/// <summary>Dodaje element do ListView.</summary>
/// <param name="elem">Element do dodania.</param>
/// <remarks>Nie dodaje wpisu, jeśli istnieje identyczny.</remarks>
private void AddToListView(Expense elem)
{
Func<object, object> filter = i => (i as ListViewItem).GetExpense() == elem ? elem : null;
object o = this.listView.Items.GetItem(filter);
//jesli w kolekcji elem juz jest
if(o != null)
return;
string[] list = new string[4]
{
elem.date.ToString("dd-MM-yyyy"),
elem.value.ToString("#,##0.00zł;-#,##0.00zł;0.00zł"),
elem.category,
elem.description
};
ListViewItem item = new ListViewItem(list);
item.SetExpense(elem);
int index;
for(index = 0; index < this.listView.Items.Count; index++)
{
ListViewItem i = this.listView.Items[index];
if(i.GetExpense().date.CompareTo(item.GetExpense().date) > 0)
break;
}
this.listView.Items.Insert(index, item);
}
