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Posted 10 Oct 2011
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A simple look at how to share the JSON API to Web and Desktop.
MVC_JSON
Common
bin
Debug
Common.dll
Common.pdb
obj
Debug
Common.dll
Common.pdb
DesignTimeResolveAssemblyReferencesInput.cache
TempPE
Properties
ConsoleApplication1
bin
Debug
Common.dll
Common.pdb
ConsoleApplication1.exe
ConsoleApplication1.pdb
ConsoleApplication1.vshost.exe
obj
x86
Debug
ConsoleApplication1.exe
ConsoleApplication1.pdb
DesignTimeResolveAssemblyReferencesInput.cache
ResolveAssemblyReference.cache
TempPE
Properties
MvcApplication1.suo
packages
HttpClient.0.5.0
lib
JsonValue.0.5.0
JsonValue.0.5.0.nupkg
lib
40
Microsoft.Json.dll
Microsoft.Server.Common.dll
RestfulWebSite
App_Data
bin
Common.dll
Common.pdb
Microsoft.Json.dll
Microsoft.Server.Common.dll
RestfulWebSite.dll
RestfulWebSite.pdb
Content
themes
base
images
ui-bg_flat_0_aaaaaa_40x100.png
ui-bg_flat_75_ffffff_40x100.png
ui-bg_glass_55_fbf9ee_1x400.png
ui-bg_glass_65_ffffff_1x400.png
ui-bg_glass_75_dadada_1x400.png
ui-bg_glass_75_e6e6e6_1x400.png
ui-bg_glass_95_fef1ec_1x400.png
ui-bg_highlight-soft_75_cccccc_1x100.png
ui-icons_222222_256x240.png
ui-icons_2e83ff_256x240.png
ui-icons_454545_256x240.png
ui-icons_888888_256x240.png
ui-icons_cd0a0a_256x240.png
Controllers
Filter
ModelBinders
obj
Debug
DesignTimeResolveAssemblyReferencesInput.cache
ResolveAssemblyReference.cache
RestfulWebSite.dll
RestfulWebSite.pdb
TempPE
Properties
RestfulWebSite.csproj.user
Scripts
Views
Home
Shared
WEB_WCF
Lib
WCF Web API Preview 4
Microsoft.ApplicationServer.Common.dll
Microsoft.ApplicationServer.Common.XML
Microsoft.ApplicationServer.Http.dll
Microsoft.ApplicationServer.Http.XML
Microsoft.ApplicationServer.HttpEnhancements.dll
Microsoft.ApplicationServer.HttpEnhancements.Tests.dll
Microsoft.ApplicationServer.HttpEnhancements.XML
Microsoft.ApplicationServer.Serialization.dll
Microsoft.ApplicationServer.Serialization.XML
Microsoft.ApplicationServer.ServiceModel.dll
Microsoft.Net.Http.dll
Microsoft.QueryComposition.dll
Microsoft.Runtime.Serialization.Json.dll
Microsoft.ServiceModel.Web.jQuery.dll
Models
bin
Debug
Models.dll
Release
obj
Debug
Models.dll
TempPE
Properties
RestFul_Test
bin
Debug
Microsoft.ApplicationServer.Common.dll
Microsoft.ApplicationServer.Http.dll
Microsoft.ApplicationServer.Serialization.dll
Microsoft.ApplicationServer.ServiceModel.dll
Microsoft.Net.Http.dll
Microsoft.QueryComposition.dll
Microsoft.Runtime.Serialization.Json.dll
Microsoft.ServiceModel.Web.jQuery.dll
Models.dll
RestFul_Test.exe
RestFul_Test.vshost.exe
Release
obj
x86
Debug
RestFul_Test.exe
TempPE
Properties
RESTFul_WCF
App_Data
bin
EF_TEST.exe
Microsoft.ApplicationServer.Common.dll
Microsoft.ApplicationServer.Http.dll
Microsoft.ApplicationServer.HttpEnhancements.dll
Microsoft.ApplicationServer.Serialization.dll
Microsoft.ApplicationServer.ServiceModel.dll
Microsoft.Net.Http.dll
Microsoft.QueryComposition.dll
Microsoft.Runtime.Serialization.Json.dll
Microsoft.ServiceModel.Web.jQuery.dll
Models.dll
RESTFul_WCF.dll
obj
Debug
RESTFul_WCF.dll
TempPE
Properties
RESTFul_WCF.csproj.user
//!----------------------------------------------------------
//! Copyright (C) Microsoft Corporation. All rights reserved.
//!----------------------------------------------------------
//! MicrosoftMvcValidation.js


Type.registerNamespace('Sys.Mvc');

////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.Validation

Sys.Mvc.$create_Validation = function Sys_Mvc_Validation() { return {}; }


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.JsonValidationField

Sys.Mvc.$create_JsonValidationField = function Sys_Mvc_JsonValidationField() { return {}; }


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.JsonValidationOptions

Sys.Mvc.$create_JsonValidationOptions = function Sys_Mvc_JsonValidationOptions() { return {}; }


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.JsonValidationRule

Sys.Mvc.$create_JsonValidationRule = function Sys_Mvc_JsonValidationRule() { return {}; }


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.ValidationContext

Sys.Mvc.$create_ValidationContext = function Sys_Mvc_ValidationContext() { return {}; }


