ASP.NET MVC 3 模型没有有关回发的信息
我有一个视图,其中有几个绑定到模型的部分视图。由于某种原因,当我发布时,模型是空的,我不确定为什么。
下面是我的视图模型。
public class IndexViewModel
{
public bool AdvancedSearchOption { get; set; }
public bool ForceAdvanced { get; set; }
public bool ForceSimple { get; set; }
public string SimpleSearchCriteria { get; set; }
public string CustomerNumberCriteria { get; set; }
public string AccountNumberCriteria { get; set; }
public string NameCriteria { get; set; }
public string PhoneNumberCriteria { get; set; }
}
这是我的控制器。我正在填写视图模型的所有值,因为我想查看这些值是否到达部分视图。他们确实到达了那里,所以我只是在帖子上遇到了问题。
public class HomeController : Controller
{
private ISecurityRepository SecurityRep;
public HomeController(ISecurityRepository repo)
{
SecurityRep = repo;
}
public ActionResult Index()
{
IndexViewModel temp = new IndexViewModel();
temp.AdvancedSearchOption = SecurityRep.DefaultToAdvancedSearch(User.Identity.Name);
temp.ForceAdvanced = false;
temp.ForceSimple = false;
temp.SimpleSearchCriteria = "Testing";
temp.AccountNumberCriteria = "Acct";
temp.CustomerNumberCriteria = "Cust";
temp.NameCriteria = "Name";
temp.PhoneNumberCriteria = "Phone";
return View(temp);
}
public ActionResult SimpleSearch()
{
IndexViewModel temp = new IndexViewModel();
temp.AdvancedSearchOption = SecurityRep.DefaultToAdvancedSearch(User.Identity.Name);
temp.ForceAdvanced = false;
temp.ForceSimple = true;
temp.SimpleSearchCriteria = "Testing";
temp.AccountNumberCriteria = "Acct";
temp.CustomerNumberCriteria = "Cust";
temp.NameCriteria = "Name";
temp.PhoneNumberCriteria = "Phone";
return View("Index",temp);
}
public ActionResult AdvancedSearch()
{
IndexViewModel temp = new IndexViewModel();
temp.AdvancedSearchOption = SecurityRep.DefaultToAdvancedSearch(User.Identity.Name);
temp.ForceAdvanced = true;
temp.ForceSimple = false;
temp.SimpleSearchCriteria = "Testing";
temp.AccountNumberCriteria= "Acct";
temp.CustomerNumberCriteria= "Cust";
temp.NameCriteria= "Name";
temp.PhoneNumberCriteria = "Phone";
return View("Index", temp);
}
[HttpPost]
public ActionResult Index(IndexViewModel vm, FormCollection formCollection)
{
return View();
}
}
这是我的视图
@model TRIOSoftware.Magnum.Models.IndexViewModel
@{
ViewBag.Title = "Search";
}
@if ((@Model.AdvancedSearchOption && @Model.ForceSimple != true) || @Model.ForceAdvanced == true)
{
@Html.Partial("AdvancedSearch")
}
else
{
@Html.Partial("SimpleSearch")
}
这是我的 SimpleSearch
部分视图。我想,如果我能让这个发挥作用,另一个就会走同样的路。我在部分帖子中使用 jQuery 来完成它。我不确定这些事情是否会给我带来问题。我只有所有隐藏的物品在那里,因为我不知道没有它们是否会导致我的问题。
@model TRIOSoftware.Magnum.Models.IndexViewModel
<script type="text/javascript">
$(document).ready(function () {
$("#DefaultDiv").find("#DefaultAdvanced").click(function () {
$.post("DefaultSimple");
});
$("#SearchSection").find("#SearchButton").click(function () {
$.post("");
});
});
</script>
@using (Html.BeginForm("Index","Home"))
{
@Html.HiddenFor(m => m.ForceAdvanced)
@Html.HiddenFor(m => m.AdvancedSearchOption)
@Html.HiddenFor(m => m.ForceSimple)
@Html.HiddenFor(m => m.AccountNumberCriteria)
@Html.HiddenFor(m => m.CustomerNumberCriteria)
@Html.HiddenFor(m => m.NameCriteria)
@Html.HiddenFor(m => m.PhoneNumberCriteria)
<div id="DefaultDiv" style="float:right">
<a id="DefaultAdvanced" href="#" class="ButtonClass">Default Simple Search</a>
</div>
<div style="clear:both; margin: auto; width: 800px">
<img src="../../Content/images/TRIO_transparent_image.gif"; alt="TRIO Software"; style="margin-left:150px; clear:left"/>
<div style="clear:left; float: left" class="SearchText">
