DIV CSS 佈局教程網

現在的需求是：下拉框中要是選擇加盟商讓其繼續選擇學校，要是選擇平台管理員則不需要選擇學校。隱藏選擇下拉列表。

選擇枚舉值：

/// <summary>
/// 平台角色
/// </summary>
public enum AdministratorRole
{
 [Display(Name = "平台管理員")]
 PlatformAdministrator = 1,
 [Display(Name = "加盟商")]
 JoiningTrader = 10
}

代碼：

<div class="form-group">
  @Html.LabelFor(x => x.AdministratorRole, new { @class = "col-sm-2 control-label" })
  <div class="col-sm-8">
   @Html.EnumDropDownListFor(x => x.AdministratorRole, new { @class = "form-control", onChange = "showSchool(this.value)", placeholder = Html.DisplayNameFor(x => x.AdministratorRole) })
  </div>
  <div class="col-sm-2">
   <div class="help-block">@Html.ValidationMessageFor(x => x.AdministratorRole)</div>
  </div>
 </div>
 <div class="form-group" style="display:none" id="schoolSelect">
  @Html.LabelFor(x => x.SchoolId, new { @class = "col-sm-2 control-label" })
  <div class="col-sm-8">
   @Html.DropDownListFor(x => x.SchoolId, Model.Schools, new { @class = "form-control", placeholder = Html.DisplayNameFor(x => x.SchoolId) })
  </div>
  <div class="col-sm-2">
   <div class="help-block">@Html.ValidationMessageFor(x => x.SchoolId)</div>
  </div>
 </div>

    先讓學校列表隱藏，style=”display:none”;效果和下圖一樣。我們利用下拉框的onChange事件來讓其執行設定的方法showSchool(),這裡面的參數是我們選擇的值，this代表的AdministratorRole。

js代碼：

 <script type="text/javascript"> 
 function showSchool(v){  
  if (10 == v) {
   document.getElementById("schoolSelect").style = "display:inline";
  } else {
   document.getElementById("schoolSelect").style = "display:none";
  }
 }
</script>

這樣就可以了。

效果：

以上就是本文的全部內容，希望對大家有所幫助，同時也希望多多支持！