response.transmitfile更改文件名

Question

我有以下代码

    Protected Sub Button1_Click(sender As Object, e As System.EventArgs) Handles submit1.Click

    Dim filename As String = "C:\pdfs\" + TextBox1.Text
    Response.TransmitFile(filename)

End Sub

the是包含扩展名的pdf的名称。THis运行良好，除了pdf的文件名被更改为我调用它的网页的名称。但c:\pdfs中的pdf名称保持不变。

我能阻止它改变名字吗。

Answer 1

将Response.TransmitFile更改为

Dim fileInfo As FileInfo = new FileInfo("C:\pdfs\" + TextBox1.Text)

 Response.ContentType = "application/octet-stream";
 Response.AddHeader("Content-Disposition", String.Format("attachment;filename=\"{0}\"", TextBox1.Text));
 Response.AddHeader("Content-Length", fileInfo.Length.ToString());
 Response.WriteFile(fileInfo.FullName);
 Response.End();

Answer 2

如果您愿意，您可以继续使用Transferfile，但以这种方式。

FileInfo file = new FileInfo(filePath);

//LINE1:在标题和名称中添加“文件名”和附件，这将强制显示打开/cance/保存对话框

response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);

//在响应头部中添加文件大小

response.AddHeader("Content-Length", file.Length.ToString());

//设置ContentType

response.ContentType = file.Extension.ToLower();

//将文件写入响应中(TransmitFile是针对ASP.NET 2.0的在ASP.NET 1.1中，您必须改用WriteFile )

response.TransmitFile(file.FullName);