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.NumberValidator

Sys.Mvc.NumberValidator = function Sys_Mvc_NumberValidator() {
}
Sys.Mvc.NumberValidator.create = function Sys_Mvc_NumberValidator$create(rule) {
    /// <param name="rule" type="Sys.Mvc.JsonValidationRule">
    /// </param>
    /// <returns type="Sys.Mvc.Validator"></returns>
    return Function.createDelegate(new Sys.Mvc.NumberValidator(), new Sys.Mvc.NumberValidator().validate);
}
Sys.Mvc.NumberValidator.prototype = {
    
    validate: function Sys_Mvc_NumberValidator$validate(value, context) {
        /// <param name="value" type="String">
        /// </param>
        /// <param name="context" type="Sys.Mvc.ValidationContext">
        /// </param>
        /// <returns type="Object"></returns>
        if (Sys.Mvc._validationUtil.stringIsNullOrEmpty(value)) {
            return true;
        }
        var n = Number.parseLocale(value);
        return (!isNaN(n));
    }
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.FormContext

Sys.Mvc.FormContext = function Sys_Mvc_FormContext(formElement, validationSummaryElement) {
    /// <param name="formElement" type="Object" domElement="true">
    /// </param>
    /// <param name="validationSummaryElement" type="Object" domElement="true">
    /// </param>
    /// <field name="_validationSummaryErrorCss" type="String" static="true">
    /// </field>
    /// <field name="_validationSummaryValidCss" type="String" static="true">
    /// </field>
    /// <field name="_formValidationTag" type="String" static="true">
    /// </field>
    /// <field name="_onClickHandler" type="Sys.UI.DomEventHandler">
    /// </field>
    /// <field name="_onSubmitHandler" type="Sys.UI.DomEventHandler">
    /// </field>
    /// <field name="_errors" type="Array">
    /// </field>
    /// <field name="_submitButtonClicked" type="Object" domElement="true">
    /// </field>
    /// <field name="_validationSummaryElement" type="Object" domElement="true">
    /// </field>
    /// <field name="_validationSummaryULElement" type="Object" domElement="true">
    /// </field>
    /// <field name="fields" type="Array" elementType="FieldContext">
    /// </field>
    /// <field name="_formElement" type="Object" domElement="true">
    /// </field>
    /// <field name="replaceValidationSummary" type="Boolean">
    /// </field>
    this._errors = [];
    this.fields = new Array(0);
    this._formElement = formElement;
    this._validationSummaryElement = validationSummaryElement;
    formElement[Sys.Mvc.FormContext._formValidationTag] = this;
    if (validationSummaryElement) {
        var ulElements = validationSummaryElement.getElementsByTagName('ul');
        if (ulElements.length > 0) {
            this._validationSummaryULElement = ulElements[0];
        }
    }
    this._onClickHandler = Function.createDelegate(this, this._form_OnClick);
    this._onSubmitHandler = Function.createDelegate(this, this._form_OnSubmit);
}
Sys.Mvc.FormContext._Application_Load = function Sys_Mvc_FormContext$_Application_Load() {
    var allFormOptions = window.mvcClientValidationMetadata;
    if (allFormOptions) {
        while (allFormOptions.length > 0) {
            var thisFormOptions = allFormOptions.pop();
            Sys.Mvc.FormContext._parseJsonOptions(thisFormOptions);
        }
    }
}
Sys.Mvc.FormContext._getFormElementsWithName = function Sys_Mvc_FormContext$_getFormElementsWithName(formElement, name) {
    /// <param name="formElement" type="Object" domElement="true">
    /// </param>
    /// <param name="name" type="String">
    /// </param>
    /// <returns type="Array" elementType="Object" elementDomElement="true"></returns>
    var allElementsWithNameInForm = [];
    var allElementsWithName = document.getElementsByName(name);
    for (var i = 0; i < allElementsWithName.length; i++) {
        var thisElement = allElementsWithName[i];
        if (Sys.Mvc.FormContext._isElementInHierarchy(formElement, thisElement)) {
            Array.add(allElementsWithNameInForm, thisElement);
        }
    }
    return allElementsWithNameInForm;
}
Sys.Mvc.FormContext.getValidationForForm = function Sys_Mvc_FormContext$getValidationForForm(formElement) {
    /// <param name="formElement" type="Object" domElement="true">
    /// </param>
    /// <returns type="Sys.Mvc.FormContext"></returns>
    return formElement[Sys.Mvc.FormContext._formValidationTag];
}
Sys.Mvc.FormContext._isElementInHierarchy = function Sys_Mvc_FormContext$_isElementInHierarchy(parent, child) {
    /// <param name="parent" type="Object" domElement="true">
    /// </param>
    /// <param name="child" type="Object" domElement="true">
    /// </param>
    /// <returns type="Boolean"></returns>
    while (child) {
        if (parent === child) {
            return true;
        }
        child = child.parentNode;
    }
    return false;
}
Sys.Mvc.FormContext._parseJsonOptions = function Sys_Mvc_FormContext$_parseJsonOptions(options) {
    /// <param name="options" type="Sys.Mvc.JsonValidationOptions">
    /// </param>
    /// <returns type="Sys.Mvc.FormContext"></returns>
    var formElement = $get(options.FormId);
    var validationSummaryElement = (!Sys.Mvc._validationUtil.stringIsNullOrEmpty(options.ValidationSummaryId)) ? $get(options.ValidationSummaryId) : null;
    var formContext = new Sys.Mvc.FormContext(formElement, validationSummaryElement);
    formContext.enableDynamicValidation();
    formContext.replaceValidationSummary = options.ReplaceValidationSummary;
    for (var i = 0; i < options.Fields.length; i++) {
        var field = options.Fields[i];
        var fieldElements = Sys.Mvc.FormContext._getFormElementsWithName(formElement, field.FieldName);
        var validationMessageElement = (!Sys.Mvc._validationUtil.stringIsNullOrEmpty(field.ValidationMessageId)) ? $get(field.ValidationMessageId) : null;
        var fieldContext = new Sys.Mvc.FieldContext(formContext);
        Array.addRange(fieldContext.elements, fieldElements);
        fieldContext.validationMessageElement = validationMessageElement;
        fieldContext.replaceValidationMessageContents = field.ReplaceValidationMessageContents;
        for (var j = 0; j < field.ValidationRules.length; j++) {
            var rule = field.ValidationRules[j];
            var validator = Sys.Mvc.ValidatorRegistry.getValidator(rule);
            if (validator) {
                var validation = Sys.Mvc.$create_Validation();
                validation.fieldErrorMessage = rule.ErrorMessage;
                validation.validator = validator;
                Array.add(fieldContext.validations, validation);
            }
        }
        fieldContext.enableDynamicValidation();
        Array.add(formContext.fields, fieldContext);
    }
    var registeredValidatorCallbacks = formElement.validationCallbacks;
    if (!registeredValidatorCallbacks) {
        registeredValidatorCallbacks = [];
        formElement.validationCallbacks = registeredValidatorCallbacks;
    }
    registeredValidatorCallbacks.push(Function.createDelegate(null, function() {
        return Sys.Mvc._validationUtil.arrayIsNullOrEmpty(formContext.validate('submit'));
    }));
    return formContext;
}
Sys.Mvc.FormContext.prototype = {
    _onClickHandler: null,
    _onSubmitHandler: null,
    _submitButtonClicked: null,
    _validationSummaryElement: null,
    _validationSummaryULElement: null,
    _formElement: null,
    replaceValidationSummary: false,
    
