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Implement Jquery.tmpl (template) with KnockoutJS, ASP.NET MVC 3

, 24 Apr 2012 CPOL
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Implementing Jquery.tmpl (template) with KnockoutJS, ASP.NET MVC 3.

In continuation of my previous post on search implementation using knockoutjs. In the previous example I showed how to bind a grid with the KnockoutJS observable array object. Because of observable characteristics, once the view model updates the knockoutjs engine renders HTML controls which are bound to that view model. I found one problem with it when dealing with huge data.

I had a requirement to show thousands of records in a grid without paging. If I use the knockoutjs way of binding with an HTML table it takes time to load and the browser also pops up a message about an “Unresponsive script” which asks to further render or to stop the script.

I wanted to use the same view model for data but I didn’t want to use the “data-bind” attribute in HTML. I found a good jQuery plugin (jQuery.tmpl) through which we can define a template and can inject data at runtime. Here I’ll show you how to implement it. I am using the same code base which I used in my previous post.

How to reproduce the error?

Let us say I am adding 20000 employees in a collection and it will render on the UI.

image

Binding with the HTML table:

image

I get the following error message.

image

Solution:

Implementation of Jquery.tmpl

To avoid this message and to render data fast I chose jquery.tmpl to render the HTML table. Here are the steps which will define the implementation:

Step1: Download the Jquery.tmpl.js file from jquery

http://github.com/jquery/jquery-tmpl

http://ajax.microsoft.com/ajax/jquery.templates/beta1/jquery.tmpl.min.js

and save in the scripts folder. You can directly reference the script file as well if you want.

Step 2: Reference jquery.tmpl.min.js in the relevant page or the _layout.cshtml file.

<script src="@Url.Content("~/Scripts/jquery.tmpl.min.js")" 
    type="text/javascript"></script>

You can also give the direct path from

<script src="http://ajax.microsoft.com/ajax/jquery.templates/beta1/jquery.tmpl.min.js" type="text/javascript"></script>

Step 3: Create a blank tbody where data will populate.

<tbody id="datalist"></tbody>

Step 4: Create a template of the <tr> element in which data will render.

image

Step 4: Populate data in the template.

image

Step 5: Run the application.

image

image

You can find the code here.

License

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

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About the Author

Neeraj Kaushik1980
Architect First Gulf Bank
United Arab Emirates United Arab Emirates
• Solution Architect /Principle Lead Developer with 12 years of IT experience with more emphasize on Capital Domain and Investment banking domain.
• Strong experience in Continuous Integration, Delivery and DevOps solutions.
• Strong experience in drafting solutions, stakeholder communications and risk management.
• Proved strong coding and designing skills with agile approaches (TDD, XP framework, Pair Programming).
• Delivered many projects with involvement from inception to delivery phase.
• Strong experience in high performance, multithreaded, low latency applications.
• Ability to communicate with the business and technical stake holders effectively.
• Have extensive experience in Capital Market Domain: Front Office & BackOffice (Algorithm Trading tools, messaging framework, Enterprise bus, integration of FIX APIs and many trading APIs).
• Functional knowledge of Portfolio/Wealth Management, Equities, Fixed Income, Derivatives, Forex.
• Practical knowledge of building and practicing agile delivery methodologies (SCRUM, TDD, Kanban).

Technical Skills

• Architectural: Solution Design, Architectural Presentations (Logical, Component, Physical, UML diagrams)
• Languages: C#, C++
• Server Technologies: WCF, Web API,
• Middle Ware: ActiveMQ, RabbitMQ, Enterprise Service Bus
• UI Technologies: Winforms and WPF
• Web Technologies: Asp.Net Mvc, KnockOutJS, JQuery, Advance Java Scripts Concepts
• Databases: Sql Server 2008 +, MySQL
• Tools/Frameworks: TFS, SVN, NUnit, Rhino Mocks, Unity, NAnt, QuickFix/n, Nhibernate, LINQ, JIRA,

Functional Skills

• Wealth Management System, Trade Life Cycle, Trading Components and their integrations
• Working knowledge of Stocks, Bonds, CFDs,Forex, Futures and Options
• Pricing Systems, Market Data Management,
• BackOffice Processes : Settlement Processes, Netting, Tax, Commissions, Corporate Actions Handling,
• Reporting Solutions : OLTP and OLAP Data model designing
• FIX Engine implementation and integration

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Comments and Discussions

 
Question[My vote of 1] jQUery.tmpl is obsolete... Pin
Seishin#25-Apr-12 4:01
memberSeishin#25-Apr-12 4:01 
QuestionImplementation Pin
Manov rao24-Apr-12 20:47
memberManov rao24-Apr-12 20:47 

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