/************************************
* Method: getCountBetweenDateTimes
* FullName: MyForm.util.DateUtil.getCountBetweenDateTimes
* Returns: long
* CreateTime: 2017/07/07 9:02
* Parameter: string oldDateTimeStr
* Parameter: TimeStampEnum timeStampEnum
* Description: 根据参数获取日期时间到当前时间的特定维度的差值
************************************/
public static long getCountBetweenDateTimes(string oldDateTimeStr, TimeStampEnum timeStampEnum)
{
return(getCountBetweenDateTimes(DateTime.Now, getDateTime(oldDateTimeStr), timeStampEnum));
}
private double GetMinutesFromEnum(TimeStampEnum timeStamp, int amount) =>
timeStamp switch
{
/************************************
* Method: getCountBetweenDateTimes
* FullName: MyForm.util.DateUtil.getCountBetweenDateTimes
* Returns: long
* CreateTime: 2017/07/07 8:59
* Parameter: DateTime newDateTime
* Parameter: DateTime oldDateTime
* Parameter: TimeStampEnum timeStampEnum
* Description: 根据参数获取两个日期时间的特定维度的差值
************************************/
public static long getCountBetweenDateTimes(DateTime newDateTime, DateTime oldDateTime, TimeStampEnum timeStampEnum)
{
TimeSpan timeSpan = newDateTime.Subtract(oldDateTime);
if (timeStampEnum == TimeStampEnum.MILLISECOND)
{
return((long)Math.Floor(timeSpan.TotalMilliseconds));
}
else if (timeStampEnum == TimeStampEnum.SECOND)
{
return((long)Math.Floor(timeSpan.TotalSeconds));
}
else if (timeStampEnum == TimeStampEnum.MINUTE)
{
return((long)Math.Floor(timeSpan.TotalMinutes));
}
else if (timeStampEnum == TimeStampEnum.HOUR)
{
return((long)Math.Floor(timeSpan.TotalHours));
}
else if (timeStampEnum == TimeStampEnum.DAY)
{
return((long)Math.Floor(timeSpan.TotalDays));
}
else if (timeStampEnum == TimeStampEnum.WEEK)
{
return((long)Math.Floor(timeSpan.TotalDays / 7));
}
else if (timeStampEnum == TimeStampEnum.MONTH)
{
long result = (newDateTime.Year - oldDateTime.Year) * 12 + (newDateTime.Month - oldDateTime.Month);
return(result);
}
else if (timeStampEnum == TimeStampEnum.YEAR)
{
return(newDateTime.Year - oldDateTime.Year);
}
return(0);
}