    addError: function Sys_Mvc_FormContext$addError(message) {
        /// <param name="message" type="String">
        /// </param>
        this.addErrors([ message ]);
    },
    
    addErrors: function Sys_Mvc_FormContext$addErrors(messages) {
        /// <param name="messages" type="Array" elementType="String">
        /// </param>
        if (!Sys.Mvc._validationUtil.arrayIsNullOrEmpty(messages)) {
            Array.addRange(this._errors, messages);
            this._onErrorCountChanged();
        }
    },
    
    clearErrors: function Sys_Mvc_FormContext$clearErrors() {
        Array.clear(this._errors);
        this._onErrorCountChanged();
    },
    
    _displayError: function Sys_Mvc_FormContext$_displayError() {
        if (this._validationSummaryElement) {
            if (this._validationSummaryULElement) {
                Sys.Mvc._validationUtil.removeAllChildren(this._validationSummaryULElement);
                for (var i = 0; i < this._errors.length; i++) {
                    var liElement = document.createElement('li');
                    Sys.Mvc._validationUtil.setInnerText(liElement, this._errors[i]);
                    this._validationSummaryULElement.appendChild(liElement);
                }
            }
            Sys.UI.DomElement.removeCssClass(this._validationSummaryElement, Sys.Mvc.FormContext._validationSummaryValidCss);
            Sys.UI.DomElement.addCssClass(this._validationSummaryElement, Sys.Mvc.FormContext._validationSummaryErrorCss);
        }
    },
    
    _displaySuccess: function Sys_Mvc_FormContext$_displaySuccess() {
        var validationSummaryElement = this._validationSummaryElement;
        if (validationSummaryElement) {
            var validationSummaryULElement = this._validationSummaryULElement;
            if (validationSummaryULElement) {
                validationSummaryULElement.innerHTML = '';
            }
            Sys.UI.DomElement.removeCssClass(validationSummaryElement, Sys.Mvc.FormContext._validationSummaryErrorCss);
            Sys.UI.DomElement.addCssClass(validationSummaryElement, Sys.Mvc.FormContext._validationSummaryValidCss);
        }
    },
    
    enableDynamicValidation: function Sys_Mvc_FormContext$enableDynamicValidation() {
        Sys.UI.DomEvent.addHandler(this._formElement, 'click', this._onClickHandler);
        Sys.UI.DomEvent.addHandler(this._formElement, 'submit', this._onSubmitHandler);
    },
    
    _findSubmitButton: function Sys_Mvc_FormContext$_findSubmitButton(element) {
        /// <param name="element" type="Object" domElement="true">
        /// </param>
        /// <returns type="Object" domElement="true"></returns>
        if (element.disabled) {
            return null;
        }
        var tagName = element.tagName.toUpperCase();
        var inputElement = element;
        if (tagName === 'INPUT') {
            var type = inputElement.type;
            if (type === 'submit' || type === 'image') {
                return inputElement;
            }
        }
        else if ((tagName === 'BUTTON') && (inputElement.type === 'submit')) {
            return inputElement;
        }
        return null;
    },
    
