qml中获取时间的方法,日期和时间的正则表达式（DD / MM / YYYY hh：mm：ss）在QML中...

最新推荐文章于 2023-12-20 16:32:44 发布

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最新推荐文章于 2023-12-20 16:32:44 发布

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文章标签： qml中获取时间的方法

本文介绍了一个自定义的QML日期时间输入控件，该控件使用正则表达式进行验证，包括闰年等复杂情况。文章讨论了如何解决用户清除年份输入的问题，并提供了解决方案。

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In QML2 I didn't find any Calender control and I have implemented a control which takes date and time as input and I am using the regular expression for the validation which matches dates including leap year and other validations.

The main problem is space/backspace should also be considered as a valid for example:

\s\s/\s\s/\s\s \s\s:\s\s:\s\s

Following is the code :

TextField{

id:textEditDate

width:parent.width * 0.50

height:parent.height

text : "01/01/2017 00:00:00"

inputMask: "99/99/9999 99:99:99"

validator: RegExpValidator { regExp: /^(((([0\s][1-9\s]|[1\s][0-9\s]|[2\s][0-8\s])[\/]([0\s][1-9\s]|[1\s][012\s]))|((29|30|31)[\/]([0\s][13578\s]|[1\s][02\s]))|((29|30)[\/]([0\s][4,6,9]|11)))[\/]([19\s[2-9\s][0-9\s])\d\d|(^29[\/]02[\/]([19\s]|[2-9\s][0-9\s])(00|04|08|12|16|20|24|28|32|36|40|44|48|52|56|60|64|68|72|76|80|84|88|92|96)))\s([0-1\s]?[0-9\s]|2[0-3\s]):([0-5\s][0-9\s]):([0-5\s][0-9\s])$/}

horizontalAlignment: Text.AlignHCenter

inputMethodHints: Qt.ImhDigitsOnly

}

Now, everything works well except for the year and I am not able to match backspace/space for the year and user is not able to clear the year.

Can you please suggest how to achieve this ? or is there any other method to do this.

解决方案

Your sequence to match the year is:

([19\s[2-9\s][0-9\s])\d\d

Which looks malformed, as the brackets do not match.

Also, the presence of the two digits (using \d) means that the expression will not match white space.