MVC日期时间模型绑定 [英] MVC Date Time Model Binding

问题描述

我在应用程序中使用了2个剑道日期选择器，例如:

I am using 2 kendo date pickers in my application as such:

<div class="span12">
    <div class="span2" style="text-align: right">
        Start Date:
    </div>
    <div class="span2">
        @(Html.Kendo().DatePickerFor(m=>m.StartDate))
    </div>
    <div class="span2" style="text-align: right">
        End Date:
    </div>
    <div class="span2">
        @(Html.Kendo().DatePickerFor(m=>m.EndDate))
    </div>
    <div class="span4">
        <button class="btn btn-primary" onclick="getGraphData()">Show</button>
    </div>
</div>

单击按钮时，我读取了这些日期选择器客户端的值，并向API控制器进行了POST.

When the button is clicked, I read the values of these date pickers client side and make a POST to a API controller.

我遇到的问题有时是DateTime参数解析不正确，我使用的是en-GB文化(在我的web.config中指定)，但是给定的日期为2014年3月1日(3月1日)，该值由模型联编程序处理，解释为2014年3月1日(1月3日).

The issue I am having is sometimes the DateTime parameters are parsed incorrectly, I am using a en-GB culture (specified in my web.config), however given a date of 01/03/2014 (1st March), when the value is processed by the model binder, it is interpreted as 03/01/2014 (3rd Jan).

我的JavaScript如下:

My javascript is as follows:

function getGraphData() {

        var startDatePicker = $("#StartDate").data("kendoDatePicker");
        var endDatePicker = $("#EndDate").data("kendoDatePicker");
        var param = {
            StartDate: kendo.toString(startDatePicker.value().toLocaleDateString(), "dd/MM/yyyy"),
            EndDate: kendo.toString(endDatePicker.value().toLocaleDateString(), "dd/MM/yyyy")
        };
       // Do post here

    }

我的模型如下:

public class DateRangeParam
    {
        #region Constructors and Destructors

        /// <summary>
        /// Initializes a new instance of the <see cref="DateRangeParam"/> class.
        /// </summary>
        public DateRangeParam()
        {
            this.EndDate = DateTime.Today.AddDays(1).AddSeconds(-1);
            this.StartDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1);
        }

        #endregion

        #region Public Properties

        /// <summary>
        ///     Gets or sets the end date.
        /// </summary>
        public DateTime EndDate { get; set; }

        /// <summary>
        ///     Gets or sets the start date.
        /// </summary>
        public DateTime StartDate { get; set; }

        #endregion
    }

我认为解决方案是我需要一个自定义模型活页夹来解析日期时间值，因此我在(如下所示)上创建并将其注册到Global.asax.cs文件中，但这没有用，活页夹永远不会我不确定这是否是因为datetime是自定义对象的属性.

I figured the solutions was that I needed a custom model binder to parse the datetime value, so I created on (as follows) and registered it in the Global.asax.cs file, but this didnt work, the binder is never called, I am unsure if this is because the datetime is a property of a custom object.

 public class DateTimeModelBinder : IModelBinder
    {
        #region Fields


        private readonly string _customFormat;

        #endregion

        #region Constructors and Destructors

       public DateTimeModelBinder(string customFormat)
        {
            this._customFormat = customFormat;
        }

        #endregion

        #region Explicit Interface Methods

        object IModelBinder.BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
        {
            ValueProviderResult value = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);
            return DateTime.ParseExact(value.AttemptedValue, this._customFormat, CultureInfo.InvariantCulture);
        }

        #endregion
    }

并且其注册如下:

var binder = new DateTimeModelBinder(new CultureInfo("en-GB").DateTimeFormat.ShortDatePattern);
ModelBinders.Binders.Add(typeof(DateTime), binder);
ModelBinders.Binders.Add(typeof(DateTime?), binder);

有人知道我要去哪里吗?

Does anyone know where I am going wrong?

推荐答案

我没有看到的是您在global.asax中注册DateTimeModelBinder的位置:

What I didn't see was where you registered your DateTimeModelBinder in your global.asax:

ModelBinders.Binders[typeof(DateTime)] = 
           new DateAndTimeModelBinder() { CustomFormat = "yyyy-mm-dd" };

Scott Hanselman的这篇与DateTime自定义模型绑定器非常相似的帖子

这篇关于MVC日期时间模型绑定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！