Migrate html helpers to ASP.NET Core

问题

I'm converting a project to ASP.NET Core. I need to migrate lots of reusable html helpers, but html helpers do not exist in Core.

Some are complex, some simple. Here's a extremely simple example:

@helper EditIcon()
{
    <i class="glyphicon glyphicon-pencil"></i>
}

Note that this is only an example.

Point is writing a tag helper for that is gigantic overkill. Same for partials. Same for view components.

We're talking about a little snippet of Razor. What is my best option?

回答1:

So, seems there are only three options:

• tag helpers
• partials
• view components

So no simple way to migrate Razor snippets, without jumping through hoops.

---

EDIT

So looks like html helpers are available after all. They just haven't been properly documented!

回答2:

@helper directive is removed, but if you may consider using Func<dynamic, IHtmlContent> you are migrating a legacy code. Here is an example:

@{
    Func<dynamic, IHtmlContent> BrowserInfo(string btitle, string href, string imgfilename) =>
        @<div style="text-align: center">
            <a href="@href">
                <img src="~/content/images/browsers/@imgfilename" alt="@btitle"/>@btitle</a>
        </div>;
}

And use it just like old helper methods:

@BrowserInfo("Google Chrome", "http://www.google.com/chrome/", "browser_chrome.gif")(null)

来源：https://stackoverflow.com/questions/42494980/migrate-html-helpers-to-asp-net-core