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Asp.net Mvc3 Htmlhelper Extension Method Like Beginform That Uses A Partial View?

I created an extension method based on this answer to the SO question c# - How can I create a Html Helper like Html.BeginForm - Stack Overflow and it works fine. Can I move the emb

Solution 1:

I haven't found any way to move the "embedded HTML" into a partial view exactly, but a slightly more-friendly way to encapsulate the HTML in a way that provides HTML and Razor syntax highlighting and Intellisense is to move into a view helper function in a file under the app App_Code folder as described in this post on "Hugo Bonacci's Blog".

Here's my helper function:

@helper HelpTextMessage(bool isHidden, string heading, Func<object, object> content)
{
    <div class="help-text @(isHidden ? "help-text-hidden" : "")">
        <div class="help-text-heading">
            @heading
        </div>
        <div class="help-text-body">
            @content(null)
        </div>
    </div>
}

Assuming the above helper function is in a file named ViewHelpers.cshtml in the App_Code folder, it can be called in a view like this:

@ViewHelpers.HelpTextMessage(false, "Something",
    @:Todo something, first do something-more-specific, thendo another-something-more-specific.
)

or this:

@ViewHelpers.HelpTextMessage(false, "Something",
    <p>Todo something, first do something-more-specific, thendo another-something-more-specific.</p>
    <p>Also, keep in mind that you might need todo something-else-entirely if blah-blah-blah.</p>
)

I like having the embedded HTML in a view more than I do being able to use the @using(Html.HelpTextMessage(...){ ... } syntax, so I'm pretty happy with this as a solution.

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