public static string SaveUploadeFile(AsyncFileUpload fup, string SaveFolder, UploadFileType filetype, UploadFileSizeLimitation filesizelimit, UploadImageSize? Imagesize = null)
{
string FileExtension = Path.GetExtension(fup.FileName);
if (!IsValidFileType(FileExtension, filetype))
{
MessageBoxHelper.ShowMessageBox(fup.Page, "نوع فایل نامعتبر است", "", MessageBoxType.Information);
return null;
}
if (!IsValidFileSize(fup.FileBytes.Length.ToLong(), filesizelimit))
{
MessageBoxHelper.ShowMessageBox(fup.Page, "حجم فایل نامعتبر است", "", MessageBoxType.Information);
return null;
}
MemoryStream memStream = Imagesize.HasValue ? ResizeImage(fup.FileBytes, Imagesize.Value, FileExtension) : new MemoryStream(fup.FileBytes);
string FileName = Path.GetFileNameWithoutExtension(fup.FileName);
if (FileName != null) FileName = FileName.Replace(" ", "_");
FileName = FileName + "__" + Common.CreateTemporaryPassword(8) + FileExtension;
String AttchFilePath = HttpContext.Current.Server.MapPath(SaveFolder + FileName);
File.WriteAllBytes(AttchFilePath, memStream.ToArray());
return FileName;
}
private static Size GetSize(UploadImageSize Imagesize)
{
switch (Imagesize)
{
case UploadImageSize._100_130:
return new Size(100, 130);
case UploadImageSize._1024_768:
return new Size(1024, 768);
default:
throw new ArgumentOutOfRangeException("Imagesize");
}
}
private static MemoryStream ResizeImage(byte[] filebytes, UploadImageSize Imagesize, string FileExtension)
{
Image original = Image.FromStream(new MemoryStream(filebytes));
Size s = GetSize(Imagesize);
Image resized = ResizeImage(original, s);
MemoryStream memStream = new MemoryStream();
if (FileExtension.ToUpper() == ".PNG")
resized.Save(memStream, ImageFormat.Png);
else if (FileExtension.ToUpper() == ".JPG" || FileExtension.ToUpper() == ".JPEG")
resized.Save(memStream, ImageFormat.Jpeg);
return memStream;
}
