How do you convert a HttpPostedFileBase to an Image?

Question

I am using ASP.NET MVC and I\'ve an action that uploads the file. The file is being uploaded properly. But I want width and height of the image. I think I need to convert th

Answer 1

If you are sure, that the source is image and doesn't need editing, you can do it easily as described here

[HttpPost]
public void Index(HttpPostedFileBase file)
{
    if (file.ContentLength > 0)
    {
        var filename = Path.GetFileName(file.FileName);

        System.Drawing.Image sourceimage =
            System.Drawing.Image.FromStream(file.InputStream);
    }
}

To secure the file is image, add javascript validation to View by adding accept attribute with MIME type to input tag

and jQuery validation script

$.validator.addMethod('accept', function () { return true; });

The whole solution can be found here