我创建了以下自定义ActionResult，它返回多个部分视图。
public class MultiplePartialViewsResult : ActionResult
{
private const string Separator = "-";
private PartialViewResult[] _partialViews;
public MultiplePartialViewsResult(params PartialViewResult[] partialViews)
{
_partialViews = partialViews;
}
public override void ExecuteResult(ControllerContext context)
{
foreach (var partialView in _partialViews)
{
partialView.ExecuteResult(context);
context.HttpContext.Response.Output.Write(Separator);
}
}
}
然后我使用它如下：
return new MultiplePartialViewsResult(
PartialView("~/Views/RowSumView.cshtml",new List<double>() { 1.0 }),PartialView("~/Views/ColumnSumView.cshtml",new List<double>() { 2.0 }));
但是，如果我在MultiplePartialViewsResult的构造函数中放置断点，我看到这两种情况下的模型都等于2.0。它使用数组中指定的最后一个模型覆盖所有模型。
尝试在方法中创建几个PartialView并将其分配给变量。那么你会注意到他们都有相同的模式。
解决方法
您可以使用新的自己的ViewData / ViewData.Model实例以下列方式初始化MultiplePartialViewsResult对象(对我来说可以正常工作)：
return new MultiplePartialViewsResult(
//PartialView("~/Views/RowSumView.cshtml",//PartialView("~/Views/ColumnSumView.cshtml",new List<double>() { 2.0 })
new PartialViewResult() { ViewName = "~/Views/RowSumView.cshtml",ViewData = new ViewDataDictionary() { Model = new List<double>() { 1.0 } } },new PartialViewResult() { ViewName = "~/Views/ColumnSumView.cshtml",ViewData = new ViewDataDictionary() { Model = new List<double>() { 2.0 } } }
);
自定义操作结果：
public class MultiplePartialViewsResult : ActionResult {
private const string Separator = "-";
private PartialViewResult[] _partialViews;
public MultiplePartialViewsResult(params PartialViewResult[] partialViews) {
_partialViews = partialViews;
}
public override void ExecuteResult(ControllerContext context) {
foreach(var partialView in _partialViews) {
partialView.ExecuteResult(context);
context.HttpContext.Response.Output.Write(Separator);
}
}
}
控制器：
public ActionResult Index() {
return View();
}
public ActionResult FakeAction() {
return new MultiplePartialViewsResult(
//PartialView("~/Views/RowSumView.cshtml",new List<double>() { 2.0 })
new PartialViewResult() { ViewName = "~/Views/RowSumView.cshtml",ViewData = new ViewDataDictionary() { Model = new List<double>() { 2.0 } } }
);
}
浏览次数：
指数：
@Html.Action("FakeAction")
ColumnSumView.cshtml / RowSumView.cshtml：
@model List<double>
<ul>
@foreach(double item in Model) {
<li>@item</li>
}
</ul>