@Html.Label("What's your inquiry?:")
@Html.EditorFor(m => m.SimpleSearchCriteria, new { style = "width: 400px" })
</div>
<div id="SearchSection" style="float: left" class="SearchText">
<a href="#"; id="SearchButton" class="ButtonClass"><img src="../../Content/images/Search.gif"; alt="Search"; style="float:left" /></a>
</div>
<p style="clear:left;margin-left:400px">
@Html.ActionLink("Advanced Search", "AdvancedSearch", null, new { style = "clear:left" })
</p>
</div>
}
以下是查看简单搜索部分视图时的 HTML 代码:
<div id="main">
<script type="text/javascript">
$(document).ready(function () {
$("#DefaultDiv").find("#DefaultAdvanced").click(function () {
$.post("DefaultSimple");
});
$("#SearchSection").find("#SearchButton").click(function () {
$.post("");
});
});
</script>
<form method="post" action="/">
<input type="hidden" value="False" name="ForceAdvanced" id="ForceAdvanced" data-val-required="The ForceAdvanced field is required." data-val="true">
<input type="hidden" value="False" name="AdvancedSearchOption" id="AdvancedSearchOption" data-val-required="The AdvancedSearchOption field is required." data-val="true">
<input type="hidden" value="False" name="ForceSimple" id="ForceSimple" data-val-required="The ForceSimple field is required." data-val="true">
<input type="hidden" value="Acct" name="AccountNumberCriteria" id="AccountNumberCriteria">
<input type="hidden" value="Cust" name="CustomerNumberCriteria" id="CustomerNumberCriteria">
<input type="hidden" value="Name" name="NameCriteria" id="NameCriteria">
<input type="hidden" value="Phone" name="PhoneNumberCriteria" id="PhoneNumberCriteria">
<div style="float:right" id="DefaultDiv">
<a class="ButtonClass ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" href="#" id="DefaultAdvanced" role="button"><span class="ui-button-text">Default Simple Search</span></a>
</div>
<div style="clear:both; margin: auto; width: 800px">
<img style="margin-left:150px; clear:left" alt="TRIO Software" ;="" src="../../Content/images/TRIO_transparent_image.gif">
<div class="SearchText" style="clear:left; float: left">
<label for="What_s_your_inquiry_:">What's your inquiry?:</label>
<input type="text" value="Testing" name="SimpleSearchCriteria" id="SimpleSearchCriteria" class="text-box single-line">
</div>
<div class="SearchText" style="float: left" id="SearchSection">
<a class="ButtonClass ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" id="SearchButton" ;="" href="#" role="button"><span class="ui-button-text"><img style="float:left" alt="Search" ;="" src="../../Content/images/Search.gif"></span></a>
</div>
<p style="clear:left;margin-left:400px">
<a style="clear:left" href="/Home/AdvancedSearch">Advanced Search</a>
</p>
</div>
</form>
</div>
如何解决此问题?
I have a view with a couple of partial views that I bind to my model. For some reason, when I post, the model is empty, and I am not sure why.
Below is my ViewModel.
public class IndexViewModel
{
public bool AdvancedSearchOption { get; set; }
public bool ForceAdvanced { get; set; }
public bool ForceSimple { get; set; }
public string SimpleSearchCriteria { get; set; }
public string CustomerNumberCriteria { get; set; }
public string AccountNumberCriteria { get; set; }
public string NameCriteria { get; set; }
public string PhoneNumberCriteria { get; set; }
}
Here is my controller. I am filling in all the values of the viewmodel because I wanted to see if the values got to the partial views. They do get there, so it is just on the post that I am having issues.
