asp.net用mvc时，视图中的dropdownlist怎么实现？

Question

要写一个下拉框单选省份
网上找到些说法
但是代码都不全
整了好久没整好
谁能给个例子
最好从model、controller、view三方面全方位解析

Answer 1

select   联动 用 ajax 

Answer 2

<script runat="server">    protected void cboBussiness_Load(object sender, EventArgs e)
    {
        cboBussiness.DataSource = new string[] { "药品生产", "药品批发", "药品零售", "器械生产", "器械批发", "器械零售" };
        cboBussiness.DataBind();
        if (Model != null)
        {
            cboBussiness.Text = Model.Bussiness;
            if (!Model.CancelDate.Equals(DateTime.MinValue))
                txtCancelDate.Text = Model.CancelDate.ToShortDateString();
            if (!Model.GspDate.Equals(DateTime.MinValue))
                txtGspDate.Text = Model.GspDate.ToShortDateString();
            if (!Model.GspPeriod.Equals(DateTime.MinValue))
                txtGspPeriod.Text = Model.GspPeriod.ToShortDateString();
            if (!Model.IssuedDate.Equals(DateTime.MinValue))
                txtIssuedDate.Text = Model.IssuedDate.ToShortDateString();
            if (!Model.LicensePeriod.Equals(DateTime.MinValue))
                txtLicensePeriod.Text = Model.LicensePeriod.ToShortDateString();
        }
    }
</script>
  <tr>
                <td style="width: 100px">
                    经营范围：
                </td>
                <td style="width: 100px">
                    <asp:ComboBox ID="cboBussiness" runat="server" AutoPostBack="false" DropDownStyle="DropDown"
                        OnLoad="cboBussiness_Load" Width="88%">
                    </asp:ComboBox>
                    <%: Html.ValidationMessageFor(model => model.Bussiness) %>
                </td>
            </tr>