.net获取select控件中的文本内容

<select id="SecType" style="z-index: 104; left: 93px; width: 151px; position: absolute;
            top: 27px" runat="server">
            <option selected="selected" value="0">一室一厅</option>
            <option  value="1">二室一厅</option>
            <option  value="2">二室二厅</option>
            <option  value="3">三室二厅</option>
        </select>
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string houseType = "";

        foreach(string elem in Request.get)
        {
            if (elem.Contains("SecType"))
            {
           houseType=Request[elem];
           break;
            }
        }
   上面只能获取value值,如何才能获取"一室一厅"