(一). 示例图片
(二). 详细代码
1. 页面前台代码
1![Asp.net 2.0 一个简单的联动DropDownList示例(示例代码下载) [zhuan :D]](/default/index/img?u=L2RlZmF1bHQvaW5kZXgvaW1nP3U9YUhSMGNITTZMeTkzZDNjdVkyNWliRzluY3k1amIyMHZTVzFoWjJWekwwOTFkR3hwYm1sdVowbHVaR2xqWVhSdmNuTXZUbTl1WlM1bmFXWT0= "Asp.net 2.0 一个简单的联动DropDownList示例(示例代码下载) [zhuan :D]")
<body>
2 <form id="form1" runat="server">
3 <div>
4 <asp:Panel ID="Panel2" runat="server" BackColor="#FFC080" Font-Size="X-Large"
5 ForeColor="#C04000" Height="50px" Width="387px">
6 DropDownList 联动示例：</asp:Panel>
7 <asp:Panel ID="Panel1" runat="server" BackColor="#C0C0FF" Height="170px" Width="387px">
8 <br />
9 请选择类别:<br />
10 <br />
11
12 <asp:DropDownList ID="ddl1" runat="server">
13 </asp:DropDownList>
14 <asp:DropDownList ID="ddl2" runat="server">
15 </asp:DropDownList>
16 <asp:DropDownList ID="ddl3" runat="server">
17 </asp:DropDownList> <br />
18 <br />
19
20 <C1:RelatedList id="rl1" runat="server"></C1:RelatedList>
21 <asp:Button ID="btOK" runat="server" OnClick="Button1_Click" Text="取值" Width="67px" />
22 </asp:Panel>
23 </div>
24 </form>
25</body>
26
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2.页面后台代码
1protected void Page_Load(object sender, EventArgs e)
2![]()
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(三).示例代码下载