StreamWriter下载效果

Question

Using sw As StreamWriter = New StreamWriter(filePath)
                        For i As Integer = 0 To csvValue.Count - 1
                            sw.WriteLine(csvValue(i).ToString())
                        Next
                        sw.Close()
                    End Using这的filePath是指定的!我想用下载的提示框实现!让用户自己选该如何操作

Answer 1

自己解决了!Private Sub download(ByVal name As String)
        Dim df As FileInfo = New FileInfo(name)
        Response.Clear()
        Response.ClearHeaders()
        Response.Buffer = False
        Response.ContentType = "application/octet-stream"
        Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(df.FullName, System.Text.Encoding.UTF8))
        Response.AppendHeader("Content-Length", df.Length.ToString())
        Response.WriteFile(df.FullName)
        Response.Flush()
        'Response.End()//为了把生成的文件删除所以去掉了这句!不然程序跑到这就停止了
    End Sub

Answer 2

做成流方式的下载,自动会弹出选择路径,或者用activx控件