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ASP.NET MVC3 Razor With jQuery For Beginners

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19 Apr 2012CPOL38 min read 1M   29.8K   369  
Simple tutorial to create first MVC app
This is a simple introduction tutorial that can help ASP.NET MVC3 beginners to create a first MVC application. Following the instructions and using code attached to this article, you will be able to create a simple MVC web application and extend it.
//!----------------------------------------------------------
//! Copyright (C) Microsoft Corporation. All rights reserved.
//!----------------------------------------------------------
//! MicrosoftMvcAjax.js

Type.registerNamespace('Sys.Mvc');

////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.AjaxOptions

Sys.Mvc.$create_AjaxOptions = function Sys_Mvc_AjaxOptions() { return {}; }


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.InsertionMode

Sys.Mvc.InsertionMode = function() { 
    /// <field name="replace" type="Number" integer="true" static="true">
    /// </field>
    /// <field name="insertBefore" type="Number" integer="true" static="true">
    /// </field>
    /// <field name="insertAfter" type="Number" integer="true" static="true">
    /// </field>
};
Sys.Mvc.InsertionMode.prototype = {
    replace: 0, 
    insertBefore: 1, 
    insertAfter: 2
}
Sys.Mvc.InsertionMode.registerEnum('Sys.Mvc.InsertionMode', false);


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.AjaxContext

Sys.Mvc.AjaxContext = function Sys_Mvc_AjaxContext(request, updateTarget, loadingElement, insertionMode) {
    /// <param name="request" type="Sys.Net.WebRequest">
    /// </param>
    /// <param name="updateTarget" type="Object" domElement="true">
    /// </param>
    /// <param name="loadingElement" type="Object" domElement="true">
    /// </param>
    /// <param name="insertionMode" type="Sys.Mvc.InsertionMode">
    /// </param>
    /// <field name="_insertionMode" type="Sys.Mvc.InsertionMode">
    /// </field>
    /// <field name="_loadingElement" type="Object" domElement="true">
    /// </field>
    /// <field name="_response" type="Sys.Net.WebRequestExecutor">
    /// </field>
    /// <field name="_request" type="Sys.Net.WebRequest">
    /// </field>
    /// <field name="_updateTarget" type="Object" domElement="true">
    /// </field>
    this._request = request;
    this._updateTarget = updateTarget;
    this._loadingElement = loadingElement;
    this._insertionMode = insertionMode;
}
Sys.Mvc.AjaxContext.prototype = {
    _insertionMode: 0,
    _loadingElement: null,
    _response: null,
    _request: null,
    _updateTarget: null,
    
    get_data: function Sys_Mvc_AjaxContext$get_data() {
        /// <value type="String"></value>
        if (this._response) {
            return this._response.get_responseData();
        }
        else {
            return null;
        }
    },
    
    get_insertionMode: function Sys_Mvc_AjaxContext$get_insertionMode() {
        /// <value type="Sys.Mvc.InsertionMode"></value>
        return this._insertionMode;
    },
    
    get_loadingElement: function Sys_Mvc_AjaxContext$get_loadingElement() {
        /// <value type="Object" domElement="true"></value>
        return this._loadingElement;
    },
    
    get_object: function Sys_Mvc_AjaxContext$get_object() {
        /// <value type="Object"></value>
        var executor = this.get_response();
        return (executor) ? executor.get_object() : null;
    },
    
    get_response: function Sys_Mvc_AjaxContext$get_response() {
        /// <value type="Sys.Net.WebRequestExecutor"></value>
        return this._response;
    },
    set_response: function Sys_Mvc_AjaxContext$set_response(value) {
        /// <value type="Sys.Net.WebRequestExecutor"></value>
        this._response = value;
        return value;
    },
    
    get_request: function Sys_Mvc_AjaxContext$get_request() {
        /// <value type="Sys.Net.WebRequest"></value>
        return this._request;
    },
    
    get_updateTarget: function Sys_Mvc_AjaxContext$get_updateTarget() {
        /// <value type="Object" domElement="true"></value>
        return this._updateTarget;
    }
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.AsyncHyperlink

