字符串未被识别为c＃中的有效日期时间 [英] string was not recognized as a valid datetime in c#

问题描述

您好我想将字符串转换为dateTime。

但我得到字符串未被识别为有效日期时间此错误。



我的代码是：

Hi i want to convert string into dateTime.
But i got the "string was not recognized as a valid datetime " this error.

My code is:

string valdate = "20140525";
DateTime MyDateTime ;
MyDateTime = DateTime.ParseExact(valdate, "yyyyMMdd ",
              System.Globalization.CultureInfo.InvariantCulture);
DateTime now = DateTime.Now;

推荐答案

你有额外的空间yyyyMMdd ，删除它并检查

但是我会使用 DateTime.TryParseExact方法 [ ^ ]如下所示。我们可以处理无效的用户输入而不会抛出异常。 :-)

you have additional space "yyyyMMdd ", remove that and check
but I would use DateTime.TryParseExact Method[^] here as below. We can handle invalid user inputs without throwing an exception. :-)

string valdate = "20140525";
DateTime MyDateTime ;
if(DateTime.TryParseExact(valdate, "yyyyMMdd",
              System.Globalization.CultureInfo.InvariantCulture,  System.Globalization.DateTimeStyles.None,out MyDateTime))
{
    //success and do something with MyDateTime
}

只需添加您的代码：



MyDateTime = Convert.ToDateTime（valdate）;

Just add in your code :

MyDateTime=Convert.ToDateTime(valdate);

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