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HTML5在下拉式選單多了一個群組功能
ASP.NET DropDownList
1.把DropDownListAdapter.cs放到App_Code
2.把BrowserFile.browser放到App_Browser
3. aspx
<asp:DropDownList ID="ddl1" runat="server"></asp:DropDownList>
<asp:Button ID="btn_get_value" runat="server" Text="抓值" OnClick="btn_get_value_Click" />
4. cs
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| protected void Page_Load(object sender, EventArgs e) | |
| { | |
| ListItem item1 = new ListItem("BENZ","1"); | |
| item1.Attributes["OptionGroup"] = "Germany"; | |
| ListItem item2 = new ListItem("BMW", "2"); | |
| item2.Attributes["OptionGroup"] = "Germany"; | |
| ListItem item3 = new ListItem("HONDA", "3"); | |
| item3.Attributes["OptionGroup"] = "Japan"; | |
| ListItem item4 = new ListItem("TOYOTA", "4"); | |
| item4.Attributes["OptionGroup"] = "Japan"; | |
| ddl1.Items.Add(item1); | |
| ddl1.Items.Add(item2); | |
| ddl1.Items.Add(item3); | |
| ddl1.Items.Add(item4); | |
| } | |
| protected void btn_get_value_Click(object sender, EventArgs e) | |
| { | |
| Response.Write(ddl1.SelectedItem.Text); | |
| } |
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