Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / HtmlControls / HtmlTextArea.cs / 1305376 / HtmlTextArea.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * HtmlTextArea.cs * * Copyright (c) 2000 Microsoft Corporation */ namespace System.Web.UI.HtmlControls { using System.ComponentModel; using System; using System.Collections; using System.Collections.Specialized; using System.Web; using System.Web.UI; using System.Globalization; using System.Security.Permissions; ////// [ DefaultEvent("ServerChange"), SupportsEventValidation, ValidationProperty("Value") ] public class HtmlTextArea : HtmlContainerControl, IPostBackDataHandler { private static readonly object EventServerChange = new object(); /* * Creates an intrinsic Html TEXTAREA control. */ ///Defines the methods, properties, and events for the /// ////// class that /// allows programmatic access to the HTML <textarea>. /// Initializes a new instance of the public HtmlTextArea() : base("textarea") { } /* * The property for the number of columns to display. */ ///class. /// /// [ WebCategory("Appearance"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public int Cols { get { string s = Attributes["cols"]; return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1); } set { Attributes["cols"] = MapIntegerAttributeToString(value); } } /* * Name property. */ ///Indicates the display width (in characters) of the /// text area. ////// [ WebCategory("Behavior"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public virtual string Name { get { return UniqueID; //string s = Attributes["name"]; //return ((s != null) ? s : ""); } set { //Attributes["name"] = MapStringAttributeToString(value); } } // Value that gets rendered for the Name attribute internal string RenderedNameAttribute { get { return Name; //string name = Name; //if (name.Length == 0) // return UniqueID; //return name; } } /* * The property for the number of rows to display. */ ////// Gets the value of the HTML /// Name attribute that will be rendered to the browser. /// ////// [ WebCategory("Appearance"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public int Rows { get { string s = Attributes["rows"]; return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1); } set { Attributes["rows"] = MapIntegerAttributeToString(value); } } ///Gets or sets the display height (in rows) of the text area. ////// [ WebCategory("Appearance"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public string Value { get { return InnerText; } set { InnerText = value; } } ///Gets or sets the content of the text area. ////// [ WebCategory("Action"), WebSysDescription(SR.HtmlTextArea_OnServerChange) ] public event EventHandler ServerChange { add { Events.AddHandler(EventServerChange, value); } remove { Events.RemoveHandler(EventServerChange, value); } } ///Occurs when the content of the ///control is changed upon server /// postback. /// /// Overridden to only allow literal controls to be added as Text property. /// protected override void AddParsedSubObject(object obj) { if (obj is LiteralControl || obj is DataBoundLiteralControl) base.AddParsedSubObject(obj); else throw new HttpException(SR.GetString(SR.Cannot_Have_Children_Of_Type, "HtmlTextArea", obj.GetType().Name.ToString(CultureInfo.InvariantCulture))); } ////// /// protected override void RenderAttributes(HtmlTextWriter writer) { if (Page != null) { Page.ClientScript.RegisterForEventValidation(RenderedNameAttribute); } writer.WriteAttribute("name", RenderedNameAttribute); Attributes.Remove("name"); base.RenderAttributes(writer); } ////// protected virtual void OnServerChange(EventArgs e) { EventHandler handler = (EventHandler)Events[EventServerChange]; if (handler != null) handler(this, e); } ///Raised the ////// event. /// /// protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); if (!Disabled) { // if no change handler, no need to save posted property if (Events[EventServerChange] == null) { ViewState.SetItemDirty("value",false); } if (Page != null) { Page.RegisterEnabledControl(this); } } } /* * Method of