1，在給一個layer彈出層做checkbox自動選中時，ViewBag傳遞的時object類型，用不了lambda表達(dá)式，代碼如下，

 @foreach (var perm in ViewBag.allPerms)
 {
  <input type="checkbox" id="permissionIds_@perm.Id" 
   name="PermissionIds" value="@perm.Id" 
 checked="@(ViewBag.RolePerms.Select(r=>r.Id).Contains(perm.Id))"/>
   <label for="permissionIds_@perm.Id">@perm.Name</label>
 }

2，于是在彈出層就不寫foreach循環(huán)遍歷checkbox，直接在點(diǎn)擊編輯事件時的彈出層中 ‘添加層彈出后的成功回調(diào)方法success" ，在里面通過ajax填充數(shù)據(jù)

Control中Edit方法獲取數(shù)據(jù)

 //填充角色數(shù)據(jù)并顯示
 public ActionResult Edit(long roleId = 0)
 {
  if (roleId == 0)
  {
   return Json(new JsonData { State = 0, ErrorMsg = "角色不存在！" });
   }
   var role = RoleService.GetById(roleId);
   if (role==null)
  {
   return Json(new JsonData { State = 0, ErrorMsg = "角色I(xiàn)d不存在！" });
   }
   var allPerms = PermissionService.GetAll();
   var rolePerms = PermissionService.GetByRoleId(roleId);
   RoleEditGetModel model = new RoleEditGetModel();
   model.RolePerms = rolePerms;
   model.AllPerms = allPerms;
   return Json(new JsonData { State = 1, Data = model });
 }

View中Layer彈出層success方法

success: function (layero, index) {
     //填充數(shù)據(jù)
     $.ajax({
      url: "/Role/Edit?roleId=" + id,
      type: "post",
      dataType: "json",
      success: function (res) {
       if (res.State == 1) {
var html = "";
var bool = false;
for (var i = 0; i < res.Data.AllPerms.length; i++) {
 bool = false;
 for (var j = 0; j < res.Data.RolePerms.length; j++) {
  if (res.Data.RolePerms[j].Id == res.Data.AllPerms[i].Id) {
   bool = true;
   break;
  }
 }
 html += " <input " + (bool ? "checked" : "") + " type="checkbox" id="permissionIds_" + res.Data.AllPerms[i].Id + "" name="PermissionIds" value="" + res.Data.AllPerms[i].Id + "" /> 
 <label for="permissionIds_" + res.Data.AllPerms[i].Id + "">" + res.Data.AllPerms[i].Name + "</label>"
}
$("#formValue").html(html);
       }
      },
      error: function () {
       layer.alert("網(wǎng)絡(luò)請求失敗！", {
title: "提示框",
icon: 0,
       });
      }
     });
    },

總結(jié)

以上所述是小編給大家介紹的在layer彈出層中通過ajax返回html拼接字符串填充數(shù)據(jù)，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復(fù)大家的。在此也非常感謝大家對網(wǎng)站的支持！