Sys.Mvc.AsyncHyperlink = function Sys_Mvc_AsyncHyperlink() {
}
Sys.Mvc.AsyncHyperlink.handleClick = function Sys_Mvc_AsyncHyperlink$handleClick(anchor, evt, ajaxOptions) {
    /// <param name="anchor" type="Object" domElement="true">
    /// </param>
    /// <param name="evt" type="Sys.UI.DomEvent">
    /// </param>
    /// <param name="ajaxOptions" type="Sys.Mvc.AjaxOptions">
    /// </param>
    evt.preventDefault();
    Sys.Mvc.MvcHelpers._asyncRequest(anchor.href, 'post', '', anchor, ajaxOptions);
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.MvcHelpers

Sys.Mvc.MvcHelpers = function Sys_Mvc_MvcHelpers() {
}
Sys.Mvc.MvcHelpers._serializeSubmitButton = function Sys_Mvc_MvcHelpers$_serializeSubmitButton(element, offsetX, offsetY) {
    /// <param name="element" type="Object" domElement="true">
    /// </param>
    /// <param name="offsetX" type="Number" integer="true">
    /// </param>
    /// <param name="offsetY" type="Number" integer="true">
    /// </param>
    /// <returns type="String"></returns>
    if (element.disabled) {
        return null;
    }
    var name = element.name;
    if (name) {
        var tagName = element.tagName.toUpperCase();
        var encodedName = encodeURIComponent(name);
        var inputElement = element;
        if (tagName === 'INPUT') {
            var type = inputElement.type;
            if (type === 'submit') {
                return encodedName + '=' + encodeURIComponent(inputElement.value);
            }
            else if (type === 'image') {
                return encodedName + '.x=' + offsetX + '&' + encodedName + '.y=' + offsetY;
            }
        }
        else if ((tagName === 'BUTTON') && (name.length) && (inputElement.type === 'submit')) {
            return encodedName + '=' + encodeURIComponent(inputElement.value);
        }
    }
    return null;
}
Sys.Mvc.MvcHelpers._serializeForm = function Sys_Mvc_MvcHelpers$_serializeForm(form) {
    /// <param name="form" type="Object" domElement="true">
    /// </param>
    /// <returns type="String"></returns>
    var formElements = form.elements;
    var formBody = new Sys.StringBuilder();
    var count = formElements.length;
    for (var i = 0; i < count; i++) {
        var element = formElements[i];
        var name = element.name;
        if (!name || !name.length) {
            continue;
        }
        var tagName = element.tagName.toUpperCase();
        if (tagName === 'INPUT') {
            var inputElement = element;
            var type = inputElement.type;
            if ((type === 'text') || (type === 'password') || (type === 'hidden') || (((type === 'checkbox') || (type === 'radio')) && element.checked)) {
                formBody.append(encodeURIComponent(name));
                formBody.append('=');
                formBody.append(encodeURIComponent(inputElement.value));
                formBody.append('&');
            }
        }
        else if (tagName === 'SELECT') {
            var selectElement = element;
            var optionCount = selectElement.options.length;
            for (var j = 0; j < optionCount; j++) {
                var optionElement = selectElement.options[j];
                if (optionElement.selected) {
                    formBody.append(encodeURIComponent(name));
                    formBody.append('=');
                    formBody.append(encodeURIComponent(optionElement.value));
                    formBody.append('&');
                }
            }
        }
        else if (tagName === 'TEXTAREA') {
            formBody.append(encodeURIComponent(name));
            formBody.append('=');
            formBody.append(encodeURIComponent((element.value)));
            formBody.append('&');
        }
    }
    var additionalInput = form._additionalInput;
    if (additionalInput) {
        formBody.append(additionalInput);
        formBody.append('&');
    }
    return formBody.toString();
}
Sys.Mvc.MvcHelpers._asyncRequest = function Sys_Mvc_MvcHelpers$_asyncRequest(url, verb, body, triggerElement, ajaxOptions) {
    /// <param name="url" type="String">
    /// </param>
    /// <param name="verb" type="String">
    /// </param>
    /// <param name="body" type="String">
    /// </param>
    /// <param name="triggerElement" type="Object" domElement="true">
    /// </param>
    /// <param name="ajaxOptions" type="Sys.Mvc.AjaxOptions">
    /// </param>
    if (ajaxOptions.confirm) {
        if (!confirm(ajaxOptions.confirm)) {
            return;
        }
    }
    if (ajaxOptions.url) {
        url = ajaxOptions.url;
    }
    if (ajaxOptions.httpMethod) {
