uwp CalendarDatePicker 设置日期格式 [英] uwp CalendarDatePicker set date format

问题描述

我正在尝试为 CalendarDatePicker 设置日期格式以用于全球化目的.我试过这个:

I'm trying to set a date format for the CalendarDatePicker for globalisation purposes. I tried this:

endDate = (FindName("cdpEnd") as CalendarDatePicker);
endDate.DateFormat = CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern;
endDate.Date = workObject.EndCal;

但它给了我以下异常:

System.ArgumentException: The parameter is incorrect.

formatTemplate
   at Windows.UI.Xaml.Controls.CalendarDatePicker.put_DateFormat(String value)
   at App1.PageWorkObject.rootGrid_Loaded(Object sender, RoutedEventArgs e)

我检查了我设置的值，对我来说它看起来很正常:"M/d/yyyy"

I checked the value I had set and it looked normal to me: "M/d/yyyy"

我做错了什么?

推荐答案

当您使用 CalendarDatePicker，它的 TextBox 部分的字符串内容由 DateTimeFormatter.

When you use a CalendarDatePicker, the string content of the TextBox portion of it is created by a DateTimeFormatter.

"M/d/yyyy" 看似正常，但是

重要您不能随意组合组件并必须获得有效模板.唯一有效的模板是由提供的语法定义的模板.

Important You can't arbitrarily combine components and necessarily obtain a valid template. The only valid templates are those defined by the provided grammar.

如果你阅读参考DateTimeFormatter类，你会发现没有像"M/d/yyyy"这样的格式，对于这样的相同格式M/d/yyyy"，我觉得应该是这样的:

If you read refer to the DateTimeFormatter class, you will find there is no format like "M/d/yyyy", for the same format like "M/d/yyyy", I think it should be like this:

endDate.DateFormat = "{month.integer}‎/‎{day.integer}‎/‎{year.full}";

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