通过一个JSON格式的DateTime到ASP.NET MVC [英] Pass a JSON format DateTime to ASP.NET MVC

问题描述

我们知道，在MVC格式返回日期时间为JsonResult： /日期（1240718400000）/ ，我们知道如何解析它在JS

We know that MVC returns DateTime for JsonResult in this format: /Date(1240718400000)/, and we know how to parse it in JS.

不过，这似乎MVC不接受这种方式被发送日期时间参数。例如，我有以下的动作。

However, It seems that MVC doesn't accept DateTime parameter being sent in this way. For example, I have the following Action.

[HttpGet]
public ViewResult Detail(BookDetail details) { //... }

该BookDetail类包含一个名为CREATEDATE日期时间字段，我在这个格式进行传递一个JSON对象从JS：

The BookDetail class contains a DateTime field named CreateDate, and I passed a JSON object from JS in this format:

{"CreateDate": "/Date(1319144453250)/"}

CREATEDATE被认定为无效。

CreateDate is recognized as null.

如果我用这种方式传递的JSON，它按预期工作：

If I passed the JSON in this way, it works as expected:

{"CreateDate": "2011-10-10"}

问题是，我不能改变客户端code在一个简单的方法，必须坚持/日期（1319144453250）/该格式。我不得不在服务器端的变化。

The problem is that I cannot change client side code in an easy way, have to stick to /Date(1319144453250)/ this format. I have to make changes in server side.

如何解决这个问题呢？是有关什么ModelBinder的？

How to solve this problem? Is that anything related to ModelBinder?

在此先感谢这么多！

推荐答案

的问题，因为你怀疑，是一个模型结合的问题。

The problem, as you suspected, is a model binding issue.

要解决它，创建一个自定义类型，姑且称之为 JsonDateTime 。由于DateTime的是一个结构，你不能继承它，所以创建以下类：

To work around it, create a custom type, and let's call it JsonDateTime. Because DateTime is a struct, you cannot inherit from it, so create the following class:

public class JsonDateTime
{
    public JsonDateTime(DateTime dateTime)
    {
        _dateTime = dateTime;
    }

    private DateTime _dateTime;

    public DateTime Value
    {
        get { return _dateTime; }
        set { _dateTime = value; }
    }
}

更改CREATEDATE这种类型。接下来，我们需要一个自定义的模型绑定，就像这样：

Change CreateDate to this type. Next, we need a custom model binder, like so:

public class JsonDateTimeModelBinder : IModelBinder  
{ 
    public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) 
    { 
        var value = bindingContext.ValueProvider.GetValue(bindingContext.ModelName).ToString(); 
        return new DateTime(Int64.Parse(
            value.Substring(6).Replace(")/",String.Empty))); // "borrowed" from skolima's answer
    }
}

然后，在Global.asax.cs中，在的Application_Start，注册您的自定义ModelBinder的：

Then, in Global.asax.cs, in Application_Start, register your custom ModelBinder:

ModelBinders.Binders.Add(typeof(JsonDateTime), new JsonDateTimeModelBinder());

这篇关于通过一个JSON格式的DateTime到ASP.NET MVC的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！