下载文件表单服务器时出错 [英] Error in Downloading a file Form Server

问题描述

您好，我已经设计了一个应用程序，可以在其中上载并下载文件，当我单击行"按钮以下载文件时，回发触发器并下载了文件，但是问题是当文件被下载时，UI字体变为更大的PLZ建议克服此错误

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链接上的代码单击

Hi i Have Designed a application in which i wil be uploading and Downloadint the File, When i Click a LInk Button to download a file a Post Back triggers and file is downloaded But the Prolem is when file is downloaded my UI Font becomes Bigger plz suggest to over come from this error

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Code on Link Click

Protected Sub lnkAttach_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles lnkAttach.Click
        Dim jscript As String
        Dim download As String
        download = "download.aspx?FileId=" & lnkAttach.Text
        jscript = "<script>"
        jscript = jscript & "var winPrint=window.open('" & download & "', '', 'letf=0,top=0,width=1,height=1,toolbar=0,scrollbars=0,status=0');" & vbCrLf
              jscript = jscript & "</script>"

        HttpContext.Current.Response.Write(jscript)

    End Sub

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在download.aspx中的代码

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Code In the download.aspx

Dim strURL As String = "fileServer/" & Request.QueryString("FileId")

 Dim req As New WebClient()
 Dim response As HttpResponse = HttpContext.Current.Response
 response.Clear()
 response.ClearContent()
 response.ClearHeaders()
 response.Buffer = True
 response.AddHeader("Content-Disposition", "attachment;filename=" + Server.MapPath(strURL) + "")
 Dim data As Byte() = req.DownloadData(Server.MapPath(strURL))
 response.BinaryWrite(data)
 response.[End]()

推荐答案

而不是直接将其写入响应流，请尝试以下操作.

Instead of writing it directly to the response stream, try the following.

Dim downloadURL As String = String.Format("window.open('download.aspx?fileID={0}','_blank','toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=400, height=400');", lnkAttach.Text)

ScriptManager.RegisterClientScriptBlock(Me, Me.GetType(), "download-file", downloadURL, True)  

试试这个，让我知道它是否有效.

Try this and let me know if it works.

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