我只是想知道如何在asp.net mvc 2中为下拉列表启用客户端验证。 方案是下拉列表将包含“选择”项目和其他项目列表..,用户应选择其他项目......当用户未选择其他项目时,应启动验证
public class FacilityBulletinModel
{
[DisplayName("Select a Facility")]
public List<SelectListItem> ListFacility { get; set; }
[DisplayName("Facility Bulletin")]
[Required(ErrorMessage = "Please create a Bulletin")]
public string FacilityBulletin { get; set; }
[DisplayName("Active")]
public bool Active { get; set; }
[HiddenInput(DisplayValue = false)]
public int SiteId { get;set;}
}
在我看来
Select Facility <span class="err">*</span><br />
<%=Html.DropDownListFor(model => model.ListFacility, null, new {onChange="updateSiteId()" })%>
<span class="err"> <%= Html.ValidationMessageFor(model => model.ListFacility) %></span>
答案 0 :(得分:2)
首先,如果需要下拉列表,请将[Required]属性添加到模型属性中。
然后,在视图顶部的某处启用客户端验证:
<% Html.EnableClientValidation() %>
然后只需添加验证消息:
<div class="inputField">
<%= Html.LabelFor(model => model.property)%>
<%= Html.DropDownListFor(model => model.property, (SelectList)ViewData["myselelectlist"])%>
<%= Html.ValidationMessageFor(model => model.property)%>
</div>
(这需要加载MicrosoftMvcValidation.js)