📄 vote.aspx

📁 asp.net经典案例资料

💻 ASPX

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<%@ Page Debug="true" %>
<%@ Import Namespace="System.IO" %>
<html>
  <head>
    <title>投票结果</title>
    <script language="C#" runat="server" >
    void Page_Load()
    {
      Hashtable result = new Hashtable();
      StreamReader reader1 = null;
      StreamReader reader2 = null;
      string line;

      try {
        reader1 = new StreamReader(Server.MapPath("candidate.txt"));
      }
      catch
      {
        Response.Write("Fail to open candidate.txt");
        return;
      }

      try
      {
        while((line=reader1.ReadLine()) != null)
          result.Add(line, 0);
      }
      catch(ArgumentException)
      {
        Response.Write("Invalid candidate.txt");
        return;
      }
      finally
      {
        reader1.Close();
      }

      try{
        reader2 = new StreamReader(Server.MapPath("result.txt"));
      }
      catch
      {
        Response.Write("Fail to open result.txt");
        return;
      }

      try
      {
        while((line=reader2.ReadLine()) != null)
          result[line] = (int)result[line] + 1;
      }
      catch(NullReferenceException)
      {
        Response.Write("Invalid result.txt");
        return;
      }
      finally
      {
        reader2.Close();
      }

      Repeater1.DataSource = result;
      Repeater1.DataBind();
    }
    </script>
  </head>

  <body>
  <form id="form1" runat="server">
    <h3>投票结果</h3>
    <asp:Repeater id="Repeater1" runat="server">
      <HeaderTemplate>
        <table border="1">
        <tr><td>候选人</td><td>得票数</td></tr>
      </HeaderTemplate>
      <ItemTemplate>
        <tr><td>
        <%# ((DictionaryEntry)Container.DataItem).Key %>
        </td><td>
        <%# ((DictionaryEntry)Container.DataItem).Value %>
        </td></tr>
      </ItemTemplate>
      <FooterTemplate>
        </table>
      </FooterTemplate>
    </asp:Repeater>
  </form>
  </body>
</html>

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