javascript - 通过 asp.net 在 javascript 中打开多个弹出窗口

Question

我有一个 sql 数据读取器，里面有一堆路径。我需要在浏览器上打开多个弹出窗口/多个选项卡。所以我尝试循环遍历我的数据读取器并执行 ClientScript.RegisterStartupScript但代码完成后没有任何内容打开...

这是我的代码:

While r.Read()
            ClientScript.RegisterStartupScript(Me.GetType, "popup" + counter.ToString(), "window.open('" + CType(r("AttachmentLink"), String) + "','_blank' + new Date().getTime(),'menubar=no')", True)
            counter += 1
        End While

我放入 watch ，我的阅读器确实包含我想要的数据，但没有打开弹出窗口:(。

编辑

以下是我数据库的 AttachmentLink 列中的一些示例数据:

\\myserver\myfolder\1.pdf
\\myserver\myfolder\mydoc.doc
\\myserver\myfolder\myimage.jpg

实际链接是存储在我们网络上的本地文件服务器...

Answer 1

尝试将 JavaScript 更改为以下语法:

window.open(url, '_blank', 'menubar=no')

如果这不起作用，请尝试先创建脚本，如下所示:

Dim sb as New StringBuilder()
Do While r.Read()
    sb.AppendLine("window.open('" & r("AttachmentLink") & "', '_blank', 'menubar=no');")
Loop
ClientScript.RegisterStartupScript(Me.GetType(), "popup", sb.ToString(), True)

我也注意到的一件事是你在 JavaScript 代码中漏掉了一个分号，有时它会把事情搞得非常糟糕。

编辑添加

回答评论时，您可以使用如下内容:

sb.AppendLine("window.open('" & LoadPageLink(r("AttachmentLink")) & "' ... )")

Function LoadPageLink(path As String) As String
    Return String.Format("loadFile.aspx?p={0}", Server.UrlEncode(path))
End Function

----- LoadFile.aspx

Sub Page_Load(sender as Object, e as EventArgs)
    '*
    '* OK The worst part here is to detect the content-type of the file
    '* because it is being served by a proxy page, instead of directing 
    '* the browser to the actual file, which would make the IIS gess the
    '* content type and send the correct one. 
    '* 
    '* Getting the correct content type is beyond the scope of this answer
    '*

    Dim buffer as Byte(1024)

    Using (stream as New FileStream(Request("p")))
        Do While True
           Dim read = stream.Read(buffer, 0, buffer.Length)
           If (read > 0) Then
               Response.OutputStream.Write(buffer, 0, read)
           Else
               Exit Do
           End If
        End Do
    End Using

End Sub