字符串未被识别为有效的日期时间 [英] String was not recognized as a valid date time

问题描述

在vb.net中，字符串未被识别为有效的日期时间？

String was not recognized as a valid datetime in vb.net?

推荐答案

可能是因为您正在转换日期它以字符串表示，不在标准日期格式。例如，

It may be because you are converting a date which is represented as a string and is not on the standard date format. Ex,

Dim _dateString As String = "22-2009-11"
Dim _date As DateTime = = DateTime.Parse(_dateString);

抛出异常，因为 _dateString 标准日期格式。您最好的办法是使用 DateTime .ParseExact

throws an exception because _dateString is non-standard date format. The best thing you will do is to use DateTime.ParseExact

Dim _dateString As String = "22-2009-11"
Dim _date As DateTime =  DateTime.ParseExact(_dateString,"dd-yyyy-MM",CultureInfo.InvariantCulture);

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