如何转换它，错误显示“字符串未被识别为有效日期时间” [英] how to convert this,the error show "string was not recognized as a valid datetime"

问题描述

if (userDateFormat.Trim().Contains("dd/MM/yyyy"))
    convertedDateTime = DateTime.ParseExact(dateTimeString,
        format_dmy,
        CultureInfo.InvariantCulture,
        DateTimeStyles.AllowLeadingWhite | DateTimeStyles.AllowTrailingWhite);

推荐答案

假设第二行是抛出异常的那一行，你应该可能使用更安全的错误检查版本的DateTime解析器...



https://msdn.microsoft.com/en-us/library/system.datetime.tryparseexact%28v=vs.110%29.aspx [ ^ ]



这将允许您加入我们e相同的值，但是您将convertedDateTime的实例作为方法中的最终参数传递为out convertedDateTime，并且您可以检查返回的布尔值以查看转换是否成功。

Assuming that the second line is the one that threw the exception, you should probably use the safer error checking version of the DateTime parser...

https://msdn.microsoft.com/en-us/library/system.datetime.tryparseexact%28v=vs.110%29.aspx[^]

This will allow you to use the same values, but you pass the instance of your convertedDateTime as the final parameter in the method as "out convertedDateTime" and you can check the returned Boolean value to see if your conversion was successful.

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