IPostBackDataHandler interface to process posted data. * TextArea process a newly posted value. */ ////// /// bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) { return LoadPostData(postDataKey, postCollection); } protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) { string current = Value; string text = postCollection.GetValues(postDataKey)[0]; if (current == null || !current.Equals(text)) { ValidateEvent(postDataKey); Value = text; return true; } return false; } /* * Method of IPostBackDataHandler interface which is invoked whenever posted data * for a control has changed. TextArea fires an OnServerChange event. */ ////// /// void IPostBackDataHandler.RaisePostDataChangedEvent() { RaisePostDataChangedEvent(); } ////// /// protected virtual void RaisePostDataChangedEvent() { OnServerChange(EventArgs.Empty); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * HtmlTextArea.cs * * Copyright (c) 2000 Microsoft Corporation */ namespace System.Web.UI.HtmlControls { using System.ComponentModel; using System; using System.Collections; using System.Collections.Specialized; using System.Web; using System.Web.UI; using System.Globalization; using System.Security.Permissions; ////// [ DefaultEvent("ServerChange"), SupportsEventValidation, ValidationProperty("Value") ] public class HtmlTextArea : HtmlContainerControl, IPostBackDataHandler { private static readonly object EventServerChange = new object(); /* * Creates an intrinsic Html TEXTAREA control. */ ///Defines the methods, properties, and events for the /// ////// class that /// allows programmatic access to the HTML <textarea>. /// Initializes a new instance of the public HtmlTextArea() : base("textarea") { } /* * The property for the number of columns to display. */ ///class. /// /// [ WebCategory("Appearance"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public int Cols { get { string s = Attributes["cols"]; return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1); } set { Attributes["cols"] = MapIntegerAttributeToString(value); } } /* * Name property. */ ///Indicates the display width (in characters) of the /// text area. ////// [ WebCategory("Behavior"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public virtual string Name { get { return UniqueID; //string s = Attributes["name"]; //return ((s != null) ? s : ""); } set { //Attributes["name"] = MapStringAttributeToString(value); } } // Value that gets rendered for the Name attribute internal string RenderedNameAttribute { get { return Name; //string name = Name; //if (name.Length == 0) // return UniqueID; //return name; } } /* * The property for the number of rows to display. */ ////// Gets the value of the HTML /// Name attribute that will be rendered to the browser. /// ////// [ WebCategory("Appearance"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public int Rows { get { string s = Attributes["rows"]; return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1); } set { Attributes["rows"] = MapIntegerAttributeToString(value); } } ///Gets or sets the display height (in rows) of the text area. ////// [ WebCategory("Appearance"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public string Value { get { return InnerText; } set { InnerText = value; } } ///Gets or sets the content of the text area. ////// [ WebCategory("Action"), WebSysDescription(SR.HtmlTextArea_OnServerChange) ] public event EventHandler ServerChange { add { Events.AddHandler(EventServerChange, value); } remove { Events.RemoveHandler(EventServerChange, value); } } ///Occurs when the content of the ///control is changed upon server /// postback. /// /// Overridden to only allow literal controls to be added as Text property. /// protected override void AddParsedSubObject(object obj) { if (obj is LiteralControl || obj is DataBoundLiteralControl) base.AddParsedSubObject(obj); else throw new HttpException(SR.GetString(SR.Cannot_Have_Children_Of_Type, "HtmlTextArea", obj.GetType().Name.ToString(CultureInfo.InvariantCulture))); } ////// /// protected override void RenderAttributes(HtmlTextWriter