Question

I am currently using Visual Studio 2008 for my ASP .NET application. I am trying to server an excel file via the Response object. The problem is I cannot seem to set the title of the file to Japanese. If I set it to Japanese file name, it gets returned as garbage character. I am using a Japanese IE browser in a Japanese WinXP.

Response.AppendHeader("Content-Type", "application/vnd.ms-excel");
Response.AddHeader("Content-Disposition", String.Format("attachment; filename=\"{0}\"", "日本語.xls"));

OR

Response.AddHeader("Content-Disposition", String.Format("attachment; filename=\"{0}\"", Server.HtmlEncode("日本語.xls")));

I already tried to change the encoding to Shift-JIS

Response.Charset = "Shift_JIS";

or

Response.Charset = "sjis";

Any ideas? Btw, I had the same problem with Visual Studio 2005 too.

Answer 1

I’m not an ASP expert but have you tried recoding the filename using UrlEncode?

Response.AddHeader("Content-Disposition",
    System.Web.HttpUtility.UrlEncode(String.Format("attachment; filename=\"{0}\"", "日本語.xls")));