    _form_OnClick: function Sys_Mvc_FormContext$_form_OnClick(e) {
        /// <param name="e" type="Sys.UI.DomEvent">
        /// </param>
        this._submitButtonClicked = this._findSubmitButton(e.target);
    },
    
    _form_OnSubmit: function Sys_Mvc_FormContext$_form_OnSubmit(e) {
        /// <param name="e" type="Sys.UI.DomEvent">
        /// </param>
        var form = e.target;
        var submitButton = this._submitButtonClicked;
        if (submitButton && submitButton.disableValidation) {
            return;
        }
        var errorMessages = this.validate('submit');
        if (!Sys.Mvc._validationUtil.arrayIsNullOrEmpty(errorMessages)) {
            e.preventDefault();
        }
    },
    
    _onErrorCountChanged: function Sys_Mvc_FormContext$_onErrorCountChanged() {
        if (!this._errors.length) {
            this._displaySuccess();
        }
        else {
            this._displayError();
        }
    },
    
    validate: function Sys_Mvc_FormContext$validate(eventName) {
        /// <param name="eventName" type="String">
        /// </param>
        /// <returns type="Array" elementType="String"></returns>
        var fields = this.fields;
        var errors = [];
        for (var i = 0; i < fields.length; i++) {
            var field = fields[i];
            if (!field.elements[0].disabled) {
                var thisErrors = field.validate(eventName);
                if (thisErrors) {
                    Array.addRange(errors, thisErrors);
                }
            }
        }
        if (this.replaceValidationSummary) {
            this.clearErrors();
            this.addErrors(errors);
        }
        return errors;
    }
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.FieldContext

Sys.Mvc.FieldContext = function Sys_Mvc_FieldContext(formContext) {
    /// <param name="formContext" type="Sys.Mvc.FormContext">
    /// </param>
    /// <field name="_hasTextChangedTag" type="String" static="true">
    /// </field>
    /// <field name="_hasValidationFiredTag" type="String" static="true">
    /// </field>
    /// <field name="_inputElementErrorCss" type="String" static="true">
    /// </field>
    /// <field name="_inputElementValidCss" type="String" static="true">
    /// </field>
    /// <field name="_validationMessageErrorCss" type="String" static="true">
    /// </field>
    /// <field name="_validationMessageValidCss" type="String" static="true">
    /// </field>
    /// <field name="_onBlurHandler" type="Sys.UI.DomEventHandler">
    /// </field>
    /// <field name="_onChangeHandler" type="Sys.UI.DomEventHandler">
    /// </field>
    /// <field name="_onInputHandler" type="Sys.UI.DomEventHandler">
    /// </field>
    /// <field name="_onPropertyChangeHandler" type="Sys.UI.DomEventHandler">
    /// </field>
    /// <field name="_errors" type="Array">
    /// </field>
    /// <field name="defaultErrorMessage" type="String">
    /// </field>
    /// <field name="elements" type="Array" elementType="Object" elementDomElement="true">
    /// </field>
    /// <field name="formContext" type="Sys.Mvc.FormContext">
    /// </field>
    /// <field name="replaceValidationMessageContents" type="Boolean">
    /// </field>
    /// <field name="validationMessageElement" type="Object" domElement="true">
    /// </field>
    /// <field name="validations" type="Array" elementType="Validation">
    /// </field>
    this._errors = [];
    this.elements = new Array(0);
    this.validations = new Array(0);
    this.formContext = formContext;
    this._onBlurHandler = Function.createDelegate(this, this._element_OnBlur);
    this._onChangeHandler = Function.createDelegate(this, this._element_OnChange);
    this._onInputHandler = Function.createDelegate(this, this._element_OnInput);
    this._onPropertyChangeHandler = Function.createDelegate(this, this._element_OnPropertyChange);
}
Sys.Mvc.FieldContext.prototype = {
    _onBlurHandler: null,
    _onChangeHandler: null,
    _onInputHandler: null,
    _onPropertyChangeHandler: null,
    defaultErrorMessage: null,
    formContext: null,
    replaceValidationMessageContents: false,
    validationMessageElement: null,
    
    addError: function Sys_Mvc_FieldContext$addError(message) {
        /// <param name="message" type="String">
        /// </param>
        this.addErrors([ message ]);
    },
    
    addErrors: function Sys_Mvc_FieldContext$addErrors(messages) {
        /// <param name="messages" type="Array" elementType="String">
        /// </param>
        if (!Sys.Mvc._validationUtil.arrayIsNullOrEmpty(messages)) {
            Array.addRange(this._errors, messages);
            this._onErrorCountChanged();
        }
    },
    
    clearErrors: function Sys_Mvc_FieldContext$clearErrors() {
        Array.clear(this._errors);
        this._onErrorCountChanged();
    },
    
    _displayError: function Sys_Mvc_FieldContext$_displayError() {
        var validationMessageElement = this.validationMessageElement;
        if (validationMessageElement) {
            if (this.replaceValidationMessageContents) {
                Sys.Mvc._validationUtil.setInnerText(validationMessageElement, this._errors[0]);
            }
            Sys.UI.DomElement.removeCssClass(validationMessageElement, Sys.Mvc.FieldContext._validationMessageValidCss);
            Sys.UI.DomElement.addCssClass(validationMessageElement, Sys.Mvc.FieldContext._validationMessageErrorCss);
        }
        var elements = this.elements;
        for (var i = 0; i < elements.length; i++) {
            var element = elements[i];
            Sys.UI.DomElement.removeCssClass(element, Sys.Mvc.FieldContext._inputElementValidCss);
            Sys.UI.DomElement.addCssClass(element, Sys.Mvc.FieldContext._inputElementErrorCss);
        }
    },
    
