Currently I have a byte[] that contains all the data of an image file, just want to build an instance of HttpPostedFileBase so that I can use an existing method, instead of creating a new overload one.
public ActionResult Save(HttpPostedFileBase file)
public ActionResult Save(byte[] data)
{
//Hope I can construct an instance of HttpPostedFileBase here and then
return Save(file);
//instead of writing a lot of similar codes
}
Create a derived class as follows:
class MemoryFile : HttpPostedFileBase
{
Stream stream;
string contentType;
string fileName;
public MemoryFile(Stream stream, string contentType, string fileName)
{
this.stream = stream;
this.contentType = contentType;
this.fileName = fileName;
}
public override int ContentLength
{
get { return (int)stream.Length; }
}
public override string ContentType
{
get { return contentType; }
}
public override string FileName
{
get { return fileName; }
}
public override Stream InputStream
{
get { return stream; }
}
public override void SaveAs(string filename)
{
using (var file = File.Open(filename, FileMode.CreateNew))
stream.CopyTo(file);
}
}
Now you can pass instance of this class where HttpPostedFileBase is expected.