Question

I’m using Disable autocomplete on html helper textbox in MVC to add autocomplete to “off” on text boxes:

    public static MvcHtmlString NoAutoCompleteTextBoxFor<TModel, TValue>(this HtmlHelper<TModel> html, Expression<Func<TModel, TValue>> expression, object htmlAttributes)
    {
        return html.TextBoxFor(expression, new { autocomplete = "off" });
    }

This is fine if there are no htmlAttributes on the view. Some of the textfields also have an extra CSS class added to them:

    @Html.NoAutoCompleteTextBoxFor(m => m.UserName, new { @class = "ignore" })

Rather than specifically create another helper for this, is there a way to merge the sets of htmlAttributes?

Thanks in advance…

Answer 1

You can use RouteValueDictionary.

var attrs = new RouteValueDictionary(htmlAttributes);
attrs ["autocomplete"] = "off";
return html.TextBoxFor(expression, attrs);