/// <summary>
/// Equals method overloaded to compare two values of the same data type.
/// </summary>
/// <param name="obj">The object to compare with.</param>
/// <returns>true, if both values are equals, otherwise false.</returns>
public override bool Equals(object obj)
{
DaytimeDuration compareTo = obj as DaytimeDuration;
if (compareTo == null)
{
return(base.Equals(obj));
}
return(_days == compareTo._days && _hours == compareTo._hours && _minutes == compareTo._minutes && _seconds == compareTo._seconds && _negative == compareTo._negative);
}
/// <summary>
/// Evaluates the function.
/// </summary>
/// <param name="context">The evaluation context instance.</param>
/// <param name="args">The function arguments.</param>
/// <returns>The result value of the function evaluation.</returns>
public override EvaluationValue Evaluate(EvaluationContext context, params IFunctionParameter[] args)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (args == null)
{
throw new ArgumentNullException("args");
}
DateTime baseDate = GetDateTimeArgument(args, 0);
typ.DaytimeDuration dayTimeDuration = GetDaytimeDurationArgument(args, 1);
baseDate = baseDate.AddDays(dayTimeDuration.Days * -1);
baseDate = baseDate.AddHours(dayTimeDuration.Hours * -1);
baseDate = baseDate.AddMinutes(dayTimeDuration.Minutes * -1);
baseDate = baseDate.AddSeconds(dayTimeDuration.Seconds * -1);
return(new EvaluationValue(baseDate, DataTypeDescriptor.DateTime));
}