Please try is as below.
Note : You can replace below dates as you wish. :)
using System;
using System.Collections.Generic;
public class Program
{
public static void Main()
{
List<DateTime> allDates = new List<DateTime>();
for (DateTime date = new DateTime(2014,02,14); date <= new DateTime(2014,02,20); date = date.AddDays(1))
{
allDates.Add(date);
}
foreach (DateTime d in allDates)
{
Console.WriteLine(d);
}
}
}
OUTPUT
2/14/2014 12:00:00 AM
2/15/2014 12:00:00 AM
2/16/2014 12:00:00 AM
2/17/2014 12:00:00 AM
2/18/2014 12:00:00 AM
2/19/2014 12:00:00 AM
2/20/2014 12:00:00 AM
LIVE DEMO : .NET Fiddle