Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / RelatedPropertyManager.cs / 1305376 / 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.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Rotation3DKeyFrameCollection.cs
- CodeCatchClause.cs
- AnnotationHelper.cs
- OdbcEnvironmentHandle.cs
- ConfigLoader.cs
- Listbox.cs
- XmlUnspecifiedAttribute.cs
- XmlUnspecifiedAttribute.cs
- SEHException.cs
- ValueTable.cs
- Clock.cs
- ListDictionaryInternal.cs
- DataControlFieldCollection.cs
- NamespaceList.cs
- TextWriterTraceListener.cs
- LongValidator.cs
- EntityContainerAssociationSetEnd.cs
- OracleNumber.cs
- FlowNode.cs
- FormViewDesigner.cs
- SqlReorderer.cs
- CacheEntry.cs
- LOSFormatter.cs
- CapiHashAlgorithm.cs
- InfoCardSchemas.cs
- PersonalizationStateInfo.cs
- TextEditorThreadLocalStore.cs
- MappingMetadataHelper.cs
- Roles.cs
- Latin1Encoding.cs
- HwndSourceKeyboardInputSite.cs
- TabletDeviceInfo.cs
- CounterSampleCalculator.cs
- EditorPart.cs
- Symbol.cs
- DataPointer.cs
- CompilationPass2TaskInternal.cs
- InfiniteIntConverter.cs
- MultipleViewPatternIdentifiers.cs
- NavigationEventArgs.cs
- QualifiedCellIdBoolean.cs
- ListMarkerSourceInfo.cs
- Opcode.cs
- ProviderIncompatibleException.cs
- CodeVariableReferenceExpression.cs
- HttpRuntimeSection.cs
- codemethodreferenceexpression.cs
- NativeCompoundFileAPIs.cs
- OleDbFactory.cs
- PersonalizationState.cs
- ForwardPositionQuery.cs
- TreeViewItemAutomationPeer.cs
- CodePageEncoding.cs
- SAPICategories.cs
- ICspAsymmetricAlgorithm.cs
- GridItemProviderWrapper.cs
- PkcsMisc.cs
- DataError.cs
- MergablePropertyAttribute.cs
- FilterInvalidBodyAccessException.cs
- Scripts.cs
- ZipIOExtraField.cs
- DateTimeConverter2.cs
- EncodingDataItem.cs
- DatePickerTextBox.cs
- Typeface.cs
- ListControlActionList.cs
- MergeFilterQuery.cs
- StylusDevice.cs
- AbsoluteQuery.cs
- Point4D.cs
- SequenceRange.cs
- XmlDsigSep2000.cs
- DecimalKeyFrameCollection.cs
- HtmlEmptyTagControlBuilder.cs
- ScrollContentPresenter.cs
- WsdlInspector.cs
- GPPOINTF.cs
- FixedSOMGroup.cs
- NullExtension.cs
- PerformanceCounterCategory.cs
- FlowDecision.cs
- WorkflowPrinting.cs
- StorageMappingItemLoader.cs
- Matrix3DStack.cs
- CookieHandler.cs
- OracleCommand.cs
- ResourceReferenceExpression.cs
- BackStopAuthenticationModule.cs
- ObjectListDataBindEventArgs.cs
- AspNetCacheProfileAttribute.cs
- ConfigUtil.cs
- ColumnResizeUndoUnit.cs
- ImageBrush.cs
- RuntimeEnvironment.cs
- StylesEditorDialog.cs
- UnmanagedBitmapWrapper.cs
- ExtentCqlBlock.cs
- HostingEnvironment.cs
- VersionedStreamOwner.cs