Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / System / Windows / Controls / GroupItem.cs / 1 / GroupItem.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: GroupItem object - root of the UI subtree generated for a CollectionViewGroup // // Specs: [....]/connecteddata/M5%20General%20Docs/Data%20Styling.mht // //--------------------------------------------------------------------------- using System; using System.Collections; namespace System.Windows.Controls { ////// A GroupItem appears as the root of the visual subtree generated for a CollectionViewGroup. /// public class GroupItem : ContentControl { static GroupItem() { DefaultStyleKeyProperty.OverrideMetadata(typeof(GroupItem), new FrameworkPropertyMetadata(typeof(GroupItem))); _dType = DependencyObjectType.FromSystemTypeInternal(typeof(GroupItem)); // GroupItems should not be focusable by default FocusableProperty.OverrideMetadata(typeof(GroupItem), new FrameworkPropertyMetadata(false)); } ////// Creates AutomationPeer ( protected override System.Windows.Automation.Peers.AutomationPeer OnCreateAutomationPeer() { return new System.Windows.Automation.Peers.GroupItemAutomationPeer(this); } ///) /// /// Gives a string representation of this object. /// ///internal override string GetPlainText() { System.Windows.Data.CollectionViewGroup cvg = Content as System.Windows.Data.CollectionViewGroup; if (cvg != null) { return cvg.Name.ToString(); } return base.GetPlainText(); } //----------------------------------------------------- // // Internal Properties // //----------------------------------------------------- internal ItemContainerGenerator Generator { get { return _generator; } set { _generator = value; } } //------------------------------------------------------ // // Internal Methods // //----------------------------------------------------- internal void PrepareItemContainer(object item) { ItemContainerGenerator generator = Generator.Parent; GroupStyle groupStyle = generator.GroupStyle; // apply the container style Style style = groupStyle.ContainerStyle; // no ContainerStyle set, try ContainerStyleSelector if (style == null) { if (groupStyle.ContainerStyleSelector != null) { style = groupStyle.ContainerStyleSelector.SelectStyle(item, this); } } // apply the style, if found if (style != null) { // verify style is appropriate before applying it if (!style.TargetType.IsInstanceOfType(this)) throw new InvalidOperationException(SR.Get(SRID.StyleForWrongType, style.TargetType.Name, this.GetType().Name)); this.Style = style; this.WriteInternalFlag2(InternalFlags2.IsStyleSetFromGenerator, true); } // forward the header template information if (!HasNonDefaultValue(ContentProperty)) this.Content = item; if (!HasNonDefaultValue(ContentTemplateProperty)) this.ContentTemplate = groupStyle.HeaderTemplate; if (!HasNonDefaultValue(ContentTemplateSelectorProperty)) this.ContentTemplateSelector = groupStyle.HeaderTemplateSelector; } internal void ClearContainerForItem(object item) { ItemContainerGenerator generator = Generator.Parent; GroupStyle groupStyle = generator.GroupStyle; if (Object.Equals(this.Content, item)) ClearValue(ContentProperty); if (this.ContentTemplate == groupStyle.HeaderTemplate) ClearValue(ContentTemplateProperty); if (this.ContentTemplateSelector == groupStyle.HeaderTemplateSelector) ClearValue(ContentTemplateSelectorProperty); Generator.Release(); } //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ ItemContainerGenerator _generator; #region DTypeThemeStyleKey // Returns the DependencyObjectType for the registered ThemeStyleKey's default // value. Controls will override this method to return approriate types. internal override DependencyObjectType DTypeThemeStyleKey { get { return _dType; } } private static DependencyObjectType _dType; #endregion DTypeThemeStyleKey } } // 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
- FileVersionInfo.cs
- PropertiesTab.cs
- TrackingProfile.cs
- UnicastIPAddressInformationCollection.cs
- WMIInterop.cs
- CodeFieldReferenceExpression.cs
- OptimalBreakSession.cs
- Merger.cs
- ControlParameter.cs
- CmsUtils.cs
- ToolboxItemAttribute.cs
- CDSsyncETWBCLProvider.cs
- _HelperAsyncResults.cs
- OleStrCAMarshaler.cs
- MenuItem.cs
- QueryPageSettingsEventArgs.cs
- BitmapEffectDrawing.cs
- Screen.cs
- SupportingTokenParameters.cs
- TextCollapsingProperties.cs
- DocumentXPathNavigator.cs
- MembershipUser.cs
- ParallelTimeline.cs
- NotSupportedException.cs
- ComplusTypeValidator.cs
- CircleHotSpot.cs
- ServiceModelConfiguration.cs
- ObjectReferenceStack.cs
- ApplyTemplatesAction.cs
- ObjectStorage.cs
- CodeCommentStatement.cs
- XmlReturnReader.cs
- FlowchartDesigner.xaml.cs
- RawTextInputReport.cs
- SqlUdtInfo.cs
- xamlnodes.cs
- SignatureResourcePool.cs
- RtfToXamlReader.cs
- X509Extension.cs
- FormsAuthentication.cs
- UnsafeNativeMethods.cs
- AllMembershipCondition.cs
- ProgressBarBrushConverter.cs
- RepeaterItemCollection.cs
- SoapCodeExporter.cs
- XsltOutput.cs
- ReflectionPermission.cs
- SystemIPv6InterfaceProperties.cs
- BindingContext.cs
- VisualBasicSettingsHandler.cs
- Crypto.cs
- SamlSecurityToken.cs
- XmlSchemaDocumentation.cs
- XpsThumbnail.cs
- PersonalizableTypeEntry.cs
- PenCursorManager.cs
- StringBlob.cs
- IconBitmapDecoder.cs
- RemotingConfigParser.cs
- ColumnMapProcessor.cs
- SubpageParagraph.cs
- ContextQuery.cs
- StandardTransformFactory.cs
- UrlPath.cs
- SessionPageStateSection.cs
- WebSysDefaultValueAttribute.cs
- HMACSHA1.cs
- CustomErrorsSectionWrapper.cs
- SafeProcessHandle.cs
- CommandID.cs
- DropShadowBitmapEffect.cs
- Activity.cs
- LoadWorkflowByKeyAsyncResult.cs
- WorkflowServiceNamespace.cs
- PagedDataSource.cs
- InlinedLocationReference.cs
- PageWrapper.cs
- FontSource.cs
- EventEntry.cs
- ADRoleFactoryConfiguration.cs
- SynchronizationHandlesCodeDomSerializer.cs
- AddInControllerImpl.cs
- OleDbSchemaGuid.cs
- GeneratedContractType.cs
- HttpResponseInternalBase.cs
- DrawingCollection.cs
- EventArgs.cs
- X509Utils.cs
- CompressEmulationStream.cs
- ToolStripLabel.cs
- EncodingNLS.cs
- HttpCachePolicy.cs
- InheritedPropertyChangedEventArgs.cs
- ExchangeUtilities.cs
- SerializationStore.cs
- ConvertersCollection.cs
- BitmapEffectGroup.cs
- CodeStatementCollection.cs
- Rfc4050KeyFormatter.cs
- DocumentOrderComparer.cs