        verb = ajaxOptions.httpMethod;
    }
    if (body.length > 0 && !body.endsWith('&')) {
        body += '&';
    }
    body += 'X-Requested-With=XMLHttpRequest';
    var upperCaseVerb = verb.toUpperCase();
    var isGetOrPost = (upperCaseVerb === 'GET' || upperCaseVerb === 'POST');
    if (!isGetOrPost) {
        body += '&';
        body += 'X-HTTP-Method-Override=' + upperCaseVerb;
    }
    var requestBody = '';
    if (upperCaseVerb === 'GET' || upperCaseVerb === 'DELETE') {
        if (url.indexOf('?') > -1) {
            if (!url.endsWith('&')) {
                url += '&';
            }
            url += body;
        }
        else {
            url += '?';
            url += body;
        }
    }
    else {
        requestBody = body;
    }
    var request = new Sys.Net.WebRequest();
    request.set_url(url);
    if (isGetOrPost) {
        request.set_httpVerb(verb);
    }
    else {
        request.set_httpVerb('POST');
        request.get_headers()['X-HTTP-Method-Override'] = upperCaseVerb;
    }
    request.set_body(requestBody);
    if (verb.toUpperCase() === 'PUT') {
        request.get_headers()['Content-Type'] = 'application/x-www-form-urlencoded;';
    }
    request.get_headers()['X-Requested-With'] = 'XMLHttpRequest';
    var updateElement = null;
    if (ajaxOptions.updateTargetId) {
        updateElement = $get(ajaxOptions.updateTargetId);
    }
    var loadingElement = null;
    if (ajaxOptions.loadingElementId) {
        loadingElement = $get(ajaxOptions.loadingElementId);
    }
    var ajaxContext = new Sys.Mvc.AjaxContext(request, updateElement, loadingElement, ajaxOptions.insertionMode);
    var continueRequest = true;
    if (ajaxOptions.onBegin) {
        continueRequest = ajaxOptions.onBegin(ajaxContext) !== false;
    }
    if (loadingElement) {
        Sys.UI.DomElement.setVisible(ajaxContext.get_loadingElement(), true);
    }
    if (continueRequest) {
        request.add_completed(Function.createDelegate(null, function(executor) {
            Sys.Mvc.MvcHelpers._onComplete(request, ajaxOptions, ajaxContext);
        }));
        request.invoke();
    }
}
Sys.Mvc.MvcHelpers._onComplete = function Sys_Mvc_MvcHelpers$_onComplete(request, ajaxOptions, ajaxContext) {
    /// <param name="request" type="Sys.Net.WebRequest">
    /// </param>
    /// <param name="ajaxOptions" type="Sys.Mvc.AjaxOptions">
    /// </param>
    /// <param name="ajaxContext" type="Sys.Mvc.AjaxContext">
    /// </param>
    ajaxContext.set_response(request.get_executor());
    if (ajaxOptions.onComplete && ajaxOptions.onComplete(ajaxContext) === false) {
        return;
    }
    var statusCode = ajaxContext.get_response().get_statusCode();
    if ((statusCode >= 200 && statusCode < 300) || statusCode === 304 || statusCode === 1223) {
        if (statusCode !== 204 && statusCode !== 304 && statusCode !== 1223) {
            var contentType = ajaxContext.get_response().getResponseHeader('Content-Type');
            if ((contentType) && (contentType.indexOf('application/x-javascript') !== -1)) {
                eval(ajaxContext.get_data());
            }
            else {
                Sys.Mvc.MvcHelpers.updateDomElement(ajaxContext.get_updateTarget(), ajaxContext.get_insertionMode(), ajaxContext.get_data());
            }
        }
        if (ajaxOptions.onSuccess) {
            ajaxOptions.onSuccess(ajaxContext);
        }
    }
    else {
        if (ajaxOptions.onFailure) {
            ajaxOptions.onFailure(ajaxContext);
        }
    }
    if (ajaxContext.get_loadingElement()) {
        Sys.UI.DomElement.setVisible(ajaxContext.get_loadingElement(), false);
    }
}
Sys.Mvc.MvcHelpers.updateDomElement = function Sys_Mvc_MvcHelpers$updateDomElement(target, insertionMode, content) {
    /// <param name="target" type="Object" domElement="true">
    /// </param>
    /// <param name="insertionMode" type="Sys.Mvc.InsertionMode">
    /// </param>
    /// <param name="content" type="String">
    /// </param>
    if (target) {
        switch (insertionMode) {
            case Sys.Mvc.InsertionMode.replace:
                target.innerHTML = content;
                break;
            case Sys.Mvc.InsertionMode.insertBefore:
                if (content && content.length > 0) {
                    target.innerHTML = content + target.innerHTML.trimStart();
                }
                break;
            case Sys.Mvc.InsertionMode.insertAfter:
                if (content && content.length > 0) {
                    target.innerHTML = target.innerHTML.trimEnd() + content;
                }
                break;
        }
    }
}


