What is ienumerable in csharp code

Question

0.00/5 (No votes)

See more:

Hi Guys ,

I found a csharp code in a book which am not able to understand can you please tell what it is IEnumerable . why its added here

C#

@foreach (Album a in (ViewBag.Albums as IEnumerable)) {
@a.Title
 }

Thanks In Advance Guys

What I have tried:

Need to know what is IEnumerable . why its used in the used in this code

Posted 17-Jul-16 0:38am

Member 11683406

Updated 17-Jul-16 4:45am

Add a Solution

Comments

Karthik_Mahalingam 17-Jul-16 8:00am

it refers casting the viewbag object to an ienumerable type.

this also will work.
@foreach (Album a in ViewBag.Albums ) {
@a.Title
}

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

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

F-ES Sitecore · Answer 1 · 2016-07-17T02:49:00

It's probably there (this is a guess) because the view code doesn't know what type ViewBag.Albums is at compile time (because ViewBag is a dynamic object) so the view won't compile if you try and loop through something that can't be looped through. By putting "as IEnumerable" it is going to cast ViewBag.Albums to IEnumerable which allows the object to be looped through. This allows the view to compile, however if the controller puts something in ViewBag.Albums that can't be cast to IEnumerable you'll get a run-time error.

A better solution to these issues is to use a proper model which is strongly-typed so the view would know what type Model.Albums is at compile time.

AFell2 · Answer 2 · 2016-07-17T04:45:00

Solution 3

IEnumerable is a generic collection of enumerated values (i.e., a list of objects). The code is casting the dynamic object ViewBag.Albums as a generic collection and then going through each enumeration by using the foreach command.

Posted 17-Jul-16 4:45am

AFell2

Kornfeld Eliyahu Peter · Answer 3 · 2016-07-17T00:56:00

Solution 1

RTFM[^]

Posted 17-Jul-16 0:56am

Kornfeld Eliyahu Peter