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我試圖將一個小問題減到最小，所以我創建了新的示例web項目; VS中的mvc-empty。我在Home控制器中創建了一個名爲「Index」的視圖。索引視圖代碼：在asp.net中提交Ajax.BeginForm後，jQuery代碼無法正常工作mvc
@model WebApplication16.ViewModels.Home.IndexVM
@{
ViewBag.Title = "Index";
}
@Html.Partial("~/Views/Home/_Orders.cshtml", Model.Orders)
@section scripts{
<script src="~/Scripts/jquery.validate.js"></script>
<script src="~/Scripts/jquery.validate.unobtrusive.js"></script>
<script src="~/Scripts/jquery.unobtrusive-ajax.js"></script>
<script>
$("#Type").change(function() {
$('#order-current > img').remove();
var currentOrder = "#Type_" + $("#Type").find('option:selected').text();
var $img = $(currentOrder).clone();
$img.removeClass("hidden");
$("#order-current").append($img);
$("#ajax-form").submit();
});
</script>
}
首頁控制器代碼：
public class HomeController : Controller
{
[HttpGet]
public ActionResult Index()
{
IndexVM dataVM = new IndexVM();
GetControlsDataSource(dataVM.Orders);
return View(dataVM);
}
private static void GetControlsDataSource(OrdersVM dataVM)
{
List<SelectListItem> typeControlDataSource = new List<SelectListItem>();
foreach (var en in Enum.GetValues(typeof(TypeEnum)))
{
SelectListItem item = new SelectListItem();
item.Text = en.ToString();
item.Value = ((int)en).ToString();
typeControlDataSource.Add(item);
}
dataVM.TypeControlDataSource = typeControlDataSource;
}
[HttpPost]
public ActionResult Pay(IndexVM dataVM)
{
GetControlsDataSource(dataVM.Orders);
if (ModelState.IsValid)
{
dataVM.Orders.Info = "Info bla bla bla";
return PartialView("~/Views/Home/_Orders.cshtml", dataVM.Orders);
}
else
{
return View(dataVM);
}
}
}
還有一個名爲「_Orders」的局部圖，這是在_Orders局部視圖的指數view.The代碼呈現：
@model WebApplication16.ViewModels.Home.OrdersVM
@using (Ajax.BeginForm("Pay", "Home", new AjaxOptions
{
InsertionMode = InsertionMode.Replace,
UpdateTargetId = "result",
}, new { id = "ajax-form" }))
{
<div id="result">
<div id="order-current">
</div>
<div>
@Html.TextBoxFor(x => x.Name, new { @class = "form-control", style = "margin-top:10px;", id = "Name" })
@Html.ValidationMessageFor(x => x.Name)
</div>
<div>
@Html.DropDownListFor(x => x.Type, Model.TypeControlDataSource, new { @class = "form-control", style = "margin-top:10px;", id = "Type", })
@Html.ValidationMessageFor(x => x.Type)
</div>
<div>
<p>@Model.Info</p>
</div>
<button type="submit" class="btn btn-primary" name="ok"> OK</button>
</div>
}
<div id="orders-container">
<img id="Type_I" src="~/App_Images/Type_I.png" class="img-responsive hidden" />
<img id="Type_II" src="~/App_Images/Type_II.png" class="img-responsive hidden" />
<img id="Type_III" src="~/App_Images/Type_III.png" class="img-responsive hidden"/>
</div>
Index model is described by class IndexVM:
public class IndexVM
{
public IndexVM()
{
this.Orders = new OrdersVM();
}
public OrdersVM Orders { get; set; }
}
_Orders模型由類OrdersVM描述：
public class OrdersVM
{
[Required]
public string Name { get; set; }
public string Info { get; set; }
[Required]
public TypeEnum Type { get; set; }
public List<SelectListItem> TypeControlDataSource { get; set; }
}
public enum TypeEnum
{
I,
II,
III
}
在使用id =「Type」的DropDownListFor控件中更改值後，來自隱藏字段的圖片應該通過位於Index視圖中的jquery代碼注入到id =「order-current」的容器中，並且在該操作之後，ajax-form應該提交。它工作正常，但是從HomeController中調用
return PartialView("~/Views/Home/_Orders.cshtml", dataVM.Orders);
後，現場信息正確更新，但是從「訂單流」的div容器注入的畫面消失了。我嘗試使用F12按鈕查看Google Chrome中出現了什麼問題，並且沒有錯誤，但在「browserLink」腳本中出現了無限循環。我無法解釋爲什麼。 我只想在提交ajax表單後在id =「order-current」容器中看到注入的圖片。如何做到這一點，我做錯了什麼？