent = (parentManager.Position >= 0 && parentManager.Position < parentManager.Count); return anyCurrent ? parentManager.Current : null; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ConfigXmlAttribute.cs
- SystemIPInterfaceStatistics.cs
- GatewayDefinition.cs
- BrushMappingModeValidation.cs
- ListItemParagraph.cs
- SiteMapHierarchicalDataSourceView.cs
- ResXResourceWriter.cs
- FacetEnabledSchemaElement.cs
- XmlSchemaCollection.cs
- HTMLTagNameToTypeMapper.cs
- selecteditemcollection.cs
- SafeEventLogWriteHandle.cs
- InteropTrackingRecord.cs
- __ComObject.cs
- Size.cs
- WebMessageFormatHelper.cs
- AuthenticationConfig.cs
- SingleObjectCollection.cs
- GridLengthConverter.cs
- ElementFactory.cs
- TargetInvocationException.cs
- MemberCollection.cs
- WebPartConnectionsCloseVerb.cs
- ComponentEvent.cs
- EntityParameterCollection.cs
- ObjectStateEntry.cs
- _DomainName.cs
- UpdateRecord.cs
- CommonGetThemePartSize.cs
- Missing.cs
- ApplicationSecurityInfo.cs
- EventManager.cs
- MonitoringDescriptionAttribute.cs
- PropertyChangeTracker.cs
- Wildcard.cs
- RequestNavigateEventArgs.cs
- XmlAttributeOverrides.cs
- GeneralTransform3DTo2D.cs
- DrawingBrush.cs
- PointAnimationBase.cs
- TaiwanLunisolarCalendar.cs
- BatchParser.cs
- SiteMapNodeItem.cs
- WizardStepBase.cs
- ServiceAuthorizationManager.cs
- TaiwanCalendar.cs
- ChangeDirector.cs
- ProfileModule.cs
- PingReply.cs
- NamedPipeAppDomainProtocolHandler.cs
- ByteAnimationBase.cs
- TemplateContentLoader.cs
- XmlSubtreeReader.cs
- ScriptResourceHandler.cs
- ResourceSetExpression.cs
- BlobPersonalizationState.cs
- MouseGestureConverter.cs
- UntypedNullExpression.cs
- Size.cs
- SQLDecimalStorage.cs
- TableHeaderCell.cs
- SchemaTypeEmitter.cs
- SafeLibraryHandle.cs
- ListItemCollection.cs
- LightweightCodeGenerator.cs
- DateTimeParse.cs
- Variable.cs
- WindowsSolidBrush.cs
- ToolStripMenuItemDesigner.cs
- CodeTypeDelegate.cs
- SqlSupersetValidator.cs
- MobileControlPersister.cs
- CodeExpressionStatement.cs
- GreenMethods.cs
- HorizontalAlignConverter.cs
- IndicCharClassifier.cs
- RegexMatchCollection.cs
- OverrideMode.cs
- HTTPNotFoundHandler.cs
- RawMouseInputReport.cs
- HotSpot.cs
- ClientBuildManager.cs
- Triangle.cs
- DataServiceQueryOfT.cs
- MenuBase.cs
- ExpressionBinding.cs
- ToolTipService.cs
- Triangle.cs
- UIAgentAsyncEndRequest.cs
- CompositeClientFormatter.cs
- PeerReferralPolicy.cs
- ArrayHelper.cs
- LicenseProviderAttribute.cs
- AddInDeploymentState.cs
- DetailsViewInsertEventArgs.cs
- GeometryDrawing.cs
- ThumbAutomationPeer.cs
- ViewEventArgs.cs
- ShellProvider.cs
- ErrorCodes.cs