Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / xsp / System / Web / UI / WebControls / CustomValidator.cs / 1 / CustomValidator.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System.ComponentModel; using System.Web; using System.Security.Permissions; using System.Web.Util; ////// [ DefaultEvent("ServerValidate"), ToolboxData("<{0}:CustomValidator runat=\"server\" ErrorMessage=\"CustomValidator\">{0}:CustomValidator>") ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class CustomValidator : BaseValidator { private static readonly object EventServerValidate= new object(); ///Allows custom code to perform /// validation on the client and/or server. ////// [ WebCategory("Behavior"), Themeable(false), DefaultValue(""), WebSysDescription(SR.CustomValidator_ClientValidationFunction) ] public string ClientValidationFunction { get { object o = ViewState["ClientValidationFunction"]; return((o == null) ? String.Empty : (string)o); } set { ViewState["ClientValidationFunction"] = value; } } [ WebCategory("Behavior"), Themeable(false), DefaultValue(false), WebSysDescription(SR.CustomValidator_ValidateEmptyText), ] public bool ValidateEmptyText { get { object o = ViewState["ValidateEmptyText"]; return((o == null) ? false : (bool)o); } set { ViewState["ValidateEmptyText"] = value; } } ///Gets and sets the custom client Javascript function used /// for validation. ////// [ WebSysDescription(SR.CustomValidator_ServerValidate) ] public event ServerValidateEventHandler ServerValidate { add { Events.AddHandler(EventServerValidate, value); } remove { Events.RemoveHandler(EventServerValidate, value); } } ///Represents the method that will handle the /// ///event of a /// . /// /// protected override void AddAttributesToRender(HtmlTextWriter writer) { base.AddAttributesToRender(writer); if (RenderUplevel) { string id = ClientID; HtmlTextWriter expandoAttributeWriter = (EnableLegacyRendering) ? writer : null; AddExpandoAttribute(expandoAttributeWriter, id, "evaluationfunction", "CustomValidatorEvaluateIsValid", false); if (ClientValidationFunction.Length > 0) { AddExpandoAttribute(expandoAttributeWriter, id, "clientvalidationfunction", ClientValidationFunction); if (ValidateEmptyText) { AddExpandoAttribute(expandoAttributeWriter, id, "validateemptytext", "true", false); } } } } ///Adds the properties of the ///control to the /// output stream for rendering on the client. /// /// protected override bool ControlPropertiesValid() { // Need to override the BaseValidator implementation, because for CustomValidator, it is fine // for the ControlToValidate to be blank. string controlToValidate = ControlToValidate; if (controlToValidate.Length > 0) { // Check that the property points to a valid control. Will throw and exception if not found CheckControlValidationProperty(controlToValidate, "ControlToValidate"); } return true; } ///Checks the properties of the control for valid values. ////// /// EvaluateIsValid method /// protected override bool EvaluateIsValid() { // If no control is specified, we always fire the event. If they have specified a control, we // only fire the event if the input is non-blank. string controlValue = String.Empty; string controlToValidate = ControlToValidate; if (controlToValidate.Length > 0) { controlValue = GetControlValidationValue(controlToValidate); Debug.Assert(controlValue != null, "Should have been caught be property check"); // If the text is empty, we return true. Whitespace is ignored for coordination wiht // RequiredFieldValidator. if ((controlValue == null || controlValue.Trim().Length == 0) && !ValidateEmptyText) { return true; } } return OnServerValidate(controlValue); } ////// protected virtual bool OnServerValidate(string value) { ServerValidateEventHandler handler = (ServerValidateEventHandler)Events[EventServerValidate]; ServerValidateEventArgs args = new ServerValidateEventArgs(value, true); if (handler != null) { handler(this, args); return args.IsValid; } else { return true; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.Raises the /// ///event for the .
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SQLBinary.cs
- XmlValidatingReader.cs
- LineServicesCallbacks.cs
- FilterEventArgs.cs
- XmlReader.cs
- XsdDuration.cs
- DataGridItemCollection.cs
- WizardSideBarListControlItemEventArgs.cs
- MulticastNotSupportedException.cs
- VideoDrawing.cs
- SettingsBase.cs
- XmlWriter.cs
- AsyncSerializedWorker.cs
- ZipPackagePart.cs
- SecurityElement.cs
- TrackingCondition.cs
- LinearQuaternionKeyFrame.cs
- Queue.cs
- Package.cs
- EventLogPropertySelector.cs
- ObjectViewQueryResultData.cs
- AuthorizationRuleCollection.cs
- Setter.cs
- XPathNavigator.cs
- FontSource.cs
- WebPartConnectionCollection.cs
- XPathSelectionIterator.cs
- JournalNavigationScope.cs
- CodeDomSerializationProvider.cs
- BulletDecorator.cs
- SystemColorTracker.cs
- smtpconnection.cs
- ConfigurationException.cs
- AttachedAnnotationChangedEventArgs.cs
- XmlIncludeAttribute.cs
- SineEase.cs
- TagPrefixCollection.cs
- Ipv6Element.cs
- MappedMetaModel.cs
- CompositeFontParser.cs
- NonSerializedAttribute.cs
- EntityType.cs
- NativeRecognizer.cs
- DoubleConverter.cs
- XamlSerializerUtil.cs
- Vector3dCollection.cs
- DiscoveryDocumentSerializer.cs
- MulticastOption.cs
- CodeLabeledStatement.cs
- PostBackTrigger.cs
- XPathArrayIterator.cs
- Inflater.cs
- DataRowChangeEvent.cs
- BitmapFrameEncode.cs
- DataSvcMapFileSerializer.cs
- DataTableReaderListener.cs
- Timeline.cs
- _NtlmClient.cs
- LinqDataSourceHelper.cs
- ClientRuntimeConfig.cs
- Metadata.cs
- ArgumentDirectionHelper.cs
- DataBoundControl.cs
- PrivacyNoticeElement.cs
- SocketPermission.cs
- QilValidationVisitor.cs
- EmissiveMaterial.cs
- SQLBytes.cs
- ConfigXmlCDataSection.cs
- SessionChannels.cs
- XPathDescendantIterator.cs
- UnauthorizedAccessException.cs
- BulletChrome.cs
- AccessibleObject.cs
- Registry.cs
- AuthorizationContext.cs
- WindowHideOrCloseTracker.cs
- CompiledRegexRunner.cs
- DBConcurrencyException.cs
- HybridDictionary.cs
- WebReferencesBuildProvider.cs
- XhtmlConformanceSection.cs
- IgnoreSectionHandler.cs
- Crc32.cs
- Partitioner.cs
- EventSinkActivity.cs
- NegotiationTokenAuthenticatorState.cs
- Convert.cs
- TypefaceCollection.cs
- BooleanExpr.cs
- Substitution.cs
- DefaultShape.cs
- SmiRecordBuffer.cs
- CodeDomConfigurationHandler.cs
- DictionaryItemsCollection.cs
- RequestQueryProcessor.cs
- PackWebRequest.cs
- CellIdBoolean.cs
- HttpCapabilitiesBase.cs
- WebResponse.cs