尝试将字符串转换为日期时间时出现此错误“字符串未被识别为有效的日期时间”
我的字符串值:“09/25/2012 11:00:36:156”
代码 :
capture = Convert.ToDateTime(newRecord.CaptureTime),
我建议您使用正则表达式。您将拥有验证输入字符串和强大的 DateTime 转换机制:
void Main()
{
string datestring = "09/25/2012 11:00:36:156";
string regexpr = @"(?x)(?i)
(\d{1,4}) [./-]
(\d{1,2}) [./-]
(\d{1,4}) [\sT] (\d+):(\d+):(\d+) \s? (A\.?M\.?|P\.?M\.?)?";
DateTime capture = new DateTime(); // set to default value in case datestring isn't valid
if (Regex.IsMatch(datestring, regexpr)
&& DateTime.TryParse(Regex.Match(datestring, regexpr).Groups[0].Value, out capture))
{
// convert is succeded
}
else
{
// Handle invalid dateString
}
Console.WriteLine(capture);
}
或DateTime.TryParseExact()。在这里阅读更多。
问题在于最后一个冒号 (':') 替换为 . 2012 年 9 月 25 日 11:00:36:156
var dateString = "09/25/2012 11:00:36:156";
var modifiedString = dateString.Substring(0, dateString.Length - 4) + "." + dateString.Substring(20);
//var modifiedString = dateString.Substring(0, dateString.Length - 4);
var dateValue = Convert.ToDateTime(modifiedString);