private void CalculateCostsDates()
{
var categories = CostCollection.GroupBy(x => x.CategoryName).Select(c => c.First()).Select(x => x.CategoryName);
foreach (var cat in categories)
{
Helpers.CostListView[] costs = CostCollection.Where(x => x.CategoryName.Equals(cat)).OrderBy(x => x.BegginingDate).ToArray();
costs[costs.Length - 1].EndingDate = new DateTime(1900, 1, 1);
for (int i = 0; i < costs.Length - 1; i++)
{
costs[i].EndingDate = costs[i + 1].BegginingDate.AddDays(-1);
}
}
}
private void AddNewCost(object param)
{
if (SelectedCategoryName == null)
{
LabelError = "Wybierz kategorię";
return;
}
if (SelectedUnitName == null)
{
LabelError = "Wybierz jednostkę";
return;
}
decimal uc;
if (!decimal.TryParse(UnitCost, out uc) && uc <= 0)
{
LabelError = "Podaj poprawny koszt";
return;
}
if (CostBeggining == null)
{
LabelError = "Podaj poprawną datę początku obowiązywania";
return;
}
if (SelectedGroupName == null)
{
LabelError = "Wybierz grupę";
return;
}
var q = CostCollection.Where(x => x.BegginingDate.Date.CompareTo(CostBeggining.Date) == 0 && x.CategoryName == SelectedCategoryValue && x.CostGroup == SelectedGroupName).Count();
if (q > 0)
{
LabelError = "Istnieje już rekord z taką samą kategorią i datą";
return;
}
LabelError = null;
var endingDate = new DateTime(1900, 01, 01);
var c = new Helpers.CostListView()
{
BegginingDate = CostBeggining, CategoryName = SelectedCategoryValue, Cost = uc, CostUnit = SelectedUnitName, EndingDate = endingDate, CostGroup = SelectedGroupName
};
CostCollection.Add(c);
CalculateCostsDates();
}