对于ASP.NET MVC中的URL，Url.Content（“〜/ ...”）和“〜/”之间是否存在差异？

Question

I'm dealing with a web application that resides within a subdirectory on a domain, and I'm attempting to discern the most idiomatic way of inserting a proper URL into an img tag. While the following both produce the same HTML on the client machine, I'm not sure which is more "correct"

• <img src="~/Content/images/blah.png" />
• <img src="@Url.Content("~/Content/images/blah.png")

Both of these produce an absolute path of /subfolder/Content/images/blah.png , so both work, but I'm curious which one is the right way of doing it.

Is there any difference between these two approaches (for example, is one being resolved by a different mechanism than the other?), or is the former just syntactic sugar for the latter?

Answer 1

With MVC4 you no longer need @Url.Content

If Razor detects ~/ it would created an output identical to @Url.Content.

http://www.beletsky.net/2012/04/new-in-aspnet-mvc4-razor-changes.html

Answer 2

Nothing is "more correct". I would use the shorthand since Razor now supports it.

Answer 3

if you are passing string through controller, you need to use @url.content(). but it you are passing path directly in .cshtml, no need to use @url.content().

Ex. No need.

<img src="@Url.Content("~/Content/images/blah.png")  />

NEED

@ViewBag.ImagePath = "~/Content/images/blah.png";
<img src="@Url.Content(@ViewBag.ImagePath)" />