Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / CustomValidator.cs / 1305376 / CustomValidator.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System.ComponentModel; using System.Web; using System.Web.Util; ////// [ DefaultEvent("ServerValidate"), ToolboxData("<{0}:CustomValidator runat=\"server\" ErrorMessage=\"CustomValidator\">{0}:CustomValidator>") ] 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. //------------------------------------------------------------------------------ //Raises the /// ///event for the . // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System.ComponentModel; using System.Web; using System.Web.Util; ////// [ DefaultEvent("ServerValidate"), ToolboxData("<{0}:CustomValidator runat=\"server\" ErrorMessage=\"CustomValidator\">{0}:CustomValidator>") ] 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.Raises the /// ///event for the .
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- HandlerBase.cs
- DataListItem.cs
- IntegerValidator.cs
- ACL.cs
- CqlLexer.cs
- WebPartDeleteVerb.cs
- IPEndPoint.cs
- IntPtr.cs
- PathHelper.cs
- HyperLinkStyle.cs
- ReturnValue.cs
- ImageAttributes.cs
- BitmapFrameEncode.cs
- MLangCodePageEncoding.cs
- ClickablePoint.cs
- CompilationSection.cs
- NullableConverter.cs
- ProfileSection.cs
- KeyTime.cs
- MemberNameValidator.cs
- Type.cs
- HtmlEmptyTagControlBuilder.cs
- ImageInfo.cs
- DataBinder.cs
- DbConnectionClosed.cs
- HtmlAnchor.cs
- SqlConnection.cs
- StringSorter.cs
- SiteMembershipCondition.cs
- TextParagraphCache.cs
- MSHTMLHost.cs
- UpdateTracker.cs
- ColumnWidthChangingEvent.cs
- StyleSheetComponentEditor.cs
- bidPrivateBase.cs
- URL.cs
- WSSecurityPolicy.cs
- PackageDigitalSignatureManager.cs
- ParagraphVisual.cs
- ExecutedRoutedEventArgs.cs
- UnsafeNativeMethodsCLR.cs
- SamlSecurityToken.cs
- TrustManagerMoreInformation.cs
- PageAsyncTask.cs
- ObjectToIdCache.cs
- BamlLocalizableResource.cs
- FormViewInsertEventArgs.cs
- DetailsViewPagerRow.cs
- IODescriptionAttribute.cs
- DbConnectionPoolGroup.cs
- SolidBrush.cs
- dataSvcMapFileLoader.cs
- DurationConverter.cs
- JavaScriptSerializer.cs
- Animatable.cs
- WithParamAction.cs
- InternalCompensate.cs
- SHA1CryptoServiceProvider.cs
- TreeNode.cs
- HebrewCalendar.cs
- SingleObjectCollection.cs
- XmlRawWriterWrapper.cs
- ButtonField.cs
- LinqDataSourceInsertEventArgs.cs
- KeyValueConfigurationElement.cs
- DataObjectAttribute.cs
- SchemaCollectionCompiler.cs
- InkCanvasAutomationPeer.cs
- CodeDOMUtility.cs
- Token.cs
- UnaryNode.cs
- MediaScriptCommandRoutedEventArgs.cs
- TextRangeProviderWrapper.cs
- WrapPanel.cs
- MetadataItemEmitter.cs
- Attributes.cs
- AttributeTableBuilder.cs
- TimeSpanMinutesOrInfiniteConverter.cs
- ToolStripDropDownItemDesigner.cs
- XmlWrappingReader.cs
- Style.cs
- ProgressPage.cs
- InvokeHandlers.cs
- AutoScrollExpandMessageFilter.cs
- SqlBuilder.cs
- CodeEntryPointMethod.cs
- WebHttpDispatchOperationSelectorData.cs
- MemberMemberBinding.cs
- documentation.cs
- PackageRelationship.cs
- ImageAutomationPeer.cs
- WebControlToolBoxItem.cs
- Crc32Helper.cs
- WebResourceAttribute.cs
- ResourcesBuildProvider.cs
- LabelAutomationPeer.cs
- DiagnosticSection.cs
- CapiNative.cs
- WorkingDirectoryEditor.cs
- SqlAggregateChecker.cs