public void RemoveSubCategories(IList list)
{
var itemsToDelete = new List <Item>();
var subCategoriesToDelete = list.Cast <SubCategory>().ToList();
foreach (var subCategory in subCategoriesToDelete)
{
itemsToDelete.AddRange(
_shop.Items.Where(
x =>
x.CategoryId == SelectedCategoryIndex &&
x.SubCategoryId == SubCategories.IndexOf(subCategory)
)
);
}
_shop.Items.RemoveRange(itemsToDelete);
#region MoveItems
var index = -1;
for (int i = 0; i < _shop.Items.Count; i++)
{
if (_shop.Items[i].CategoryId == SelectedCategoryIndex)
{
index++;
int subCat = _shop.Items[i].SubCategoryId;
int j = i;
for (; j < _shop.Items.Count; j++)
{
if (subCat == _shop.Items[j].SubCategoryId)
{
while (_shop.Items[j].SubCategoryId > index)
{
_shop.Items[j].SubCategoryId--;
}
}
else
{
break;
}
}
i = j - 1;
}
}
#endregion
_subCategories.RemoveRange(subCategoriesToDelete);
NotifyOfPropertyChange(nameof(SubCategories));
NotifyOfPropertyChange(nameof(Items));
}
