private static IEnumerable<CategoryDto> GetChildren(string parentId, CategoryDataRow[] categoryRows)
{
return categoryRows
.Where(c => c.ParentId == parentId)
.Select(c => new CategoryDto(c.Id, c.Title, GetChildren(c.Id, categoryRows).ToArray()));
}
private static CategoryDto BuildHierarchy(CategoryDataRow[] categoryRows)
{
return new CategoryDto(null, null, GetChildren(null, categoryRows).ToArray());
}