////////////////////////////////////////////////////////////////////////////////
// Sys.Mvc.AsyncForm

Sys.Mvc.AsyncForm = function Sys_Mvc_AsyncForm() {
}
Sys.Mvc.AsyncForm.handleClick = function Sys_Mvc_AsyncForm$handleClick(form, evt) {
    /// <param name="form" type="Object" domElement="true">
    /// </param>
    /// <param name="evt" type="Sys.UI.DomEvent">
    /// </param>
    var additionalInput = Sys.Mvc.MvcHelpers._serializeSubmitButton(evt.target, evt.offsetX, evt.offsetY);
    form._additionalInput = additionalInput;
}
Sys.Mvc.AsyncForm.handleSubmit = function Sys_Mvc_AsyncForm$handleSubmit(form, evt, ajaxOptions) {
    /// <param name="form" type="Object" domElement="true">
    /// </param>
    /// <param name="evt" type="Sys.UI.DomEvent">
    /// </param>
    /// <param name="ajaxOptions" type="Sys.Mvc.AjaxOptions">
    /// </param>
    evt.preventDefault();
    var validationCallbacks = form.validationCallbacks;
    if (validationCallbacks) {
        for (var i = 0; i < validationCallbacks.length; i++) {
            var callback = validationCallbacks[i];
            if (!callback()) {
                return;
            }
        }
    }
    var body = Sys.Mvc.MvcHelpers._serializeForm(form);
    Sys.Mvc.MvcHelpers._asyncRequest(form.action, form.method || 'post', body, form, ajaxOptions);
}


Sys.Mvc.AjaxContext.registerClass('Sys.Mvc.AjaxContext');
Sys.Mvc.AsyncHyperlink.registerClass('Sys.Mvc.AsyncHyperlink');
Sys.Mvc.MvcHelpers.registerClass('Sys.Mvc.MvcHelpers');
Sys.Mvc.AsyncForm.registerClass('Sys.Mvc.AsyncForm');

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Written By
Program Manager Microsoft
Serbia Serbia
Graduated from Faculty of Electrical Engineering, Department of Computer Techniques and Informatics, University of Belgrade, Serbia.
Currently working in Microsoft as Program Manager on SQL Server product.
Member of JQuery community - created few popular plugins (four popular JQuery DataTables add-ins and loadJSON template engine).
Interests: Web and databases, Software engineering process(estimation and standardization), mobile and business intelligence platforms.

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