在layer弹出层中通过ajax返回html拼接字符串填充数据的方法

 @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> }

 //填充角色数据并显示 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Id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 }); }

success: function (layero, index) {     //填充数据     $.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('网络请求失败！', {        title: '提示框',        icon: 0,       });      }     });    },