writer) { if (Page != null) { Page.ClientScript.RegisterForEventValidation(RenderedNameAttribute); } writer.WriteAttribute("name", RenderedNameAttribute); Attributes.Remove("name"); base.RenderAttributes(writer); } ////// protected virtual void OnServerChange(EventArgs e) { EventHandler handler = (EventHandler)Events[EventServerChange]; if (handler != null) handler(this, e); } ///Raised the ////// event. /// /// protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); if (!Disabled) { // if no change handler, no need to save posted property if (Events[EventServerChange] == null) { ViewState.SetItemDirty("value",false); } if (Page != null) { Page.RegisterEnabledControl(this); } } } /* * Method of IPostBackDataHandler interface to process posted data. * TextArea process a newly posted value. */ ////// /// bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) { return LoadPostData(postDataKey, postCollection); } protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) { string current = Value; string text = postCollection.GetValues(postDataKey)[0]; if (current == null || !current.Equals(text)) { ValidateEvent(postDataKey); Value = text; return true; } return false; } /* * Method of IPostBackDataHandler interface which is invoked whenever posted data * for a control has changed. TextArea fires an OnServerChange event. */ ////// /// void IPostBackDataHandler.RaisePostDataChangedEvent() { RaisePostDataChangedEvent(); } ////// /// protected virtual void RaisePostDataChangedEvent() { OnServerChange(EventArgs.Empty); } } } // 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
- ActivityBuilder.cs
- QuaternionConverter.cs
- PropertyInformation.cs
- VisualTarget.cs
- TdsParameterSetter.cs
- BufferedWebEventProvider.cs
- SQLDecimal.cs
- CompositeKey.cs
- Types.cs
- MatrixTransform3D.cs
- XmlSchemaAttributeGroupRef.cs
- AttributeUsageAttribute.cs
- VerticalAlignConverter.cs
- GridView.cs
- SelectionChangedEventArgs.cs
- TypeBuilderInstantiation.cs
- XmlSerializationReader.cs
- ColumnMapProcessor.cs
- Assert.cs
- StandardBindingElementCollection.cs
- TextPenaltyModule.cs
- RuleSetCollection.cs
- EntityViewGenerator.cs
- PropertyRecord.cs
- JsonSerializer.cs
- TypeNameConverter.cs
- ValidationRuleCollection.cs
- CreateUserWizardAutoFormat.cs
- ServiceParser.cs
- SqlPersonalizationProvider.cs
- DoubleAnimationBase.cs
- HeaderedContentControl.cs
- StringUtil.cs
- NamespaceDecl.cs
- Substitution.cs
- TcpTransportSecurityElement.cs
- PropertyValueChangedEvent.cs
- Popup.cs
- CodeTypeMemberCollection.cs
- ArgumentNullException.cs
- SecurityDescriptor.cs
- InvalidWorkflowException.cs
- SchemaEntity.cs
- HttpListenerResponse.cs
- AccessViolationException.cs
- NetSectionGroup.cs
- ComPersistableTypeElementCollection.cs
- XPathSelectionIterator.cs
- MimePart.cs
- DateTimeConverter.cs
- ApplicationContext.cs
- EndOfStreamException.cs
- KeyValueSerializer.cs
- ListViewVirtualItemsSelectionRangeChangedEvent.cs
- SystemUdpStatistics.cs
- ReadContentAsBinaryHelper.cs
- DataGridViewColumnConverter.cs
- LazyTextWriterCreator.cs
- TreeNodeEventArgs.cs
- ReadOnlyObservableCollection.cs
- Parser.cs
- Touch.cs
- StateWorkerRequest.cs
- UseAttributeSetsAction.cs
- SmuggledIUnknown.cs
- ListViewTableCell.cs
- SchemaImporterExtension.cs
- COM2AboutBoxPropertyDescriptor.cs
- Int32KeyFrameCollection.cs
- InputGestureCollection.cs
- PeerObject.cs
- ImageListStreamer.cs
- _OverlappedAsyncResult.cs
- CheckedListBox.cs
- RbTree.cs
- RemotingConfiguration.cs
- XpsFilter.cs
- TypeListConverter.cs
- DefaultValueMapping.cs
- BasePropertyDescriptor.cs
- NonSerializedAttribute.cs
- VirtualizingStackPanel.cs
- IsolationInterop.cs
- RightsManagementPermission.cs
- Stylesheet.cs
- ActiveXMessageFormatter.cs
- CodeObjectCreateExpression.cs
- recordstatefactory.cs
- XmlElement.cs
- Viewport2DVisual3D.cs
- SmtpReplyReader.cs
- AppDomain.cs
- SessionPageStatePersister.cs
- ColorTranslator.cs
- ListViewGroupConverter.cs
- AsyncCompletedEventArgs.cs
- TextRange.cs
- TransferRequestHandler.cs
- OrderingInfo.cs
- IPHostEntry.cs