Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / HtmlControls / HtmlInputCheckBox.cs / 1305376 / HtmlInputCheckBox.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * HtmlInputCheckBox.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.Globalization; using System.Web; using System.Web.UI; using System.Security.Permissions; ////// [ DefaultEvent("ServerChange"), SupportsEventValidation, ] public class HtmlInputCheckBox : HtmlInputControl, IPostBackDataHandler { private static readonly object EventServerChange = new object(); /* * Creates an intrinsic Html INPUT type=checkbox control. */ ////// The ///class defines the methods, /// properties, and events for the HtmlInputCheckBox control. This class allows /// programmatic access to the HTML <input type= /// checkbox> /// element on the server. /// /// public HtmlInputCheckBox() : base("checkbox") { } /* * Checked property. */ ///Initializes a new instance of a ///class. /// [ WebCategory("Default"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), TypeConverter(typeof(MinimizableAttributeTypeConverter)) ] public bool Checked { get { string s = Attributes["checked"]; return((s != null) ? (s.Equals("checked")) : false); } set { if (value) Attributes["checked"] = "checked"; else Attributes["checked"] = null; } } /* * Adds an event handler for the OnServerChange event. * value: New handler to install for this event. */ ///Gets or sets a value indicating whether the checkbox is /// currently selected. ////// [ WebCategory("Action"), WebSysDescription(SR.Control_OnServerCheckChanged) ] public event EventHandler ServerChange { add { Events.AddHandler(EventServerChange, value); } remove { Events.RemoveHandler(EventServerChange, value); } } /* * This method is invoked just prior to rendering. */ ///Occurs when ////// /// protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); if (Page != null && !Disabled) { Page.RegisterRequiresPostBack(this); Page.RegisterEnabledControl(this); } // if no change handler, no need to save posted property unless // we are disabled if (Events[EventServerChange] == null && !Disabled) { ViewState.SetItemDirty("checked",false); } } /* * Method used to raise the OnServerChange event. */ ////// protected virtual void OnServerChange(EventArgs e) { // invoke delegates AFTER binding EventHandler handler = (EventHandler)Events[EventServerChange]; if (handler != null) handler(this, e); } /* * Method of IPostBackDataHandler interface to process posted data. * Checkbox determines the posted Checked state. */ ///[To be supplied.] ///bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) { return LoadPostData(postDataKey, postCollection); } /// protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) { string post = postCollection[postDataKey]; bool newValue = !String.IsNullOrEmpty(post); bool valueChanged = (newValue != Checked); Checked = newValue; if (newValue) { ValidateEvent(postDataKey); } return valueChanged; } protected override void RenderAttributes(HtmlTextWriter writer) { base.RenderAttributes(writer); if (Page != null) { Page.ClientScript.RegisterForEventValidation(RenderedNameAttribute); } } /* * Method of IPostBackDataHandler interface which is invoked whenever * posted data for a control has changed. RadioButton 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. // //----------------------------------------------------------------------------- /* * HtmlInputCheckBox.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.Globalization; using System.Web; using System.Web.UI; using System.Security.Permissions; ////// [ DefaultEvent("ServerChange"), SupportsEventValidation, ] public class HtmlInputCheckBox : HtmlInputControl, IPostBackDataHandler { private static readonly object EventServerChange = new object(); /* * Creates an intrinsic Html INPUT type=checkbox control. */ ////// The ///class defines the methods, /// properties, and events for the HtmlInputCheckBox control. This class allows /// programmatic access to the HTML <input type= /// checkbox> /// element on the server. /// /// public HtmlInputCheckBox() : base("checkbox") { } /* * Checked property. */ ///Initializes a new instance of a ///class. /// [ WebCategory("Default"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), TypeConverter(typeof(MinimizableAttributeTypeConverter)) ] public bool Checked { get { string s = Attributes["checked"]; return((s != null) ? (s.Equals("checked")) : false); } set { if (value) Attributes["checked"] = "checked"; else