Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / Label.cs / 1305376 / Label.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.ComponentModel; using System.Web; using System.Web.UI; using System.Web.Util; ////// public class LabelControlBuilder : ControlBuilder { ///Interacts with the parser to build a ///control. /// /// public override bool AllowWhitespaceLiterals() { return false; } } ///Specifies whether white space literals are allowed. ////// [ ControlBuilderAttribute(typeof(LabelControlBuilder)), ControlValueProperty("Text"), DataBindingHandler("System.Web.UI.Design.TextDataBindingHandler, " + AssemblyRef.SystemDesign), DefaultProperty("Text"), ParseChildren(false), Designer("System.Web.UI.Design.WebControls.LabelDesigner, " + AssemblyRef.SystemDesign), ToolboxData("<{0}:Label runat=\"server\" Text=\"Label\">{0}:Label>") ] public class Label : WebControl, ITextControl { private bool _textSetByAddParsedSubObject = false; ///Constructs a label for displaying text programmatcially on a /// page. ////// public Label() { } ///Initializes a new instance of the ///class and renders /// it as a SPAN tag. /// internal Label(HtmlTextWriterTag tag) : base(tag) { } ////// [ DefaultValue(""), IDReferenceProperty(), TypeConverter(typeof(AssociatedControlConverter)), WebCategory("Accessibility"), WebSysDescription(SR.Label_AssociatedControlID), Themeable(false) ] public virtual string AssociatedControlID { get { string s = (string)ViewState["AssociatedControlID"]; return (s == null) ? String.Empty : s; } set { ViewState["AssociatedControlID"] = value; } } internal bool AssociatedControlInControlTree { get { object o = ViewState["AssociatedControlNotInControlTree"]; return (o == null ? true : (bool)o); } set { ViewState["AssociatedControlNotInControlTree"] = value; } } public override bool SupportsDisabledAttribute { get { return RenderingCompatibility < VersionUtil.Framework40; } } internal override bool RequiresLegacyRendering { get { return true; } } protected override HtmlTextWriterTag TagKey { get { if (AssociatedControlID.Length != 0) { return HtmlTextWriterTag.Label; } return base.TagKey; } } ///[To be supplied.] ////// [ Localizable(true), Bindable(true), WebCategory("Appearance"), DefaultValue(""), WebSysDescription(SR.Label_Text), PersistenceMode(PersistenceMode.InnerDefaultProperty) ] public virtual string Text { get { object o = ViewState["Text"]; return((o == null) ? String.Empty : (string)o); } set { if (HasControls()) { Controls.Clear(); } ViewState["Text"] = value; } } protected override void AddAttributesToRender(HtmlTextWriter writer) { string associatedControlID = AssociatedControlID; if (associatedControlID.Length != 0) { if (AssociatedControlInControlTree) { Control wc = FindControl(associatedControlID); if (wc == null) { // Don't throw in the designer. if (!DesignMode) throw new HttpException(SR.GetString(SR.LabelForNotFound, associatedControlID, ID)); } else { writer.AddAttribute(HtmlTextWriterAttribute.For, wc.ClientID); } } else { writer.AddAttribute(HtmlTextWriterAttribute.For, associatedControlID); } } base.AddAttributesToRender(writer); } ///Gets or sets the text content of the ////// control. /// /// protected override void AddParsedSubObject(object obj) { if (HasControls()) { base.AddParsedSubObject(obj); } else { if (obj is LiteralControl) { if (_textSetByAddParsedSubObject) { Text += ((LiteralControl)obj).Text; } else { Text = ((LiteralControl)obj).Text; } _textSetByAddParsedSubObject = true; } else { string currentText = Text; if (currentText.Length != 0) { Text = String.Empty; base.AddParsedSubObject(new LiteralControl(currentText)); } base.AddParsedSubObject(obj); } } } ////// /// protected override void LoadViewState(object savedState) { if (savedState != null) { base.LoadViewState(savedState); string s = (string)ViewState["Text"]; // Dev10 703061 If Text is set, we want to clear out any child controls, but not dirty viewstate if (s != null && HasControls()) { Controls.Clear(); } } } ///Load previously saved state. /// Overridden to synchronize Text property with LiteralContent. ////// /// protected internal override void RenderContents(HtmlTextWriter writer) { if (HasRenderingData()) { base.RenderContents(writer); } else { writer.Write(Text); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.Renders the contents of the ///into the specified writer.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- HelloOperationCD1AsyncResult.cs
- WindowsScroll.cs
- ScriptResourceHandler.cs
- MailWebEventProvider.cs
- QueryConverter.cs
- AttachedPropertyMethodSelector.cs
- HostVisual.cs
- ProviderUtil.cs
- ObjectView.cs
- PageDeviceFont.cs
- DesignSurfaceManager.cs
- HeaderUtility.cs
- ToolStripItemClickedEventArgs.cs
- Blend.cs
- IndicShape.cs
- Int32.cs
- __Error.cs
- SqlProfileProvider.cs
- RawStylusSystemGestureInputReport.cs
- SHA384.cs
- ResourceExpressionEditor.cs
- ObjectAnimationBase.cs
- MultilineStringConverter.cs
- ToolStripPanelRow.cs
- PrintDialogDesigner.cs
- CodeAttachEventStatement.cs
- BuilderElements.cs
- FormsAuthenticationEventArgs.cs
- DesignerAttributeInfo.cs
- CapabilitiesState.cs
- XmlnsDictionary.cs
- FaultContext.cs
- ClientScriptManagerWrapper.cs
- ProtocolsConfiguration.cs
- ObjectNavigationPropertyMapping.cs
- TextTreeObjectNode.cs
- RewritingValidator.cs
- DoWorkEventArgs.cs
- DataGridViewCellToolTipTextNeededEventArgs.cs
- FixedDSBuilder.cs
- FixedElement.cs
- WindowsListViewGroup.cs
- EdgeProfileValidation.cs
- EditingCoordinator.cs
- Animatable.cs
- StatusBarAutomationPeer.cs
- HttpListenerElement.cs
- ManagementQuery.cs
- StreamHelper.cs
- SessionSwitchEventArgs.cs
- EventsTab.cs
- UpDownBase.cs
- DesignerTransactionCloseEvent.cs
- DefaultMergeHelper.cs
- DesignerView.Commands.cs
- TextRange.cs
- SourceFileBuildProvider.cs
- HuffCodec.cs
- WinEventQueueItem.cs
- KeyInstance.cs
- CurrentChangedEventManager.cs
- ItemCollection.cs
- DefaultProxySection.cs
- BinaryFormatterSinks.cs
- ReaderWriterLock.cs
- SizeFConverter.cs
- SignedPkcs7.cs
- sitestring.cs
- ControlEvent.cs
- StringResourceManager.cs
- ControlDesigner.cs
- BaseValidator.cs
- SymbolMethod.cs
- UrlPath.cs
- ReferenceEqualityComparer.cs
- StrongNameMembershipCondition.cs
- LoadMessageLogger.cs
- RTLAwareMessageBox.cs
- BindableAttribute.cs
- PKCS1MaskGenerationMethod.cs
- DesignerDeviceConfig.cs
- TriggerBase.cs
- _DigestClient.cs
- SqlInternalConnectionTds.cs
- Timeline.cs
- DSASignatureDeformatter.cs
- XmlParserContext.cs
- TextPattern.cs
- WebPartZone.cs
- _Win32.cs
- WindowsImpersonationContext.cs
- StyleSheetComponentEditor.cs
- ValidatedControlConverter.cs
- RowUpdatingEventArgs.cs
- StylusSystemGestureEventArgs.cs
- PreDigestedSignedInfo.cs
- SafeRightsManagementHandle.cs
- SchemaCollectionCompiler.cs
- Message.cs
- wmiprovider.cs