c# - 打开一个新窗口 ASP.net 代码隐藏

Question

我有以下代码:

protected void Page_Load(object sender, EventArgs e)
{
        byte[] buffer = null;
        buffer = File.ReadAllBytes("C:\\myfile.pdf");
        HttpContext.Current.Response.ContentType = "application/pdf";
        HttpContext.Current.Response.OutputStream.Write(buffer, 0, buffer.Length);
        HttpContext.Current.Response.End();
}

我想在页面加载来自的当前页面旁边为 pfd 文件打开第二个窗口。

Answer 1

为此，您需要将 PDF 上传到应用程序中可以呈现给用户的路径，然后注册一些 javascript 以在新窗口中打开 PDF:

protected void Page_Load(object sender, EventArgs e)
{
    byte[] buffer = null;
    buffer = File.ReadAllBytes("C:\\myfile.pdf");
    //save file to somewhere on server, for example in a folder called PDFs inside your application's root folder
    string newFilepath = Server.MapPath("~/PDFs/uploadedPDF.pdf");
    System.IO.FileStream savedPDF = File.Create(newFilepath);
    file.Write(buffer, 0, buffer.Length);
    file.Close();

    //register some javascript to open the new window
    Page.ClientScript.RegisterStartupScript(this.GetType(), "OpenPDFScript", "window.open(\"/PDFs/uploadedPDF.pdf\");", true);
}