public virtual HttpResponseMessage GetThumbnail(long id)
{
var file = fileUploadService.GetFileThumbnail(id);
if (file == null)
{
return(new HttpResponseMessage(HttpStatusCode.NotFound));
}
var result = new HttpResponseMessage(HttpStatusCode.OK);
string ext = Path.GetExtension(file.Name).ToLower();
if (!neadThumbnailFileExt.Contains(ext))
{
if (ext == ".xls" || ext == ".xlsx")
{
result.Content = new ByteArrayContent(Resources.Resource.Img_Excel.ToByteArray());
}
if (ext == ".doc" || ext == ".docx")
{
result.Content = new ByteArrayContent(Resources.Resource.Img_Word.ToByteArray());
}
}
else
{
if (file.Thumbnail != null)
{
result.Content = new ByteArrayContent(file.Thumbnail);
}
else
{
result.Content = new ByteArrayContent(Resources.Resource.Img_Blank.ToByteArray());
}
}
result.Content.Headers.ContentDisposition =
new ContentDispositionHeaderValue("attachment")
{
FileName = file.Name,
Size = file.Size
};
result.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
return(result);
}