Asp.Netファイルダウンロード

Asp.Netのファイルダウンロード処理のサンプルソースをメモします。

VB.Net

Private Sub DownloadFile(ByVal pstrContent As String)
    Response.Clear()
    Response.ContentType = "application/octet-stream"
    Response.Charset = "Shift_JIS"
    Response.ContentEncoding = Encoding.Default
    Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(DateTime.Now.ToString("yyyyMMdd") + ".csv"))
    Response.Write(pstrContent)
    'Response.WriteFile(strFilePath)
    'Response.BinaryWrite(objFileIO.IFileByte(strFilePath))
    Response.Flush()
    Response.Close()
End Sub

レスポンス内容タイプ：
"application/msword"
"application/vnd.ms-excel"
"application/pdf"
"application/vnd.ms-powerpoint"
"image/jpeg"
"image/bmp"
"image/gif"
"application/zip"
"text/plain"
"application/octet-stream"