Angular 2 Material 2 datepicker日期格式 [英] Angular 2 Material 2 datepicker date format

问题描述

我需要帮助。我不知道如何更改材料2 datepicker的日期格式。我已阅读文档，但我不明白我实际需要做什么。 datepicker默认提供的输出日期格式为fe：6/9/2017

I need help. I don't know how to change the date format of the material 2 datepicker. I've read documentation but I don't understand what I actually need to do. Output date format which datepicker provides by default is f.e.: 6/9/2017

我想要实现的是将格式更改为2017年6月9日或任何其他。

What I'm trying to achieve is to change format to the 9-Jun-2017 or any other.

文档 https://material.angular .io / components / component / datepicker 根本没有帮助我。
提前致谢

Documentation https://material.angular.io/components/component/datepicker doesn't help me at all. Thanks in advance

推荐答案

以下是我找到的唯一解决方案：

Here is the only solution I found for this one:

首先，创建const：

First, create const:

const MY_DATE_FORMATS = {
   parse: {
       dateInput: {month: 'short', year: 'numeric', day: 'numeric'}
   },
   display: {
       // dateInput: { month: 'short', year: 'numeric', day: 'numeric' },
       dateInput: 'input',
       monthYearLabel: {year: 'numeric', month: 'short'},
       dateA11yLabel: {year: 'numeric', month: 'long', day: 'numeric'},
       monthYearA11yLabel: {year: 'numeric', month: 'long'},
   }
};

然后你必须扩展NativeDateADapter：

Then you have to extend NativeDateADapter:

export class MyDateAdapter extends NativeDateAdapter {
   format(date: Date, displayFormat: Object): string {
       if (displayFormat == "input") {
           let day = date.getDate();
           let month = date.getMonth() + 1;
           let year = date.getFullYear();
           return this._to2digit(day) + '/' + this._to2digit(month) + '/' + year;
       } else {
           return date.toDateString();
       }
   }

   private _to2digit(n: number) {
       return ('00' + n).slice(-2);
   } 
}

在格式化功能中，您可以选择任何您想要的格式

最后一步，您必须将其添加到模块提供商中：

And the last step, you have to add it into module providers:

providers: [
    {provide: DateAdapter, useClass: MyDateAdapter},
    {provide: MD_DATE_FORMATS, useValue: MY_DATE_FORMATS},
],

就是这样。我无法相信没有一些简单的方法可以通过@Input更改日期格式，但我们希望它将在未来版本的材料2（目前 beta 6 ）中实现。

And that's it. I can not believe that there is no some easy way to change date format through the @Input but let's hope it will be implemented in some future version of material 2 (currently beta 6).

这篇关于Angular 2 Material 2 datepicker日期格式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！