CODEWITHSUNDEEP
asp.net-mvc
anemaria20
anemaria20

Reputation: 1728

Does the layout or the view get loaded first in ASP.NET MVC?

I've read somewhere that in ASP.NET MVC, the view gets "loaded" before the layout (the view logic gets applied before the layout logic). So I was wondering what's the real answer here, and is there a way to check this?

Upvotes: 5

Views: 2951

Answers (3)

DarthTommy
DarthTommy

Reputation: 457

I would say that the layout logic gets loaded "first." For example, I have logic in my _layout that states:

@if (User.isAdmin)
{
    @Html.ActionLink("Settings", "Index","Admin")
}

Saying that if the users role is admin then allow them to view/click the settings button. So the layout logic would have to load "first."

Upvotes: -2

Erik Philips
Erik Philips

Reputation: 54618

If you mean what view get rendered in which order you can simply add debug statements to the views to find out. For example:

_Layout.cshtml

    @{ System.Diagnostics.Debug.WriteLine("Pre-RenderBody()");}
    @RenderBody()
    @{ System.Diagnostics.Debug.WriteLine("Post-RenderBody()");}

index.cshtml

@{ System.Diagnostics.Debug.WriteLine("index.cshtml:start");}
<div>Home Page</div>
@{ System.Diagnostics.Debug.WriteLine("index.cshtml:end");}

Show ouput from: [Debug]:

index.cshtml:start

index.cshtml:end

Pre-RenderBody()

Post-RenderBody()

So the index.cshtml is executed first. Then the layout, and the content is inserted (not really the right term as it's actually appended to the stream/string/stringbuilder prior to everything after @RenderBody()).

Upvotes: 6

mihkov
mihkov

Reputation: 1189

The server returns whole HTML rendered from the view and layout.

Upvotes: -2

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