ASP.NET MVC/C#: Can I create valid custom HTML attributes using Html.ActionLink()?

Question

I have the need to put a custom attribute on an anchor which I am constructing using Html.ActionLink()

<%: Html.ActionLink("Delete", "Delete", new { id = Model.ID }, new { data-icon = "ui-icon-trash" })%>

Using the proper "data-" prefix, as per http://www.w3.org/TR/html5/elements.html#attr-data, I get the following error from Visual Studio.

Invalid anonymous type member declarator. Anonymous type members must be declared with a member assignment, simple name or member access.

Since I can't use a hyphen in the anonymous type, what would be the best way to go about adding my custom HTML attribute?

Darin Dimitrov · Accepted Answer · 2010-11-20 23:02:22Z

17

data-icon is not a valid C# variable name. The closest you could get is this:

<%: Html.ActionLink(
    "Delete", 
    "Delete", 
    new { id = Model.ID }, 
    new Dictionary<string, string> { { "data-icon",  "ui-icon-trash" } }
) %>

Of course this issue has been addressed in ASP.NET MVC 3 and you no longer need to write spaghetti code. So:

<%: Html.ActionLink(
    "Delete", 
    "Delete", 
    new { id = Model.ID }, 
    new { data_icon, "ui-icon-trash" }
) %>

And the underscore will be automatically converted to a hyphen.

edited Nov 20, 2010 at 23:02

answered Nov 20, 2010 at 22:56

Darin Dimitrov

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Jeff Camera Over a year ago

Cool, looks like it's time to upgrade!

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