📄 demo-howaspnetcodeworks.aspx

📁 asp.net1.1入门经典C＃.2003

💻 ASPX

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<%@ Page Language="c#" %>
<script runat="server">

    void Page_Load()
    {
      if(Page.IsPostBack)
        lblMessage.Text = "You have selected " + DropList1.SelectedItem.Value;
    }

</script>
<html>
    <head>
    </head>
    <body>
        <form runat="server">
        <asp:DropDownList ID="DropList1" runat="server">
        <asp:listitem>apple</asp:listitem>
        <asp:listitem>banana</asp:listitem>
        <asp:listitem>carrot</asp:listitem>
        <asp:listitem>durian</asp:listitem>
        </asp:DropDownList><br/>
        <asp:Button runat="server" Text="Button"></asp:Button><br/>
        <asp:Label ID="lblMessage" runat="server"/>
        </form>
    </body>
</html>

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