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Client side Model binding with ASP.NET MVC 3 and KnockoutJs

, 19 Feb 2012 CPOL
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Client side Model binding with ASP.NET MVC 3 and KnockoutJs

Client side Model binding with ASP.NET MVC 3 and KnockoutJs Knockoutjs is a type safe client side library which provides declarative bindings of DOM with model data, Automatic UI refresh when view model changes, etc. You can read more about KnockoutJS on its website. You can read more about AspNet MVC3 on ASP.NET MVC website.


Create Model class on server side MarketPriceModel, its collection class MarketPriceCollectionModel.

public class MarketPriceCollectionModel
        public List Prices { get; private set; }

        public void Add(MarketPriceModel model)
            if (Prices == null)
                Prices = new List();

    public class MarketPriceModel
        public string Symbol { get; set; }
        public double Open { get; set; }
        public double Close { get; set; }
        public double Low { get; set; }
        public double High { get; set; }
        public DateTime TimeStamp { get; set; }

Controller: MarketWatchController

This controller class has action method “MarketPriceUI” which returns MarketPriceUI view and injects MarketPriceCollectionModel class as model.

public class MarketWatchController : Controller
        // GET: /MarketWatch/

        public ActionResult MarketPriceUI()
         MarketPriceCollectionModel collection = new MarketPriceCollectionModel();
         collection.Add(new MarketPriceModel() { Symbol = "MSFT",
        Open = 34.5d, Close = 35.5d, Low = 33.4d, High = 36.5d });
         collection.Add(new MarketPriceModel() { Symbol = "Goog",
        Open = 54.5d, Close = 58.65d, Low = 52.78d, High = 59.23d });

         return View(collection);

View MarketPriceUI.cshtml @model: contains object returns from controller. We can use this object to show data in view, but here I want to convert @model to knockoutJS viewmodel.

var initialData = @(Html.Raw(Json.Encode(Model.Prices)));

viewModel = {prices: ko.observableArray(initialData)

  • @(Html.Raw(Json.Encode(Model.Prices))) converts model data into json and this data is set as observablearray for knockoutjs viewmodel.
  • “data-bind="foreach: viewModel.prices" statement can loop in this viewmodel to show data on page.
@model MarketWatchWebSample.Models.MarketPriceCollectionModel
    ViewBag.Title = "MarketWatch";
    Layout = "~/Views/Shared/_Layout.cshtml";

var viewModel;
    $(document).ready(function () {

            var initialData = @(Html.Raw(Json.Encode(Model.Prices)));

viewModel = {prices: ko.observableArray(initialData)



    <tbody data-bind="foreach: viewModel.prices"> 
                <span data-bind="text:Symbol"></span> 
                <span data-bind="text:High"></span> 
                <span data-bind="text:Low"></span> 




This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Neeraj Kaushik 1980
Architect Initto Technologies India Pvt Ltd
India India
• Technical Architect with 9 years of Application development experience
• Good knowledge and expertise on multiple areas of technologies and their business applications
• Strong experience in high performance and business critical applications.
• Experience in creating framework, Code generators, and UML diagrams.
• Developed messaging framework for Algo Trading, technical analysis tool, market feed client Api, Payment Solutions for SWIFT, Internationalization for Core Banking Solution product etc.
• Practical knowledge of building and practicing agile delivery methodologies (SCRUM & TDD).
• Proven ability in producing technical documentation and presentation to clients.
• Active participation in trainings, article writing & taking initiatives.
• Passion to get knowledge from various resources acquires best practices.
• Good understanding of financial domain especially in investment banking and banking domain.

Technical Architectures, Multi-threading Architecture, Algo Trading systems, Messaging Framework, FIX Implementation, Technical Analysis & Charting, ActiveMQ, MSMQ, C#, WinForms, ASP.NET MVC, Jquery, WCF, Sql Server 2008, Oracle, TFS, TDD, QuickFix, Open Source Tools & Framework.

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Comments and Discussions

QuestionIs KO is better then Telrik with MV3? Pin
am.net15-Jan-13 21:46
memberam.net15-Jan-13 21:46 
AnswerRe: Is KO is better then Telrik with MV3? Pin
Neeraj Kaushik 198016-Jan-13 2:04
memberNeeraj Kaushik 198016-Jan-13 2:04 
GeneralRe: Is KO is better then Telrik with MV3? Pin
am.net16-Jan-13 6:53
memberam.net16-Jan-13 6:53 
GeneralMy vote of 5 Pin
Denis Vuyka9-Oct-12 10:06
memberDenis Vuyka9-Oct-12 10:06 
QuestionHow to create, edit, update and delete record Pin
Riuraj24-Jul-12 11:07
memberRiuraj24-Jul-12 11:07 
AnswerRe: How to create, edit, update and delete record Pin
Neeraj Kaushik 19801-Aug-12 8:53
memberNeeraj Kaushik 19801-Aug-12 8:53 
Question[My vote of 2] Source Download? Pin
JoeCane17-Jul-12 14:44
memberJoeCane17-Jul-12 14:44 
GeneralJust what I was looking for... Pin
Jeremy Albright13-Mar-12 3:46
memberJeremy Albright13-Mar-12 3:46 
QuestionScript tags missing in fourth code block Pin
Nic_Roche19-Feb-12 13:28
memberNic_Roche19-Feb-12 13:28 
AnswerRe: Script tags missing in fourth code block Pin
Neeraj Kaushik 198019-Feb-12 20:52
memberNeeraj Kaushik 198019-Feb-12 20:52 
GeneralMy vote of 2 Pin
Dean Oliver19-Feb-12 7:03
memberDean Oliver19-Feb-12 7:03 

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