I'm working on ASP with MVC 4, and I create a list of dates from the data entered by the user. For example, the user enters the day of the month in which a certain occurrence will be made. It also inserts the start date where it will start and the end date to generate the dates. For example:
The user enters Day% with% start date to 19 and end date to 05/02/2014
In the controller I have to generate a list of dates of type:
02/19/2014
03/19/2014
04/19/2014
You can use AddMonths () , several languages have a method similar to that implemented.
Follow the example based on the current date, and increasing it by two months:
DateTime now = DateTime.Now;
DateTime modifiedDatetime = now.AddMonths(2);
In your case, the difference would be in creating the start date based on user input and storing it in a list.
var DataGerada = new DateTime(DataIni.Year, DataIni.Month, dia);
int i = DateTime.Compare(DataGerada,DataFim);
if( i > 0){
//DataGerada é maior do que DataFim, interrompa processo e retorne a lista
}else{
//DataGerada é menor ou igual que DataFim, adicione DataGerada à lista
}
//A cada iteração execute novamente DataGerada.AddMonths(1)
Using the approach suggested by Guilherme, I made a small implementation of a method that returns dates in the desired range.
public List<DateTime> GerarDatas(DateTime inicio, DateTime fim, int dia)
{
List<DateTime> datas = new List<DateTime>();
DateTime data = inicio.AddDays(dia - inicio.Day);
if (inicio.Day > dia)
{
data = data.AddMonths(1);
}
while (data < fim)
{
datas.Add(data);
data = data.AddMonths(1);
}
return datas;
}
How to use:
List<DateTime> datas = program.GerarDatas(new DateTime(2014, 2, 5), new DateTime(2014, 5, 20), 19);
foreach (DateTime data in datas)
{
Console.WriteLine(data.ToShortDateString());
}