public string AddHours(string datetime, long value)
{
date = new Datetime();
int day = date.GetDay(datetime);
int month = date.GetMonth(datetime);
int year = date.GetYear(datetime);
int hour = date.GetHours(datetime);
int minute = date.GetMinutes(datetime);
//Variavel de saída
string datimeOutup = string.Empty;
while (value != 0)
{
date = new Datetime().Month(month, year);
hour++;
if (hour == 24)
{
//Mudou o dia
day++;
hour = 0;
}
if (day > date.LastDay)
{
//Mudou o mes
day = 1;
month++;
hour = 0;
}
if (month == 13)
{
//Mudou o ano
year++;
month = 1;
day = 1;
hour = 0;
}
value--;
if (value == 0)
{
return(string.Format("{0}/{1}/{2} {3}:{4}",
day.ToString(), month.ToString(), year.ToString(), hour.ToString(), minute.ToString()));
}
}
return(datetime);
}
public string Format(string datetime, int format_type)
{
date = new Datetime();
//Obter dia usando método da classe
int day = date.GetDay(datetime);
//Obter mês usando método da classe
int month = date.GetMonth(datetime);
//Obter ano usando método da classe
int year = date.GetYear(datetime);
//Obter hora usando método da classe
int hour = date.GetHours(datetime);
//Obter minutos usando método da classe
int minutes = date.GetMinutes(datetime);
//Testes usando ternários para determinar a formatação da string de retorno.
//Dia e mês
string dayStr = day < 10 ? "0" + day.ToString() : day.ToString();
string monthStr = month < 10 ? "0" + month.ToString() : month.ToString();
//Hora e minuto
string hoursStr = hour < 10 ? "0" + hour.ToString() : hour.ToString();
string minutesStr = minutes < 10 ? "0" + minutes.ToString() : minutes.ToString();
string monthName = date.Month(month, year).Name;
//Formatar a data.
if (format_type == 2)
{
//2 -> dd-mm-yyyy hh:mm
return(string.Format("{0}-{1}-{2} {3}:{4}",
dayStr, monthStr, year.ToString(), hoursStr, minutesStr).ToUpper());
}
if (format_type == 3)
{
//3 -> dd-Mes-yyyy hh:mm
return(string.Format("{0}-{1}-{2} {3}:{4}",
dayStr, monthName, year.ToString(), hoursStr, minutesStr).ToUpper());
}
if (format_type == 4)
{
// 4 -> dd de Mes de yyyy, hh hora(s) e mm minuto(s)");
return(string.Format("{0} de {1} de {2}, {3} hora(s) e {4} minuto(s)",
dayStr, monthName, year.ToString(), hoursStr, minutesStr).ToUpper());
}
//1 -> dd/mm/yyyy hh:mm
//Tipo 1 é formato default
return(string.Format("{0}/{1}/{2} {3}:{4}", dayStr, monthStr, year.ToString(), hoursStr, minutesStr));
}
public string SubtractMinutes(string datetime, long value)
{
//Subtract = 4000 (minutes)
//Input = "04/03/2010 17:40"
//Output = "01/03/2010 23:00"
Datetime date = new Datetime();
int day = date.GetDay(datetime);
int month = date.GetMonth(datetime);
int year = date.GetYear(datetime);
int hour = date.GetHours(datetime);
int minute = date.GetMinutes(datetime);
//Variavel de saída
string datimeOutup = string.Empty;
while (value != 0)
{
date = new Datetime().Month(month, year);
minute--;
if (minute < 0)
{
//último minuto
minute = 59;
if (hour == 0)
{
//última hora
hour = 23;
}
else
{
//Subtrair hora
hour--;
}
}
if (hour == 23 && minute == 59)
{
//Mudou o dia
day--;
}
if (day == 0)
{
//Mudou o mês
month--;
if (day == 0)
{
//Pegar último dia do mês
day = date.LastDay;
}
}
if (month == 0)
{
//Último dia do ano
year--;
month = 12;
day = date.LastDay;
}
value--;
if (value == 0)
{
return(datimeOutup = string.Format("{0}/{1}/{2} {3}:{4}",
day.ToString(), month.ToString(), year.ToString(), hour.ToString(), minute.ToString()));
}
}
//Retornando string vazia caso nao existe incremento
return(datimeOutup);
}
public string AddMinutes(string datetime, long value)
{
//Add = 4000 (minutes)
//Input = "01/03/2010 23:00"
//Output = "04/03/2010 17:40"
date = new Datetime();
int day = date.GetDay(datetime);
int month = date.GetMonth(datetime);
int year = date.GetYear(datetime);
int hour = date.GetHours(datetime);
int minute = date.GetMinutes(datetime);
//Variavel de saída
string datimeOutup = datetime;
while (value != 0)
{
date = new Datetime().Month(month, year);
minute++;
if (minute == 60)
{
//Mudou a hora
hour++;
minute = 0;
}
if (hour == 24)
{
//Mudou o dia
day++;
hour = 0;
minute = 0;
}
if (day > date.LastDay)
{
//Mudou o mes
day = 1;
month++;
hour = 0;
minute = 0;
}
if (month == 13)
{
//Mudou o ano
year++;
month = 1;
day = 1;
hour = 0;
minute = 0;
}
value--;
if (value == 0)
{
return(string.Format("{0}/{1}/{2} {3}:{4}",
day.ToString(), month.ToString(), year.ToString(), hour.ToString(), minute.ToString()));
}
}
return(datimeOutup);
}