Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / HtmlControls / HtmlControl.cs / 1 / HtmlControl.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * HtmlControl.cs * * Copyright (c) 2000 Microsoft Corporation */ namespace System.Web.UI.HtmlControls { using System; using System.Globalization; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design; using System.IO; using System.Web.Util; using System.Web.UI; using AttributeCollection = System.Web.UI.AttributeCollection; using System.Security.Permissions; /* * An abstract base class representing an intrinsic Html tag that * is not represented by both a begin and end tag, for example * INPUT or IMG. */ ////// [ Designer("System.Web.UI.Design.HtmlIntrinsicControlDesigner, " + AssemblyRef.SystemDesign), ToolboxItem(false) ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] abstract public class HtmlControl : Control, IAttributeAccessor { internal string _tagName; private AttributeCollection _attributes; ////// The ////// class defines the methods, properties, and events /// common to all HTML Server controls in the Web Forms page framework. /// /// protected HtmlControl() : this("span") { } ////// protected HtmlControl(string tag) { _tagName = tag; } /* * Access to collection of Attributes. */ ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), ] public AttributeCollection Attributes { get { if (_attributes == null) _attributes = new AttributeCollection(ViewState); return _attributes; } } /* * Access to collection of styles. */ ////// Gets all attribute name/value pairs expressed on a /// server control tag within a selected ASP.NET page. /// ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), ] public CssStyleCollection Style { get { return Attributes.CssStyle; } } /* * Property to get name of tag. */ ////// Gets all /// cascading style sheet (CSS) properties that /// are applied /// to a specified HTML Server control in an .aspx /// file. /// ////// [ WebCategory("Appearance"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public virtual string TagName { get { return _tagName;} } /* * Disabled property. */ ////// Gets the element name of a tag that contains a runat=server /// attribute/value pair. /// ////// [ WebCategory("Behavior"), DefaultValue(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), TypeConverter(typeof(MinimizableAttributeTypeConverter)) ] public bool Disabled { get { string s = Attributes["disabled"]; return((s != null) ? (s.Equals("disabled")) : false); } set { if (value) Attributes["disabled"] = "disabled"; else Attributes["disabled"] = null; } } ////// Gets or sets /// a value indicating whether Disabled attribute is included when a server /// control is rendered. /// ////// ///protected override bool ViewStateIgnoresCase { get { return true; } } /// /// protected override ControlCollection CreateControlCollection() { return new EmptyControlCollection(this); } /* * Render the control into the given writer. */ ///[To be supplied.] ////// /// protected internal override void Render(HtmlTextWriter writer) { RenderBeginTag(writer); } /* * Render only the attributes, attr1=value1 attr2=value2 ... */ ////// /// protected virtual void RenderAttributes(HtmlTextWriter writer) { if (ID != null) writer.WriteAttribute("id", ClientID); Attributes.Render(writer); } /* * Render the begin tag and its attributes, <TAGNAME attr1=value1 attr2=value2>. */ ////// /// protected virtual void RenderBeginTag(HtmlTextWriter writer) { writer.WriteBeginTag(TagName); RenderAttributes(writer); writer.Write(HtmlTextWriter.TagRightChar); } /* * HtmlControls support generic access to Attributes. */ ////// /// string IAttributeAccessor.GetAttribute(string