Attributes["checked"] = null; } } /* * Adds an event handler for the OnServerChange event. * value: New handler to install for this event. */ ///Gets or sets a value indicating whether the checkbox is /// currently selected. ////// [ WebCategory("Action"), WebSysDescription(SR.Control_OnServerCheckChanged) ] public event EventHandler ServerChange { add { Events.AddHandler(EventServerChange, value); } remove { Events.RemoveHandler(EventServerChange, value); } } /* * This method is invoked just prior to rendering. */ ///Occurs when ////// /// protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); if (Page != null && !Disabled) { Page.RegisterRequiresPostBack(this); Page.RegisterEnabledControl(this); } // if no change handler, no need to save posted property unless // we are disabled if (Events[EventServerChange] == null && !Disabled) { ViewState.SetItemDirty("checked",false); } } /* * Method used to raise the OnServerChange event. */ ////// protected virtual void OnServerChange(EventArgs e) { // invoke delegates AFTER binding EventHandler handler = (EventHandler)Events[EventServerChange]; if (handler != null) handler(this, e); } /* * Method of IPostBackDataHandler interface to process posted data. * Checkbox determines the posted Checked state. */ ///[To be supplied.] ///bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) { return LoadPostData(postDataKey, postCollection); } /// protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) { string post = postCollection[postDataKey]; bool newValue = !String.IsNullOrEmpty(post); bool valueChanged = (newValue != Checked); Checked = newValue; if (newValue) { ValidateEvent(postDataKey); } return valueChanged; } protected override void RenderAttributes(HtmlTextWriter writer) { base.RenderAttributes(writer); if (Page != null) { Page.ClientScript.RegisterForEventValidation(RenderedNameAttribute); } } /* * Method of IPostBackDataHandler interface which is invoked whenever * posted data for a control has changed. RadioButton 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
- DockPanel.cs
- WebSysDescriptionAttribute.cs
- DataGridItem.cs
- ForeignKeyConstraint.cs
- SystemWebSectionGroup.cs
- TreeView.cs
- BoolExpression.cs
- TempFiles.cs
- TemplateControlParser.cs
- MetadataCache.cs
- ModulesEntry.cs
- SizeConverter.cs
- X509IssuerSerialKeyIdentifierClause.cs
- XmlTextReaderImpl.cs
- Baml2006Reader.cs
- BamlResourceSerializer.cs
- NativeMethods.cs
- _NegoStream.cs
- HtmlInputRadioButton.cs
- Model3D.cs
- WebConfigurationHostFileChange.cs
- SelfIssuedSamlTokenFactory.cs
- DataBindingCollection.cs
- CopyAction.cs
- SafeNativeMethods.cs
- comcontractssection.cs
- EventLog.cs
- WorkflowDesigner.cs
- XamlPointCollectionSerializer.cs
- CodeEventReferenceExpression.cs
- TraceLog.cs
- TimeSpanSecondsConverter.cs
- SeverityFilter.cs
- DrawingAttributes.cs
- LinkGrep.cs
- XmlCharCheckingWriter.cs
- SystemInformation.cs
- XPathNavigatorReader.cs
- SchemaMapping.cs
- DataMisalignedException.cs
- GeneratedCodeAttribute.cs
- AttachedPropertyInfo.cs
- PrintControllerWithStatusDialog.cs
- ExpandableObjectConverter.cs
- ArrayList.cs
- FlowLayoutPanel.cs
- TransformationRules.cs
- Rules.cs
- ConfigurationSectionGroup.cs
- CodeStatement.cs
- ModuleElement.cs
- ServiceHttpHandlerFactory.cs
- XmlWrappingReader.cs
- ResourceExpressionBuilder.cs
- LogPolicy.cs
- MaterialGroup.cs
- Globals.cs
- SQLGuidStorage.cs
- AssemblyFilter.cs
- NameValueSectionHandler.cs
- ElementMarkupObject.cs
- BasicExpressionVisitor.cs
- ReadOnlyAttribute.cs
- PolicyException.cs
- QueryException.cs
- ModelPropertyDescriptor.cs
- TextDecorationLocationValidation.cs
- DataControlLinkButton.cs
- TemplateBindingExpression.cs
- DecoderReplacementFallback.cs
- DrawingGroupDrawingContext.cs
- HiddenFieldPageStatePersister.cs
- ExternalFile.cs
- ObfuscationAttribute.cs
- WebException.cs
- DefaultSection.cs
- OperationResponse.cs
- RuleCache.cs
- ZipIOZip64EndOfCentralDirectoryLocatorBlock.cs
- NativeMethods.cs
- COAUTHINFO.cs
- CapabilitiesRule.cs
- NetSectionGroup.cs
- IPEndPoint.cs
- DrawingImage.cs
- GeneralTransform.cs
- TextAutomationPeer.cs
- CqlWriter.cs
- ListViewVirtualItemsSelectionRangeChangedEvent.cs
- MetadataArtifactLoaderComposite.cs
- ButtonBaseAdapter.cs
- XmlFormatReaderGenerator.cs
- RawUIStateInputReport.cs
- MULTI_QI.cs
- XsltException.cs
- Int16Converter.cs
- EventListenerClientSide.cs
- NetSectionGroup.cs
- ReadOnlyActivityGlyph.cs
- SchemaAttDef.cs