    _displaySuccess: function Sys_Mvc_FieldContext$_displaySuccess() {
        var validationMessageElement = this.validationMessageElement;
        if (validationMessageElement) {
            if (this.replaceValidationMessageContents) {
                Sys.Mvc._validationUtil.setInnerText(validationMessageElement, '');
            }
            Sys.UI.DomElement.removeCssClass(validationMessageElement, Sys.Mvc.FieldContext._validationMessageErrorCss);
            Sys.UI.DomElement.addCssClass(validationMessageElement, Sys.Mvc.FieldContext._validationMessageValidCss);
        }
        var elements = this.elements;
        for (var i = 0; i < elements.length; i++) {
            var element = elements[i];
            Sys.UI.DomElement.removeCssClass(element, Sys.Mvc.FieldContext._inputElementErrorCss);
            Sys.UI.DomElement.addCssClass(element, Sys.Mvc.FieldContext._inputElementValidCss);
        }
    },
    
    _element_OnBlur: function Sys_Mvc_FieldContext$_element_OnBlur(e) {
        /// <param name="e" type="Sys.UI.DomEvent">
        /// </param>
        if (e.target[Sys.Mvc.FieldContext._hasTextChangedTag] || e.target[Sys.Mvc.FieldContext._hasValidationFiredTag]) {
            this.validate('blur');
        }
    },
    
    _element_OnChange: function Sys_Mvc_FieldContext$_element_OnChange(e) {
        /// <param name="e" type="Sys.UI.DomEvent">
        /// </param>
        e.target[Sys.Mvc.FieldContext._hasTextChangedTag] = true;
    },
    
    _element_OnInput: function Sys_Mvc_FieldContext$_element_OnInput(e) {
        /// <param name="e" type="Sys.UI.DomEvent">
        /// </param>
        e.target[Sys.Mvc.FieldContext._hasTextChangedTag] = true;
        if (e.target[Sys.Mvc.FieldContext._hasValidationFiredTag]) {
            this.validate('input');
        }
    },
    
    _element_OnPropertyChange: function Sys_Mvc_FieldContext$_element_OnPropertyChange(e) {
        /// <param name="e" type="Sys.UI.DomEvent">
        /// </param>
        if (e.rawEvent.propertyName === 'value') {
            e.target[Sys.Mvc.FieldContext._hasTextChangedTag] = true;
            if (e.target[Sys.Mvc.FieldContext._hasValidationFiredTag]) {
                this.validate('input');
            }
        }
    },
    
    enableDynamicValidation: function Sys_Mvc_FieldContext$enableDynamicValidation() {
        var elements = this.elements;
        for (var i = 0; i < elements.length; i++) {
            var element = elements[i];
            if (Sys.Mvc._validationUtil.elementSupportsEvent(element, 'onpropertychange')) {
                var compatMode = document.documentMode;
                if (compatMode && compatMode >= 8) {
                    Sys.UI.DomEvent.addHandler(element, 'propertychange', this._onPropertyChangeHandler);
                }
            }
            else {
                Sys.UI.DomEvent.addHandler(element, 'input', this._onInputHandler);
            }
            Sys.UI.DomEvent.addHandler(element, 'change', this._onChangeHandler);
            Sys.UI.DomEvent.addHandler(element, 'blur', this._onBlurHandler);
        }
    },
    
    _getErrorString: function Sys_Mvc_FieldContext$_getErrorString(validatorReturnValue, fieldErrorMessage) {
        /// <param name="validatorReturnValue" type="Object">
        /// </param>
        /// <param name="fieldErrorMessage" type="String">
        /// </param>
        /// <returns type="String"></returns>
        var fallbackErrorMessage = fieldErrorMessage || this.defaultErrorMessage;
        if (Boolean.isInstanceOfType(validatorReturnValue)) {
            return (validatorReturnValue) ? null : fallbackErrorMessage;
        }
        if (String.isInstanceOfType(validatorReturnValue)) {
            return ((validatorReturnValue).length) ? validatorReturnValue : fallbackErrorMessage;
        }
        return null;
    },
    
    _getStringValue: function Sys_Mvc_FieldContext$_getStringValue() {
        /// <returns type="String"></returns>
        var elements = this.elements;
        return (elements.length > 0) ? elements[0].value : null;
    },
    
    _markValidationFired: function Sys_Mvc_FieldContext$_markValidationFired() {
        var elements = this.elements;
        for (var i = 0; i < elements.length; i++) {
            var element = elements[i];
            element[Sys.Mvc.FieldContext._hasValidationFiredTag] = true;
        }
    },
    
