public override object Evaluate(object[] args)
{
try
{
DateTime start_date = ArgumentConvert.ToDateTime(args[0]);
DateTime end_date = ArgumentConvert.ToDateTime(args[1]);
int Days = end_date.Subtract(start_date).Days;
if (Days != 0)
{
return(Days);
}
}
catch
{
}
return(CalcError.Value);
}
public override object Evaluate(object[] args)
{
try
{
DateTime start_date = ArgumentConvert.ToDateTime(args[0]);
DateTime end_date = ArgumentConvert.ToDateTime(args[1]);
String type = ArgumentConvert.ToString(args[2]).Trim().ToUpper();
//int hasDecimal = CalcConvert.ToInt(args[3]);
double time = 0;
TimeSpan ts = end_date.Subtract(start_date);
switch (type)
{
case "D": //天数
time = ts.TotalDays;
break;
case "H": //小时数
time = (ts.TotalHours < 0 ? ts.TotalHours + 24 : ts.TotalHours);
break;
case "M": //分钟数
time = (ts.TotalMinutes < 0 ? ts.TotalMinutes + 24 * 60 : ts.TotalMinutes);
break;
case "S": //秒数
time = (ts.TotalSeconds < 0 ? ts.TotalSeconds + 24 * 3600 : ts.TotalSeconds);
break;
}
if (time != 0)
{
return(time);
}
return(DBNull.Value);
}
catch
{
throw new InvalidCastException();
}
}