MVC父子操作页面呈现?

时间:2012-06-22 06:28:34

标签: asp.net-mvc

我正在学习在父操作中嵌入子操作,并在从子操作提交表单时正确呈现整个页面。

ParentAction.cshtml --------------------------------------

@model Web1.Models.ParentActionModel
@{ViewBag.Title = "ParentAction";}
<h2>Parent Action</h2>
@Html.ValidationSummary(true, "Please correct parent errors and try again.")
@using (Html.BeginForm()) {
  //parent forminput  stuff
  <input type="submit" value="Parent Button" />
}
@Html.Action("ChildAction","Home") <!-- ChildAction is included here -->

ChildAction.cshtml(包含在parent.cshtml中)------------

@model Web1.Models.ChildActionModel
@{ViewBag.Title = "ChildAction";}
<h2>Child Action</h2>    
@Html.ValidationSummary(true, "Please correct child errors and try again.")
@using (Html.BeginForm("ChildAction", "Home")) {
    //child form input stuff
    <input type="submit" value="Child Button" />
}

HomeController.cs -----------------------

public ActionResult ParentAction() {
    return View();
}
[HttpPost]
public ActionResult ParentAction(ParentActionModel pmodel) {
    //do model update stuff
    return View(pmodel);
}
[ChildActionOnly]
public ActionResult ChildAction() {
    return PartialView();
}
[HttpPost]
public ActionResult ChildAction(ChildActionModel cmodel) {
    //do model update stuff
    return PartialView(cmodel); // <---This is wrong, What's the correct way to do it?
}

现在,当我点击“子按钮”时,我只会看到子动作的视图(durrr!),如何修复它以生成整页父+子视图?这似乎是一个很容易的逻辑,但我坚持了好几个小时。

1 个答案:

答案 0 :(得分:2)

  

所以,如果我在HttpPost Details方法中删除了[ChildActionOnly],   当我单击提交时,只返回Details.cshtml partialView,   不是Master.cshtml,这不是我想要的,也不是。

那是因为在这种情况下你不应该返回一个PartialView,而是一个完整的View:

[HttpPost]
public virtual ActionResult Details(DetailsModel model) 
{
    if (!ModelState.IsValid)
    {
        return View(model);
    }

    return RedirectToAction("Success");
}

您可能还需要有条件地呈现Details操作以避免无限循环:

@if (!IsPost)
{
    @Html.Action("Details", "Home")
}

显然,如果你想保留你在调用这个POST动作时所处的原始上下文,你将不得不使用AJAX,然后用AJAX调用这个POST动作,并只替换DOM的相应部分。