    _onErrorCountChanged: function Sys_Mvc_FieldContext$_onErrorCountChanged() {
        if (!this._errors.length) {
            this._displaySuccess();
        }
        else {
            this._displayError();
        }
    },
    
    validate: function Sys_Mvc_FieldContext$validate(eventName) {
        /// <param name="eventName" type="String">
        /// </param>
        /// <returns type="Array" elementType="String"></returns>
        var validations = this.validations;
        var errors = [];
        var value = this._getStringValue();
        for (var i = 0; i < validations.length; i++) {
            var validation = validations[i];
            var context = Sys.Mvc.$create_ValidationContext();
            context.eventName = eventName;
            context.fieldContext = this;
            context.validation = validation;
            var retVal = validation.validator(value, context);
            var errorMessage = this._getErrorString(retVal, validation.fieldErrorMessage);
            if (!Sys.Mvc._validationUtil.stringIsNullOrEmpty(errorMessage)) {
                Array.add(errors, errorMessage);
            }
        }
        this._markValidationFired();
        this.clearErrors();
        this.addErrors(errors);
        return errors;
    }
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.RangeValidator

Sys.Mvc.RangeValidator = function Sys_Mvc_RangeValidator(minimum, maximum) {
    /// <param name="minimum" type="Number">
    /// </param>
    /// <param name="maximum" type="Number">
    /// </param>
    /// <field name="_minimum" type="Number">
    /// </field>
    /// <field name="_maximum" type="Number">
    /// </field>
    this._minimum = minimum;
    this._maximum = maximum;
}
Sys.Mvc.RangeValidator.create = function Sys_Mvc_RangeValidator$create(rule) {
    /// <param name="rule" type="Sys.Mvc.JsonValidationRule">
    /// </param>
    /// <returns type="Sys.Mvc.Validator"></returns>
    var min = rule.ValidationParameters['min'];
    var max = rule.ValidationParameters['max'];
    return Function.createDelegate(new Sys.Mvc.RangeValidator(min, max), new Sys.Mvc.RangeValidator(min, max).validate);
}
Sys.Mvc.RangeValidator.prototype = {
    _minimum: null,
    _maximum: null,
    
    validate: function Sys_Mvc_RangeValidator$validate(value, context) {
        /// <param name="value" type="String">
        /// </param>
        /// <param name="context" type="Sys.Mvc.ValidationContext">
        /// </param>
        /// <returns type="Object"></returns>
        if (Sys.Mvc._validationUtil.stringIsNullOrEmpty(value)) {
            return true;
        }
        var n = Number.parseLocale(value);
        return (!isNaN(n) && this._minimum <= n && n <= this._maximum);
    }
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.RegularExpressionValidator

Sys.Mvc.RegularExpressionValidator = function Sys_Mvc_RegularExpressionValidator(pattern) {
    /// <param name="pattern" type="String">
    /// </param>
    /// <field name="_pattern" type="String">
    /// </field>
    this._pattern = pattern;
}
Sys.Mvc.RegularExpressionValidator.create = function Sys_Mvc_RegularExpressionValidator$create(rule) {
    /// <param name="rule" type="Sys.Mvc.JsonValidationRule">
    /// </param>
    /// <returns type="Sys.Mvc.Validator"></returns>
    var pattern = rule.ValidationParameters['pattern'];
    return Function.createDelegate(new Sys.Mvc.RegularExpressionValidator(pattern), new Sys.Mvc.RegularExpressionValidator(pattern).validate);
}
Sys.Mvc.RegularExpressionValidator.prototype = {
    _pattern: null,
    
    validate: function Sys_Mvc_RegularExpressionValidator$validate(value, context) {
        /// <param name="value" type="String">
        /// </param>
        /// <param name="context" type="Sys.Mvc.ValidationContext">
        /// </param>
        /// <returns type="Object"></returns>
        if (Sys.Mvc._validationUtil.stringIsNullOrEmpty(value)) {
            return true;
        }
        var regExp = new RegExp(this._pattern);
        var matches = regExp.exec(value);
        return (!Sys.Mvc._validationUtil.arrayIsNullOrEmpty(matches) && matches[0].length === value.length);
    }
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.RequiredValidator

Sys.Mvc.RequiredValidator = function Sys_Mvc_RequiredValidator() {
}
Sys.Mvc.RequiredValidator.create = function Sys_Mvc_RequiredValidator$create(rule) {
    /// <param name="rule" type="Sys.Mvc.JsonValidationRule">
    /// </param>
    /// <returns type="Sys.Mvc.Validator"></returns>
    return Function.createDelegate(new Sys.Mvc.RequiredValidator(), new Sys.Mvc.RequiredValidator().validate);
}
Sys.Mvc.RequiredValidator._isRadioInputElement = function Sys_Mvc_RequiredValidator$_isRadioInputElement(element) {
    /// <param name="element" type="Object" domElement="true">
    /// </param>
    /// <returns type="Boolean"></returns>
    if (element.tagName.toUpperCase() === 'INPUT') {
        var inputType = (element.type).toUpperCase();
        if (inputType === 'RADIO') {
            return true;
        }
    }
    return false;
}
Sys.Mvc.RequiredValidator._isSelectInputElement = function Sys_Mvc_RequiredValidator$_isSelectInputElement(element) {
    /// <param name="element" type="Object" domElement="true">
    /// </param>
    /// <returns type="Boolean"></returns>
    if (element.tagName.toUpperCase() === 'SELECT') {
        return true;
    }
    return false;
}
Sys.Mvc.RequiredValidator._isTextualInputElement = function Sys_Mvc_RequiredValidator$_isTextualInputElement(element) {
    /// <param name="element" type="Object" domElement="true">
    /// </param>
    /// <returns type="Boolean"></returns>
    if (element.tagName.toUpperCase() === 'INPUT') {
        var inputType = (element.type).toUpperCase();
        switch (inputType) {
            case 'TEXT':
            case 'PASSWORD':
            case 'FILE':
                return true;
        }
    }
    if (element.tagName.toUpperCase() === 'TEXTAREA') {
        return true;
    }
    return false;
}
Sys.Mvc.RequiredValidator._validateRadioInput = function Sys_Mvc_RequiredValidator$_validateRadioInput(elements) {
    /// <param name="elements" type="Array" elementType="Object" elementDomElement="true">
    /// </param>
    /// <returns type="Object"></returns>
    for (var i = 0; i < elements.length; i++) {
        var element = elements[i];
        if (element.checked) {
            return true;
        }
    }
    return false;
}
Sys.Mvc.RequiredValidator._validateSelectInput = function Sys_Mvc_RequiredValidator$_validateSelectInput(optionElements) {
    /// <param name="optionElements" type="DOMElementCollection">
    /// </param>
    /// <returns type="Object"></returns>
    for (var i = 0; i < optionElements.length; i++) {
        var element = optionElements[i];
        if (element.selected) {
            if (!Sys.Mvc._validationUtil.stringIsNullOrEmpty(element.value)) {
                return true;
            }
        }
    }
    return false;
}
Sys.Mvc.RequiredValidator._validateTextualInput = function Sys_Mvc_RequiredValidator$_validateTextualInput(element) {
    /// <param name="element" type="Object" domElement="true">
    /// </param>
    /// <returns type="Object"></returns>
    return (!Sys.Mvc._validationUtil.stringIsNullOrEmpty(element.value));
}
Sys.Mvc.RequiredValidator.prototype = {
    
