后台

List<SelectListItem>Countyitems=newList<SelectListItem>(){//newSelectListItem(){Text="--请选择--",Value="",Selected=false},newSelectListItem(){Text="钦北区",Value="0",Selected=true},newSelectListItem(){Text="钦南区",Value="1",Selected=false},newSelectListItem(){Text="灵山县",Value="2",Selected=false},newSelectListItem(){Text="浦北县",Value="3",Selected=false},};List<SelectListItem>Cityitems=newList<SelectListItem>(){//newSelectListItem(){Text="--请选择--",Value="",Selected=false},newSelectListItem(){Text="钦州市",Value="0",Selected=true}};List<SelectListItem>Provinceitems=newList<SelectListItem>(){//newSelectListItem(){Text="--请选择--",Value="",Selected=false},newSelectListItem(){Text="广西省",Value="0",Selected=true}};SelectListCountyList=newSelectList(Countyitems,"Value","Text",0);SelectListCityList=newSelectList(Cityitems,"Value","Text",0);SelectListProvinceList=newSelectList(Provinceitems,"Value","Text",0);ViewData["County"]=CountyList;ViewData["City"]=CityList;ViewData["Province"]=ProvinceList;


前台

<tr><td>@Html.LabelFor(m=>m.Province)</td><td>@Html.DropDownList("Province",ViewData["Province"]asSelectList,new{style="width:153px"})@Html.ValidationMessageFor(m=>m.Province)</td></tr><tr><td>@Html.LabelFor(m=>m.City)</td><td>@*@Html.TextBoxFor(m=>m.City)*@@Html.DropDownList("City",ViewData["City"]asSelectList,new{style="width:153px"})@Html.ValidationMessageFor(m=>m.City)</td></tr><tr><td>@Html.LabelFor(m=>m.County)</td><td>@*@Html.TextBoxFor(m=>m.County)*@@Html.DropDownList("County",ViewData["County"]asSelectList,new{style="width:153px"})@Html.ValidationMessageFor(m=>m.County)</td></tr>