CODEWITHSUNDEEP
c#asp.netasp.net-mvcrazordata-annotations
Drazen Bjelovuk
Drazen Bjelovuk

Reputation: 5472

Using Html.DisplayFor() outside of view or getting formatted property from DisplayFormat annotation

I have a utility class with a method to which I'm calling and passing an object from a view. I need to call Html.DisplayFor() from within that method or simply need a way to get the property of my model formatted by the DisplayFormat data annotation.

[DisplayFormat(DataFormatString = "{0:MMMM d, yyyy}")]
System.DateTime ReleaseDate { get; set; }

Is there any way to achieve this outside of a view? I've tried things like passing my HtmlHelper object to the method:

public static string GetProductSnippet(Product product, HtmlHelper<List<Product>> helper)
{
    return helper.DisplayFor(p => p.ReleaseDate).ToString();
}

But this won't work, as my HtmlHelper object will not always have the same generic type. Is there some way to get the formatted version of a property without using the HtmlHelper class?

Upvotes: 0

Views: 353

Answers (1)

Vsevolod Goloviznin
Vsevolod Goloviznin

Reputation: 12324

You can use a generic type for the method: 

public static string GetProductSnippet<T>(Product product, HtmlHelper<T> helper)
{
    return helper.DisplayFor(p => p.ReleaseDate).ToString();
}

var markup = GetProductSnippet<List<Product>>(product, helper);

As for getting the code without the helper, you can get the implementation of the display helper from MVC source code and adjust it to your needs

Upvotes: 1

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