    validate: function Sys_Mvc_RequiredValidator$validate(value, context) {
        /// <param name="value" type="String">
        /// </param>
        /// <param name="context" type="Sys.Mvc.ValidationContext">
        /// </param>
        /// <returns type="Object"></returns>
        var elements = context.fieldContext.elements;
        if (!elements.length) {
            return true;
        }
        var sampleElement = elements[0];
        if (Sys.Mvc.RequiredValidator._isTextualInputElement(sampleElement)) {
            return Sys.Mvc.RequiredValidator._validateTextualInput(sampleElement);
        }
        if (Sys.Mvc.RequiredValidator._isRadioInputElement(sampleElement)) {
            return Sys.Mvc.RequiredValidator._validateRadioInput(elements);
        }
        if (Sys.Mvc.RequiredValidator._isSelectInputElement(sampleElement)) {
            return Sys.Mvc.RequiredValidator._validateSelectInput((sampleElement).options);
        }
        return true;
    }
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.StringLengthValidator

Sys.Mvc.StringLengthValidator = function Sys_Mvc_StringLengthValidator(minLength, maxLength) {
    /// <param name="minLength" type="Number" integer="true">
    /// </param>
    /// <param name="maxLength" type="Number" integer="true">
    /// </param>
    /// <field name="_maxLength" type="Number" integer="true">
    /// </field>
    /// <field name="_minLength" type="Number" integer="true">
    /// </field>
    this._minLength = minLength;
    this._maxLength = maxLength;
}
Sys.Mvc.StringLengthValidator.create = function Sys_Mvc_StringLengthValidator$create(rule) {
    /// <param name="rule" type="Sys.Mvc.JsonValidationRule">
    /// </param>
    /// <returns type="Sys.Mvc.Validator"></returns>
    var minLength = (rule.ValidationParameters['min'] || 0);
    var maxLength = (rule.ValidationParameters['max'] || Number.MAX_VALUE);
    return Function.createDelegate(new Sys.Mvc.StringLengthValidator(minLength, maxLength), new Sys.Mvc.StringLengthValidator(minLength, maxLength).validate);
}
Sys.Mvc.StringLengthValidator.prototype = {
    _maxLength: 0,
    _minLength: 0,
    
    validate: function Sys_Mvc_StringLengthValidator$validate(value, context) {
        /// <param name="value" type="String">
        /// </param>
        /// <param name="context" type="Sys.Mvc.ValidationContext">
        /// </param>
        /// <returns type="Object"></returns>
        if (Sys.Mvc._validationUtil.stringIsNullOrEmpty(value)) {
            return true;
        }
        return (this._minLength <= value.length && value.length <= this._maxLength);
    }
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc._validationUtil

Sys.Mvc._validationUtil = function Sys_Mvc__validationUtil() {
}
Sys.Mvc._validationUtil.arrayIsNullOrEmpty = function Sys_Mvc__validationUtil$arrayIsNullOrEmpty(array) {
    /// <param name="array" type="Array" elementType="Object">
    /// </param>
    /// <returns type="Boolean"></returns>
    return (!array || !array.length);
}
Sys.Mvc._validationUtil.stringIsNullOrEmpty = function Sys_Mvc__validationUtil$stringIsNullOrEmpty(value) {
    /// <param name="value" type="String">
    /// </param>
    /// <returns type="Boolean"></returns>
    return (!value || !value.length);
}
Sys.Mvc._validationUtil.elementSupportsEvent = function Sys_Mvc__validationUtil$elementSupportsEvent(element, eventAttributeName) {
    /// <param name="element" type="Object" domElement="true">
    /// </param>
    /// <param name="eventAttributeName" type="String">
    /// </param>
    /// <returns type="Boolean"></returns>
    return (eventAttributeName in element);
}
Sys.Mvc._validationUtil.removeAllChildren = function Sys_Mvc__validationUtil$removeAllChildren(element) {
    /// <param name="element" type="Object" domElement="true">
    /// </param>
    while (element.firstChild) {
        element.removeChild(element.firstChild);
    }
}
Sys.Mvc._validationUtil.setInnerText = function Sys_Mvc__validationUtil$setInnerText(element, innerText) {
    /// <param name="element" type="Object" domElement="true">
    /// </param>
    /// <param name="innerText" type="String">
    /// </param>
    var textNode = document.createTextNode(innerText);
    Sys.Mvc._validationUtil.removeAllChildren(element);
    element.appendChild(textNode);
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.ValidatorRegistry

