Response的Content Type的类型
private string CheckType(string filename)
{
string ContentType;
switch (filename.Substring(filename.LastIndexOf(".")).Trim().ToLower())
{
case ".asf ":
ContentType = "video/x-ms-asf ";
break;
case ".avi ":
ContentType = "video/avi ";
break;
case ".doc ":
ContentType = "application/msword ";
break;
case ".zip ":
ContentType = "application/zip ";
break;
case ".xls ":
ContentType = "application/vnd.ms-excel ";
break;
case ".gif ":
ContentType = "image/gif ";
break;
case ".jpg ":
ContentType = "image/jpeg ";
break;
case "jpeg ":
ContentType = "image/jpeg ";
break;
case ".wav ":
ContentType = "audio/wav ";
break;
case ".mp3 ":
ContentType = "audio/mpeg3 ";
break;
case ".mpg ":
ContentType = "video/mpeg ";
break;
case ".mepg ":
ContentType = "video/mpeg ";
break;
case ".rtf ":
ContentType = "application/rtf ";
break;
case ".html ":
ContentType = "text/html ";
break;
case ".htm ":
ContentType = "text/html ";
break;
case ".txt ":
ContentType = "text/plain ";
break;
default:
ContentType = "application/octet-stream ";
break;
}
return ContentType;
}