CODEWITHSUNDEEP
c#asp.netasp.net-mvc-4
John John
John John

Reputation: 1

Unable to reference Url.content inside my model view model class

I have the following model class inside my asp.net vmc web application :-

    public static class HtmlHelperExtensions
    {
        public static string ImageOrDefault(this HtmlHelper helper, string filename)
        {
            var imagePath = uploadsDirectory + filename + ".png";
            var imageSrc = File.Exists(HttpContext.Current.Server.MapPath(imagePath))
                               ? imagePath : defaultImage;

            return imageSrc;
        }

        private static string defaultImage = "/Content/uploads/virtual-data-center.png";
        private static string uploadsDirectory = Url.Contnet("/Content/uploads/");
    }
}

but i am unable to reference the Url.content in my last line of code, although i have included the using System.Security.Policy;

Upvotes: 2

Views: 736

Answers (1)

Ufuk Hacıoğulları
Ufuk Hacıoğulları

Reputation: 38478

You need to write an extension method UrlHelper class then:

public static class HtmlHelperExtensions
{
    private static string defaultImage = "/Content/uploads/virtual-data-center.png";

    public static string ImageOrDefault(this UrlHelper urlHelper, string fileName)
    {
        var imagePath = urlHelper.Content("/Content/uploads/") + fileName + ".png";

        HttpContextBase httpContext = urlHelper.RequestContext.HttpContext;
        var imageSrc = File.Exists(httpContext.Server.MapPath(imagePath))
                           ? imagePath : defaultImage;

        return imageSrc;
    }
}

Also don't use HttpContext.Current if you don't have to. You can use it in your view like this:

@Url.ImageOrDefault("somefile")

Upvotes: 2

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