Prototype in Javascript

Prototype are link or pointer to other objects. All objects have prototype. Objects are chained together by the prototype chain.

//Constructor
function Office(name, location, domain)
{
this.name=name;
this.location=location;
this.domain=domain;
}

//Prototype

Office.Prototype={
interview: function(){
alert("Hi office location is"+ this.location);
}
};

var myoffice= new Office("expo-e", "london", "telecommunication");

myoffice.interview; // hi office location is london

In the above example

myoffice prototype is shared with Office
Office prototype is shared with object
Object prototype is shared with null

myoffice->Office->Object->null, makes the complete chain of prototype.

when you lookup a property on an object, it will walk up the prototype chain until its found. First my office is checked then the Office is checked, then object and finally it reaches null.

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How to add a stored procedure in Entity Framework

Step1- Open the .edmx file
Step2- Right click in .edmx file and select Update Model from Database

Step3- Select Add tab, select Stored Procedures and select the procedure you want to add and click finish as shown in below figure a

Step4- Build the Entity Project to make sure nothing is broke

Step5- Right click on .edmx file and select Model Browser

Step6- Model Browser Popup will appear as below figure. Click on the Strored Procedures in PricingToolModel.Stroe and click the newly added SP (it will appear here)
Step7- The Add Function Import screen will appear

Based on the return we can set up.

If you are returning a multiple column Click on the Get Column Information First, then click the new Complex Type. After that you can see the Return of Collection will select the Complex and a complex type is generated by EF

If its returning scalar you can select which return type like int, string etc...

If its return entitty (means table) please select the correct table from the list..

Click…

How to write secure mvc application using encrypting URL

There are lots ways available to write the secure Mvc application. In my experience I came across lots of secure application in public facing. I want to tell about some of the mechanism I followed.
1- encrypting the URL Parameters and preserving id's encrypted on the client side
1- I always make sure if I pass Id or any sensitive data into the view always make sure it's encrypted. By doing so make sure if we forced to use HTML.hidden or HTML.hidden for have the encrypted values, in action link if I pass any parameters from the client side (eg:- edit or create or navigating between different actions we can make sure that all the values are encrypted)
During the design of the actions results if it's http get I usually encrypt the sensitive data
[httpget]
Public actionresult display()
{
TestModel testModel=new TestModel();
testModel.id= encrypt(id);
Return View(testModel);
}
[httppost]
Public ActionResult Display(string id)
{
Guid d_id= new Guid(decrypt(id));
// do operati…

Bootstrap Server Side Pagination - alternative to data tables

BackgroundMost of the Web developers are familiar with the Datatable.Net for pagination. DataTables can integrate seamlessly with Bootstrap using Bootstrap's table styling options to present a consistent interface with your Bootstrap driven site / app. The main disadvantage with Data table.net is it is applying the pagination at the client side and for the large data set it can take minutes to load the data. Like every other designer I also faced the problem with Data table.net. So what is the best option to replace the client side paging and searching. So I forced to create a custom module to do the pagination and searching. The below sample don’t support the sorting, but got an option to extend the functionality. Please check my Next Post for sorting functionality The technologies used include, MVC 4.0, HTML5, Bootstarp.css, Knockout. js, Ajax, Web Api 2.0, Linq to SQL and C#. Knockout.js Model’s Filter Modelvar filter = function () { var self = this; self.searchText = ko.observable(…

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