public class HomeController : Controller
{
private ISecurityRepository SecurityRep;
public HomeController(ISecurityRepository repo)
{
SecurityRep = repo;
}
public ActionResult Index()
{
IndexViewModel temp = new IndexViewModel();
temp.AdvancedSearchOption = SecurityRep.DefaultToAdvancedSearch(User.Identity.Name);
temp.ForceAdvanced = false;
temp.ForceSimple = false;
temp.SimpleSearchCriteria = "Testing";
temp.AccountNumberCriteria = "Acct";
temp.CustomerNumberCriteria = "Cust";
temp.NameCriteria = "Name";
temp.PhoneNumberCriteria = "Phone";
return View(temp);
}
public ActionResult SimpleSearch()
{
IndexViewModel temp = new IndexViewModel();
temp.AdvancedSearchOption = SecurityRep.DefaultToAdvancedSearch(User.Identity.Name);
temp.ForceAdvanced = false;
temp.ForceSimple = true;
temp.SimpleSearchCriteria = "Testing";
temp.AccountNumberCriteria = "Acct";
temp.CustomerNumberCriteria = "Cust";
temp.NameCriteria = "Name";
temp.PhoneNumberCriteria = "Phone";
return View("Index",temp);
}
public ActionResult AdvancedSearch()
{
IndexViewModel temp = new IndexViewModel();
temp.AdvancedSearchOption = SecurityRep.DefaultToAdvancedSearch(User.Identity.Name);
temp.ForceAdvanced = true;
temp.ForceSimple = false;
temp.SimpleSearchCriteria = "Testing";
temp.AccountNumberCriteria= "Acct";
temp.CustomerNumberCriteria= "Cust";
temp.NameCriteria= "Name";
temp.PhoneNumberCriteria = "Phone";
return View("Index", temp);
}
[HttpPost]
public ActionResult Index(IndexViewModel vm, FormCollection formCollection)
{
return View();
}
}
Here is my view
@model TRIOSoftware.Magnum.Models.IndexViewModel
@{
ViewBag.Title = "Search";
}
@if ((@Model.AdvancedSearchOption && @Model.ForceSimple != true) || @Model.ForceAdvanced == true)
{
@Html.Partial("AdvancedSearch")
}
else
{
@Html.Partial("SimpleSearch")
}
Here is my SimpleSearch
partial view. I think if I can get this one working, the other will follow the same path. I do the post in the partial and I use jQuery to do it. I am not sure if either of these things could cause me issues or not. I only have all the hidden items in there because I didn't know if not having them was causing my issues.
@model TRIOSoftware.Magnum.Models.IndexViewModel
<script type="text/javascript">
$(document).ready(function () {
$("#DefaultDiv").find("#DefaultAdvanced").click(function () {
$.post("DefaultSimple");
});
$("#SearchSection").find("#SearchButton").click(function () {
$.post("");
});
});
</script>
@using (Html.BeginForm("Index","Home"))
{
@Html.HiddenFor(m => m.ForceAdvanced)
@Html.HiddenFor(m => m.AdvancedSearchOption)
@Html.HiddenFor(m => m.ForceSimple)
@Html.HiddenFor(m => m.AccountNumberCriteria)
@Html.HiddenFor(m => m.CustomerNumberCriteria)
@Html.HiddenFor(m => m.NameCriteria)
@Html.HiddenFor(m => m.PhoneNumberCriteria)
<div id="DefaultDiv" style="float:right">
<a id="DefaultAdvanced" href="#" class="ButtonClass">Default Simple Search</a>
</div>
<div style="clear:both; margin: auto; width: 800px">
<img src="../../Content/images/TRIO_transparent_image.gif"; alt="TRIO Software"; style="margin-left:150px; clear:left"/>
<div style="clear:left; float: left" class="SearchText">
@Html.Label("What's your inquiry?:")
@Html.EditorFor(m => m.SimpleSearchCriteria, new { style = "width: 400px" })
</div>
<div id="SearchSection" style="float: left" class="SearchText">
<a href="#"; id="SearchButton" class="ButtonClass"><img src="../../Content/images/Search.gif"; alt="Search"; style="float:left" /></a>
</div>
<p style="clear:left;margin-left:400px">
@Html.ActionLink("Advanced Search", "AdvancedSearch", null, new { style = "clear:left" })
</p>
</div>
}
Here is the HTML code when viewing the simple search partial view:
<div id="main">
<script type="text/javascript">
$(document).ready(function () {
$("#DefaultDiv").find("#DefaultAdvanced").click(function () {
$.post("DefaultSimple");
});
$("#SearchSection").find("#SearchButton").click(function () {
$.post("");
});
});
</script>
<form method="post" action="/">
<input type="hidden" value="False" name="ForceAdvanced" id="ForceAdvanced" data-val-required="The ForceAdvanced field is required." data-val="true">
