如何使用下拉列表填充/输入数据？
这是我现有的代码：
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True"
DataSourceID="dsEmployees" DataTextField="Last_First"
DataValueField="EmpNum"
onselectedindexchanged="DropDownList1_SelectedIndexChanged">
</asp:DropDownList>
Here's my existing code:
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True"
DataSourceID="dsEmployees" DataTextField="Last_First"
DataValueField="EmpNum"
onselectedindexchanged="DropDownList1_SelectedIndexChanged">
</asp:DropDownList>
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评论（2）
DropDownList 最终在 HTML 中呈现为
DropDownLists end up being rendered as
<select>tags in HTML. These do not allow for data entry of new values. If you're looking for something similar to a ComboBox (a textbox and a listbox combined into the same control) then you'll need to find a third-party javascript implementation that is acceptable to you; there is no control which provides that functionality in HTML or the .net framework.尤尼塔，你需要更多活动部件。 例如，您需要一个要绑定的数据源。
查看 ASP.NET 网站上的数据访问教程：
http://www. asp.net/learn/data-access/
Yonita, you need some more moving parts. You need a datasource to bind to, for instance.
Have a look at the Data Access tutorials on the ASP.NET website:
http://www.asp.net/learn/data-access/