到Response.End想（）

Question

我嘗試下載後file.My代碼來刪除文件的另一種方法是

private void DownloadZipFileDialogue(string strZipFilePath) 
{ 
    Response.ContentType = "application/octet-stream"; 
    Response.AppendHeader("Content-Disposition", "attachment; filename=" + Path.GetFileName(strZipFilePath)); 
    Response.TransmitFile(strZipFilePath); 
    Response.End(); 
    //File.Delete(strZipFilePath); 
} 

我知道Response.End();後沒有代碼塊execute.If我試圖刪除文件befor Response.End(); zip文件我試過每一個地方。我嘗試：
ApplicationInstance.CompleteRequest();
而不是
Response.End();。
但我得到相同的result.zip文件已損壞。我看到這個Is Response.End() considered harmful?但無法找到解決方案。任何想法來解決問題。謝謝。

Answer 1

你可以試試這個，

private void DownloadZipFileDialogue(string strZipFilePath) 
{ 
    Response.ContentType = "application/octet-stream"; 
    Response.AppendHeader("Content-Disposition", "attachment; filename=" + Path.GetFileName(strZipFilePath)); 

    using(Stream input = File.OpenRead(strZipFilePath)){ 

     /// .NET 4.0, use following line if its .NET 4 project 
     input.CopyTo(Response.OutputStream); 

     /// .NET 2.0, use following lines if its .NET 2 project 
     byte[] buffer = new byte[4096]; 
     int count = input.Read(buffer,0,buffer.Length); 
     while(count > 0){ 
      Response.OutputStream.Write(buffer,0,count); 
      count = input.Read(buffer,0,buffer.Length); 
     } 
    } 

    File.Delete(strZipFilePath); 
}