/// <summary>
/// Initialize data
/// </summary>
public void InititailizeData()
{
var sData = new SelectionData();
var dayCollection = sData.GetData("days.json");
var monthCollection = sData.GetData("months.json");
var yearCollection = sData.GetData("years.json");
DayStart = dayCollection;
DayEnd = dayCollection;
MonthStart = monthCollection;
MonthEnd = monthCollection;
YearStart = yearCollection;
YearEnd = yearCollection;
DataContext = this;
}