我已经通过Viewbag将List<AdminUsers>
传递给视图,然后将该列表分配给javascript var并循环遍历。
但是,尽管在视图上进行了调试,但在视图上进行调试的for循环却从未循环过。
循环的目的是检查adminUserList
中的任何用户是否与当前登录的用户匹配。 currentUser
也是init,因此可以排除该值为null的情况。
为了调试的原因。我测试了Viewbag.AdminUserList
在它所在的控制器中是否已分配并初始化。我还在此列表的视图中设置了一个警报,它是init。
题:
有谁知道为什么下面的for loop
没有在javascript中调用?
这是调试期间js adminUserList的值:
var adminUserList = [{"AdminID":1,"AdminDisplayName":"brianb","AdminEmailAddress":"[email protected]"},{"AdminID":2,"AdminDisplayName":"wendy","AdminEmailAddress":"[email protected]"}];
码:
循环Java语言-
<script>
var currentUser = '@ViewBag.CurrUser';
var adminUserList = @Html.Raw(Json.Encode(ViewBag.AdminUserList));
$(document).ready(function () {
var historyTable = $('#table').DataTable({
"order": [[6, "desc"]]
});
//Loop through each of the admin users, if any of
//the admin users match the current user, hide the delete column.
for (var i = 0; i < adminUserList.Count; i++)
{
if (currentUser == adminUserList.AdminDisplayName[i]) {
//hide the delete table option from a non admin user
historyTable.columns([9]).visible(false);
}
}
});
</script>
控制器索引方法-
public ActionResult Index()
{
HistoryDAL sqlConnection = new HistoryDAL();
List<AdminUsers> adminList = sqlConnection.GetAdminUsers();
//Get the current user
var components = User.Identity.Name.Split('\\');
var userName = components.Last();
//Assign current user and admin list to viewbag
ViewBag.CurrUser = userName;
ViewBag.AdminUserList = adminList;
return View("Index");
}
模型-AdminUsers:
public class AdminUsers
{
public int AdminID { get; set; }
public string AdminDisplayName { get; set; }
public string AdminEmailAddress { get; set; }
}
最佳答案
在行中
for (var i = 0; i < adminUserList.Count; i++)
您需要使用JavaScript
adminUserList.length
而不是C#adminUserList.Count
,因为adminUserList
是JavaScript变量,而不是C#。关于javascript - 如何遍历键入的Viewbag列表?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/37436472/