你将如何实施这个?
我有以下模型:
class Something
{
public string Label { get; set; }
public DateTime Date1 { get; set; }
}
class SomethingStage2 : Something
{
public DateTime Date2 { get; set; }
}
class SomethingStage3 : SomethingStage2
{
public DateTime Date3 { get; set; }
}
以及以下编辑器模板:
编辑器模板\东西
<%@ Control Language="C#" Inherits="ViewUserControl<Something>" %>
<%= Html.Hidden( "TypeName", Model.GetType() ) %>
<%= Html.EditorFor( x => x.Label ) %>
<%= Html.EditorFor( x => x.Date1 ) %>
EditorTemplates\SomethingStage2
<%@ Control Language="C#" Inherits="ViewUserControl<SomethingStage2>" %>
<% Html.RenderPartial("EditorTemplates/Something.ascx" %>
<%= Html.EditorFor( x => x.Date2 ) %>
EditorTemplates\SomethingStage3
<%@ Control Language="C#" Inherits="ViewUserControl<SomethingStage3>" %>
<% Html.RenderPartial("EditorTemplates/SomethingStage2.ascx" %>
<%= Html.EditorFor( x => x.Date3 ) %>
为了更新,我有以下控制器方法:
public ActionResult Update( Something model );
从技术上讲,它运作得很好。
更新:为了处理模型的不同子类,我借用了这个想法:http://www.codinginstinct.com/2010/03/aspnet-mvc-and-convention-based-forms.html http://www.codinginstinct.com/2010/03/aspnet-mvc-and-convention-based-forms.html
public class CustomModelBinder : DefaultModelBinder
{
public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
{
var typeName = bindingContext.ValueProvider.GetValue("TypeName");
var type = Type.GetType(reportFormTypeName.AttemptedValue);
var model = bindingContext.ModelMetadata.Model;
bindingContext.ModelMetadata = new ModelMetadata(ModelMetadataProviders.Current,
bindingContext.ModelMetadata.ContainerType,
() => model, type , bindingContext.ModelMetadata.PropertyName);
return base.BindModel(controllerContext, bindingContext);
}
}
更新:如果 Date3 应该位于 Label 和 Date1 之间,那么这种方法当然行不通。这就是为什么它适用于简单的表单。而且它可以节省大量时间,
对于简单的情况,编辑表单很简单,这种方法正确吗? 我只是想知道这样做是否“正确”。如果没有,您将如何实施?