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Asp .net MVC Questions and Answers-3

Asp .net MVC Questions and Answers

Asp .net MVC Questions and Answers

21) Explain how you can send the result back in JSON format in MVC?
In order to send the result back in JSON format in MVC, you can use “JSONRESULT” class.

22) Explain what is the difference between View and Partial View?
View
Partial View
It contains the layout page
It does not contain the layout page
Before any view is rendered, viewstart page is rendered
Partial view does not verify for a viewstart.cshtml. We cannot put common code for a partial view within the viewStart.cshtml.page
View might have markup tags like body, html, head, title, meta etc.
Partial view is designed specially to render within the view and just because of that it does not consist any mark up
View is not lightweight as compare to Partial View
We can pass a regular view to the RenderPartial method
                                                              
23) List out the types of result in MVC?
In MVC, there are twelve types of results in MVC where “ActionResult” class is the main class while the 11 are their sub-types
ViewResult
PartialViewResult
EmptyResult
RedirectResult
RedirectToRouteResult
JsonResult
JavaScriptResult
ContentResult
FileContentResult
FileStreamResult
FilePathResult

24) Mention what is the importance of NonActionAttribute?
All public methods of a controller class are treated as the action method if you want to prevent this default method then you have to assign the public method with NonActionAttribute.

25) Mention what is the use of the default route {resource}.axd/{*pathinfo} ?
This default route prevents request for a web resource file such as Webresource.axd or ScriptResource.axd from being passed to the controller.

26) Mention the order of the filters that get executed, if the multiple filters are implemented?
The filter order would be like
Authorization filters
Action filters
Response filters
Exception filters

27) Mention what filters are executed in the end?
In the end “Exception Filters” are executed.
28) Mention what are the file extensions for razor views?
For razor views the file extensions are
.cshtml: If C# is the programming language
.vbhtml: If VB is the programming language

29) Mention what are the two ways for adding constraints to a route?
Two methods for adding constraints to route is
Using regular expressions
Using an object that implements IRouteConstraint interface

30) Mention two instances where routing is not implemented or required?
Two instance where routing is not required are
When a physical file is found that matches the URL pattern
When routing is disabled for a URL pattern

31) Mention what are main benefits of using MVC?
There are two key benefits of using MVC
As the code is moved behind a separate class file, you can use the code to a great extent

As behind code is simply moved to.NET class, it is possible to automate UI testing. This gives an opportunity to automate manual testing and write unit tests.

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