可点击的链接未出现在生成的锚标记的页面上

我有一些 .js 代码生成以下锚标记：

<a name="link_274_4" id="link_274" onserverclick="DownloadInspection_Click" runat="server">2017-09-10</a>

我从 IE 的 DOM Explorer 中剪切并粘贴了它。

该链接在我显示的页面上不可单击。

这是我希望它运行的 vb.net：

Sub DownloadInspection_Click(ByVal sender As Object, ByVal e As EventArgs)
    Dim button As Button = DirectCast(sender, Button)
    Dim pk As Integer = CInt(button.ID.Replace("link_", ""))

    Dim FileNamePrefix As String = CStr(pk)

    Dim PreApprovalDir = "C:\\Data"

    Dim di As New DirectoryInfo(PreApprovalDir)
    Dim fiArr As FileInfo() = di.GetFiles()
    Dim fri As FileInfo
    For Each fri In fiArr
        If fri.Name.StartsWith(FileNamePrefix) Then
            Exit For
        End If
    Next fri


    Response.Clear()
    Response.AddHeader("Content-Disposition", "attachment; filename=" + fri.Name)
    Response.ContentType = "application/octet-stream"

    Response.AddHeader("Content-Length", fri.Length)
    Response.WriteFile(fri.FullName)
    Response.End()

End Sub

我本来希望 VB 需要一个Handles条款，但这个 SO 帖子没有它：从 https://stackoverflow.com/questions/7548129/running-a-code-behind-routine-from-an-a-href/7548147#7548147

锚标记是在表中生成的，因此我不知道 Handles 子句的代码是什么。