Unable to cast object of type 'System.Web.HttpInputStream' to type 'System.IO.FileStream' MVC 3

Question

I have met an issue regarding the casting type from HttpInputStream to FileStream.

How I did ?

I have a HttpPostedFileBase object and I want to have

Answer 1

public byte[] LoadUploadedFile(HttpPostedFileBase uploadedFile)
{
    var buf = new byte[uploadedFile.InputStream.Length];
    uploadedFile.InputStream.Read(buf, 0, (int)uploadedFile.InputStream.Length);
    return buf;
}