<input type="hidden" value="False" name="AdvancedSearchOption" id="AdvancedSearchOption" data-val-required="The AdvancedSearchOption field is required." data-val="true">
<input type="hidden" value="False" name="ForceSimple" id="ForceSimple" data-val-required="The ForceSimple field is required." data-val="true">
<input type="hidden" value="Acct" name="AccountNumberCriteria" id="AccountNumberCriteria">
<input type="hidden" value="Cust" name="CustomerNumberCriteria" id="CustomerNumberCriteria">
<input type="hidden" value="Name" name="NameCriteria" id="NameCriteria">
<input type="hidden" value="Phone" name="PhoneNumberCriteria" id="PhoneNumberCriteria">
<div style="float:right" id="DefaultDiv">
<a class="ButtonClass ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" href="#" id="DefaultAdvanced" role="button"><span class="ui-button-text">Default Simple Search</span></a>
</div>
<div style="clear:both; margin: auto; width: 800px">
<img style="margin-left:150px; clear:left" alt="TRIO Software" ;="" src="../../Content/images/TRIO_transparent_image.gif">
<div class="SearchText" style="clear:left; float: left">
<label for="What_s_your_inquiry_:">What's your inquiry?:</label>
<input type="text" value="Testing" name="SimpleSearchCriteria" id="SimpleSearchCriteria" class="text-box single-line">
</div>
<div class="SearchText" style="float: left" id="SearchSection">
<a class="ButtonClass ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" id="SearchButton" ;="" href="#" role="button"><span class="ui-button-text"><img style="float:left" alt="Search" ;="" src="../../Content/images/Search.gif"></span></a>
</div>
<p style="clear:left;margin-left:400px">
<a style="clear:left" href="/Home/AdvancedSearch">Advanced Search</a>
</p>
</div>
</form>
</div>
How do I fix this problem?
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评论(3)
尽管您选择了要渲染的部分,但并未将模型传递给它。有一个
Html.Partial
的重载版本,它采用第二个参数,允许您将模型传递给它:所以在您的情况下,您可以使用这个:
另请注意我如何删除 < code>@ 是您在
Model
前面加上的前缀。为了更好地理解原因,请参阅 使用 Razor 语法的 ASP.NET Web 编程简介 以及由 Phil Haack 编写的同一主题的小参考 此处。Although you're selecting a partial to render, you're not passing it the model. There's an overloaded version of
Html.Partial
that takes a second argument that allows you to pass a model to it:So in your case, you'd use this:
Also notice how I've removed the
@
s you were prefixingModel
with. To better understand why, please see Introduction to ASP.NET Web Programming Using the Razor Syntax and a small reference for this same topic written by Phil Haack here.我认为@john-h的回答一语中的。但是,您可能希望减少为自己创建的复杂性。
1)由于ForceSimple和ForceAdvanced都是布尔值,因此会假设当ForceAdvanced为true时,它就不是“Simple”,对吗?我不确定你这里还有什么其他逻辑。
2)为什么不直接使用参数来设置搜索类型,而不是创建两个视图并“发布”回来以获得正确的视图?或者评估安全性以设置用户可以执行哪一个。这是一个示例:
控制器操作:
搜索视图:
I think @john-h hit the nail on the head with his answer. However, you might want to reduce the complexity you've created for yourself.
1) Since both ForceSimple and ForceAdvanced are Boolean, it would be assumed that when ForceAdvanced is true, then it's not "Simple", right? I'm not sure what other logic you have here.
2) Rather than creating two views and "posting" back to get the correct one, why not just use a parameter to set the search type? Or evaluate the security to set which one the user can execute. Here's an example:
Controller Actions:
Search View:
我曾尝试将模型显式发送到部分,但没有成功。我相信,如果未指定任何内容,分部视图默认会获取父模型,因此我所需要做的就是在分部视图中指定模型类型,然后我就获得了信息。
经过多次尝试和错误,我终于弄清楚了。我的问题是由于我尝试使用 jQuery 发帖引起的。您必须执行其他一些操作才能以这种方式更新模型。一旦我更改了它并在帖子表单上放置了输入控件,我就从控制器中的父视图和部分视图取回了所有数据。
I had tried explicitly sending in the model to the partials with no luck. I believe that the partial views get the parent model by default if nothing is specified, so all I needed to do was to specify the model type in my partials, and I got the information.
I finally figured it out with a lot of trial and error. My issue was being caused by me trying to use jQuery to do a post. There must be some other things you need to do to update your model doing it this way. Once I changed it out and put an input control on the form for the post, I got all my data back from the parent and partial view in the controller.