exercise1.aspx

来自「asp入门到精通的源代码」· ASPX 代码 · 共 35 行

ASPX
35
字号
<%@ Page Language="VB" %>
<%@ Import namespace="System.IO" %>

<script runat="server">
   sub DisplayFile(obj as object, e as eventargs)
      dim strFile as string = tbFile.Text
      dim objReader as StreamReader
      
      if strFile <> "" then
         if File.Exists(strFile) then
            objReader = new StreamReader(strFile)
            
            lblMessage.Text = "<pre>"
            while objReader.Peek > -1
               lblMessage.Text += Server.HTMLEncode _
                  (objReader.ReadLine) & "<br>"
            end while
            lblMessage.Text += "</pre>"
            
            objReader.Close
         end if
      end if
   end sub
</script>

<html><body>
   <form runat="server">
      <asp:TextBox id="tbFile" runat="server"
         OnTextChanged="DisplayFile"
         AutoPostBack=true /><p>
      
      <asp:Label id="lblMessage" runat="server"
         MaintainState=false/>
   </form>
</body></html>

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