Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / DEVDIV / depot / DevDiv / releases / 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 . // 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
- PathParser.cs
- Size.cs
- AssociationEndMember.cs
- SamlDoNotCacheCondition.cs
- EventTrigger.cs
- IndexedSelectQueryOperator.cs
- CallInfo.cs
- AppSettingsExpressionBuilder.cs
- RayHitTestParameters.cs
- WaitingCursor.cs
- WCFServiceClientProxyGenerator.cs
- WindowsStatic.cs
- MatrixTransform3D.cs
- HierarchicalDataBoundControlAdapter.cs
- TypeUsageBuilder.cs
- HttpConfigurationSystem.cs
- Boolean.cs
- ChtmlSelectionListAdapter.cs
- MultipartContentParser.cs
- PointCollectionValueSerializer.cs
- itemelement.cs
- figurelength.cs
- SortAction.cs
- DrawingContext.cs
- httpserverutility.cs
- BaseTemplateParser.cs
- RangeContentEnumerator.cs
- GACMembershipCondition.cs
- ScriptResourceInfo.cs
- MessageEventSubscriptionService.cs
- DropDownHolder.cs
- BinHexEncoder.cs
- ConstraintEnumerator.cs
- UniformGrid.cs
- mediaclock.cs
- MemberAssignment.cs
- FixedFindEngine.cs
- Tuple.cs
- XmlComment.cs
- RegularExpressionValidator.cs
- DataGridViewComboBoxEditingControl.cs
- StyleTypedPropertyAttribute.cs
- DeploymentSectionCache.cs
- ValidationSummaryDesigner.cs
- ProviderBase.cs
- BrowserInteropHelper.cs
- ItemContainerGenerator.cs
- CodeAttributeArgument.cs
- RegistryPermission.cs
- DataGridView.cs
- WebPartEditVerb.cs
- NativeCompoundFileAPIs.cs
- SafeNativeMethodsCLR.cs
- RecipientInfo.cs
- ToolZone.cs
- ConfigsHelper.cs
- DictionarySectionHandler.cs
- HtmlAnchor.cs
- DesignerVerb.cs
- DataControlField.cs
- MetaType.cs
- PeerResolverBindingElement.cs
- CheckedListBox.cs
- PageAsyncTask.cs
- DataGridViewCellStyle.cs
- CallbackValidator.cs
- TextTreeUndo.cs
- PolyQuadraticBezierSegmentFigureLogic.cs
- FormViewDeletedEventArgs.cs
- AutoResetEvent.cs
- TraceUtils.cs
- ZipArchive.cs
- ToolStripSystemRenderer.cs
- TimestampInformation.cs
- RelativeSource.cs
- WebPartZone.cs
- BitmapPalette.cs
- SrgsNameValueTag.cs
- UnaryExpression.cs
- ListenerElementsCollection.cs
- LabelExpression.cs
- Facet.cs
- XmlObjectSerializerWriteContextComplexJson.cs
- Parameter.cs
- SmtpNetworkElement.cs
- UrlPath.cs
- FormsAuthenticationUserCollection.cs
- ComUdtElement.cs
- OSEnvironmentHelper.cs
- LazyLoadBehavior.cs
- GenericAuthenticationEventArgs.cs
- DBNull.cs
- MenuAdapter.cs
- ActivityDesignerAccessibleObject.cs
- ZipIORawDataFileBlock.cs
- MenuItemCollectionEditor.cs
- DataSourceSelectArguments.cs
- EntityContainerAssociationSet.cs
- ToolStripItemRenderEventArgs.cs
- SyndicationElementExtension.cs