name) { return GetAttribute(name); } ////// /// protected virtual string GetAttribute(string name) { return Attributes[name]; } /* * HtmlControls support generic access to Attributes. */ ////// /// void IAttributeAccessor.SetAttribute(string name, string value) { SetAttribute(name, value); } ////// /// protected virtual void SetAttribute(string name, string value) { Attributes[name] = value; } internal void PreProcessRelativeReferenceAttribute(HtmlTextWriter writer, string attribName) { string url = Attributes[attribName]; // Don't do anything if it's not specified if (String.IsNullOrEmpty(url)) return; try { url = ResolveClientUrl(url); } catch (Exception e) { throw new HttpException(SR.GetString(SR.Property_Had_Malformed_Url, attribName, e.Message)); } writer.WriteAttribute(attribName, url); Attributes.Remove(attribName); } internal static string MapStringAttributeToString(string s) { // If it's an empty string, change it to null if (s != null && s.Length == 0) return null; // Otherwise, just return the input return s; } internal static string MapIntegerAttributeToString(int n) { // If it's -1, change it to null if (n == -1) return null; // Otherwise, convert the integer to a string return n.ToString(NumberFormatInfo.InvariantInfo); } } }
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ToolStripGrip.cs
- RuleRef.cs
- OdbcConnectionPoolProviderInfo.cs
- UiaCoreApi.cs
- TargetInvocationException.cs
- SemanticValue.cs
- MissingManifestResourceException.cs
- NodeFunctions.cs
- FontDifferentiator.cs
- EntityClientCacheKey.cs
- RealizationDrawingContextWalker.cs
- PositiveTimeSpanValidator.cs
- Graph.cs
- storagemappingitemcollection.viewdictionary.cs
- ConfigurationElement.cs
- Timeline.cs
- Point3DConverter.cs
- ZoneLinkButton.cs
- autovalidator.cs
- TableLayoutPanel.cs
- OperatorExpressions.cs
- sqlinternaltransaction.cs
- Border.cs
- DoubleAnimationUsingKeyFrames.cs
- ProviderSettingsCollection.cs
- ElementHostPropertyMap.cs
- FileSystemEventArgs.cs
- DispatcherTimer.cs
- DataGridrowEditEndingEventArgs.cs
- EmptyReadOnlyDictionaryInternal.cs
- NamespaceList.cs
- SQLByteStorage.cs
- FatalException.cs
- SharedStatics.cs
- SpellCheck.cs
- StackOverflowException.cs
- EmissiveMaterial.cs
- SkewTransform.cs
- CodeGeneratorAttribute.cs
- PolicyImporterElement.cs
- XPathEmptyIterator.cs
- SignedPkcs7.cs
- Size.cs
- EncoderFallback.cs
- counter.cs
- FieldAccessException.cs
- MimeBasePart.cs
- AttributeEmitter.cs
- ObjectDataSourceView.cs
- StringWriter.cs
- CodeGenerator.cs
- UInt16.cs
- CfgParser.cs
- QueryCacheKey.cs
- ThreadExceptionDialog.cs
- DynamicRendererThreadManager.cs
- XmlElement.cs
- RadioButtonPopupAdapter.cs
- WeakReference.cs
- XmlnsDictionary.cs
- PriorityQueue.cs
- DataTablePropertyDescriptor.cs
- HijriCalendar.cs
- TypeUtils.cs
- RowsCopiedEventArgs.cs
- DBCommand.cs
- CollectionViewGroupRoot.cs
- PageParserFilter.cs
- SymbolType.cs
- KeyPullup.cs
- DataReceivedEventArgs.cs
- VoiceChangeEventArgs.cs
- MulticastIPAddressInformationCollection.cs
- DataGridViewCellStyleBuilderDialog.cs
- ProfilePropertySettings.cs
- OleStrCAMarshaler.cs
- CryptoApi.cs
- WebProxyScriptElement.cs
- SqlWebEventProvider.cs
- GcHandle.cs
- XslTransform.cs
- LongMinMaxAggregationOperator.cs
- EqualityComparer.cs
- FillRuleValidation.cs
- ConfigUtil.cs
- RadioButton.cs
- IsolatedStoragePermission.cs
- PackageRelationshipCollection.cs
- TypeUtils.cs
- XslAst.cs
- shaperfactoryquerycachekey.cs
- WindowsGrip.cs
- RadialGradientBrush.cs
- LabelAutomationPeer.cs
- XmlSerializationWriter.cs
- CodeActivityMetadata.cs
- StateItem.cs
- odbcmetadatafactory.cs
- Preprocessor.cs
- XmlAnyAttributeAttribute.cs