MVC 默认模型绑定到复杂列表
我在使用默认活页夹绑定到嵌套列表时遇到一些问题。我正在使用 linq to sql 并具有以下数据
结构竞赛问题< ComparisonQuestionChoices
我的 html 如下
<%= Html.Hidden("Competition.Id",Model.Competition.Id) %>
<%=Html.TextBox("Competition.CompetitionName", Model.Competition.CompetitionName )%>
<%= Html.TextBox("Competion.CompetitionQuestions[0].Id", Model.CompetitionQuestion.Id)%>
<%= Html.TextBox("Competion.CompetitionQuestions[0].Question", Model.CompetitionQuestion.Question )%>
<%= Html.TextBox("Competion.CompetitionQuestions[0].CompetitionQuestionChoices[0].Id", Model.CompetitionQuestionChoices.Id)%>
<%= Html.TextBox("Competion.CompetitionQuestions[0].CompetitionQuestionChoices[0].Choice", Model.CompetitionQuestionChoices.Choice)%>
在我的控制器中，我尝试过
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Save([Bind(Prefix="Competition")]Competition competition)
{
}
这让我参加竞争，但没有子元素，
如果没有列表中的竞争前缀 int HTML 并单独绑定到每个集合，我会更成功，例如，
UpdateModel(competition,"Competition");
UpdateModel(competition.CompetitionQuestions,"competitionQuestions");
但我无法让它工作对于竞赛问题选择，因为它必须有两个前缀，我不知道如何声明
感谢收到任何帮助。
I'm having some trouble binding to a nested list with the default binder. I am using linq to sql and have the following data structure
Competition < CompetitionQuestions < CompetitionQuestionChoices
my html is as follows
<%= Html.Hidden("Competition.Id",Model.Competition.Id) %>
<%=Html.TextBox("Competition.CompetitionName", Model.Competition.CompetitionName )%>
<%= Html.TextBox("Competion.CompetitionQuestions[0].Id", Model.CompetitionQuestion.Id)%>
<%= Html.TextBox("Competion.CompetitionQuestions[0].Question", Model.CompetitionQuestion.Question )%>
<%= Html.TextBox("Competion.CompetitionQuestions[0].CompetitionQuestionChoices[0].Id", Model.CompetitionQuestionChoices.Id)%>
<%= Html.TextBox("Competion.CompetitionQuestions[0].CompetitionQuestionChoices[0].Choice", Model.CompetitionQuestionChoices.Choice)%>
In my controller I have tried
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Save([Bind(Prefix="Competition")]Competition competition)
{
}
which gets me a competition but no child elements
I have been more succesfull without the Competition prefix on the Lists int the HTML and binding to each collection individually e.g.
UpdateModel(competition,"Competition");
UpdateModel(competition.CompetitionQuestions,"competitionQuestions");
but I cant get this to work for competitionQuestionChoices as it has to have two prefixes and I'm not sure how to declare
Any help is gratefully received.
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事实证明，我的问题源于 .Net 3.5 中的分配方法的问题。在瞄准 .Net 4 后，绑定工作正常。这是一篇带有进一步解释的帖子。
it turns out my problems were stemming from an issue with the assign method in .Net 3.5 After targeting .Net 4 the bind worked correctly. Here is a post with further explanation.