I've read a bunch of posts here on SO re: this and still don't get it.
我已经在这里阅读了很多帖子：这个，但仍然没有得到它。
I have a view with a partial view paging control in it that needs access to the same model as the parent view.
我有一个视图，其中部分视图分页控件需要访问与父视图相同的模型。
Parent View:
父视图：
model IEnumerable<Models.ExchangeBrowseViewModel>
@{
ViewBag.Title = metaExchange.Index_PageTitle;
}
@section styles
{
<link rel="stylesheet" type="text/css" href="/incl/css/bp-default.css" />
<link rel="stylesheet" type="text/css" href="/incl/css/bp-component.css" />
<link rel="stylesheet" type="text/css" href="/incl/css/paging.css" />
}
<hgroup>
<h2>@metaExchange.Index_InlineTitle</h2>
<h3>@ViewBag.Message</h3>
</hgroup>
<div class="container">
<div class="row">
<div class="col-md-2" style="border: 1px solid #000000">
@Html.Partial("_ItemsSearch_BasicPartial");
</div>
<div class="col-md-10">
@Html.Action("Pagination", new {showWell=false, model=Model});
Pagination Action:
分页行动：
[AllowAnonymous]
[ChildActionOnly]
public ActionResult Pagination(ExchangeBrowseViewModel model, bool showWell)
{
ViewBag.ShowWell = showWell;
return PartialView("_ItemsList_Pagination", model);
}
Pagination Partial View
分页部分视图
@model IPagedList<Models.ExchangeBrowseViewModel>
<div class="mvcpagination">
@Html.Raw(Ajax.Pager(
new Options
{
PageSize = Model.PageSize,
TotalItemCount = Model.TotalItemCount,
CurrentPage = Model.PageNumber,
ItemTexts = new ItemTexts() {Next = ">>", Previous = "<<", Page = ""},
ItemIcon = new ItemIcon() {First = "icon-backward", Previous = "icon-chevron-left", Next = "icon-chevron-right", Last = "icon-forward"},
TooltipTitles = new TooltipTitles() {Next = "Next", Previous = "Previous", Page = "Page {0}."},
Size = Size.normal,
Alignment = Alignment.right,
IsShowControls = true,
IsShowFirstLast = true,
CssClass = "light-theme"
},
new AjaxOptions
{
UpdateTargetId = "grid-list",
OnBegin = "beginPaging",
OnSuccess = "successPaging",
OnFailure = "failurePaging"
}, new {controller = "Requests", action = "Index", requestTitle = ViewData["requestTitle"]}))
@if (ViewBag.ShowWell)
{
<div class="well">
Showing <span class="badge badge-success">@Model.ItemStart</span> to <span class="badge badge-success">@Model.ItemEnd</span>
of <span class="badge badge-info">@Model.TotalItemCount</span> entries</div>
}
</div>
The problem is the model is always null inside the action method and therefore the partial throw a NullReference exception trying to access model properties.
问题是模型在action方法中总是为null，因此部分抛出一个尝试访问模型属性的NullReference异常。
1 个解决方案
#1
1
You pass ExchangeBrowseViewModel in your Pagination action and binds it to wrong type in controller method.
您在Pagination操作中传递ExchangeBrowseViewModel并将其绑定到控制器方法中的错误类型。
You pass the whole IEnumerable<Models.ExchangeBrowseViewModel> model from parent view to action and want to get ExchangeBrowseViewModel. But model binder can't find appropriate data, that's why it's null.
您将整个IEnumerable
#1
1
You pass ExchangeBrowseViewModel in your Pagination action and binds it to wrong type in controller method.
您在Pagination操作中传递ExchangeBrowseViewModel并将其绑定到控制器方法中的错误类型。
You pass the whole IEnumerable<Models.ExchangeBrowseViewModel> model from parent view to action and want to get ExchangeBrowseViewModel. But model binder can't find appropriate data, that's why it's null.
您将整个IEnumerable