public static GroupedTreeList <T, TId, TSortKey, TGroupKey> Create <TId, TSortKey, TGroupKey>(
SelectId <T, TId> selectId,
SelectParentId <T, TId> selectParentId,
IdComparer <TId> idComparer,
SelectSortKey <T, TSortKey> selectSortKey,
SortKeyComparer <TSortKey> sortKeyComparer,
SelectGroupKey <T, TGroupKey> selectGroupKey,
GroupKeyComparer <TGroupKey> groupKeyComparer,
IEnumerable <TGroupKey> groups,
GroupedTreeSeparator separator) where TId : struct
{
return(new GroupedTreeList <T, TId, TSortKey, TGroupKey>(
selectId, selectParentId, idComparer, selectSortKey, sortKeyComparer, selectGroupKey, groupKeyComparer, groups,
separator));
}
private GroupedTreeList <Item, int, int, int> GenerateTestTree(GroupedTreeSeparator separator)
{
var list = GroupedTreeList <Item> .Create(
x => x.Id, x => x.ParentId, (x, y) => x == y,
x => x.SortKey, (lhs, rhs) => lhs - rhs,
x => x.GroupKey, (lhs, rhs) => lhs == rhs,
new[] { 0, 1, 2, 3, 4 },
separator);
foreach (var item in GenerateTestItems())
{
list.Upsert(item);
}
return(list);
}