Sys.Mvc.ValidatorRegistry = function Sys_Mvc_ValidatorRegistry() {
    /// <field name="validators" type="Object" static="true">
    /// </field>
}
Sys.Mvc.ValidatorRegistry.getValidator = function Sys_Mvc_ValidatorRegistry$getValidator(rule) {
    /// <param name="rule" type="Sys.Mvc.JsonValidationRule">
    /// </param>
    /// <returns type="Sys.Mvc.Validator"></returns>
    var creator = Sys.Mvc.ValidatorRegistry.validators[rule.ValidationType];
    return (creator) ? creator(rule) : null;
}
Sys.Mvc.ValidatorRegistry._getDefaultValidators = function Sys_Mvc_ValidatorRegistry$_getDefaultValidators() {
    /// <returns type="Object"></returns>
    return { required: Function.createDelegate(null, Sys.Mvc.RequiredValidator.create), length: Function.createDelegate(null, Sys.Mvc.StringLengthValidator.create), regex: Function.createDelegate(null, Sys.Mvc.RegularExpressionValidator.create), range: Function.createDelegate(null, Sys.Mvc.RangeValidator.create), number: Function.createDelegate(null, Sys.Mvc.NumberValidator.create) };
}


Sys.Mvc.NumberValidator.registerClass('Sys.Mvc.NumberValidator');
Sys.Mvc.FormContext.registerClass('Sys.Mvc.FormContext');
Sys.Mvc.FieldContext.registerClass('Sys.Mvc.FieldContext');
Sys.Mvc.RangeValidator.registerClass('Sys.Mvc.RangeValidator');
Sys.Mvc.RegularExpressionValidator.registerClass('Sys.Mvc.RegularExpressionValidator');
Sys.Mvc.RequiredValidator.registerClass('Sys.Mvc.RequiredValidator');
Sys.Mvc.StringLengthValidator.registerClass('Sys.Mvc.StringLengthValidator');
Sys.Mvc._validationUtil.registerClass('Sys.Mvc._validationUtil');
Sys.Mvc.ValidatorRegistry.registerClass('Sys.Mvc.ValidatorRegistry');
Sys.Mvc.FormContext._validationSummaryErrorCss = 'validation-summary-errors';
Sys.Mvc.FormContext._validationSummaryValidCss = 'validation-summary-valid';
Sys.Mvc.FormContext._formValidationTag = '__MVC_FormValidation';
Sys.Mvc.FieldContext._hasTextChangedTag = '__MVC_HasTextChanged';
Sys.Mvc.FieldContext._hasValidationFiredTag = '__MVC_HasValidationFired';
Sys.Mvc.FieldContext._inputElementErrorCss = 'input-validation-error';
Sys.Mvc.FieldContext._inputElementValidCss = 'input-validation-valid';
Sys.Mvc.FieldContext._validationMessageErrorCss = 'field-validation-error';
Sys.Mvc.FieldContext._validationMessageValidCss = 'field-validation-valid';
Sys.Mvc.ValidatorRegistry.validators = Sys.Mvc.ValidatorRegistry._getDefaultValidators();

// ---- Do not remove this footer ----
// Generated using Script# v0.5.0.0 (http://projects.nikhilk.net)
// -----------------------------------

// register validation
Sys.Application.add_load(function() {
  Sys.Application.remove_load(arguments.callee);
  Sys.Mvc.FormContext._Application_Load();
});

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About the Author

Sacha Barber
Software Developer (Senior)
United Kingdom United Kingdom
I currently hold the following qualifications (amongst others, I also studied Music Technology and Electronics, for my sins)

- MSc (Passed with distinctions), in Information Technology for E-Commerce
- BSc Hons (1st class) in Computer Science & Artificial Intelligence

Both of these at Sussex University UK.

Award(s)

I am lucky enough to have won a few awards for Zany Crazy code articles over the years

  • Microsoft C# MVP 2016
  • Codeproject MVP 2016
  • Microsoft C# MVP 2015
  • Codeproject MVP 2015
  • Microsoft C# MVP 2014
  • Codeproject MVP 2014
  • Microsoft C# MVP 2013
  • Codeproject MVP 2013
  • Microsoft C# MVP 2012
  • Codeproject MVP 2012
  • Microsoft C# MVP 2011
  • Codeproject MVP 2011
  • Microsoft C# MVP 2010
  • Codeproject MVP 2010
  • Microsoft C# MVP 2009
  • Codeproject MVP 2009
  • Microsoft C# MVP 2008
  • Codeproject MVP 2008
  • And numerous codeproject awards which you can see over at my blog

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