递归获取下级目录

清疚 2022-08-11 00:45 217阅读 0赞

public class ProductCategory
        {
            /// <summary>
            /// ID
            /// </summary>
            public int Id { get; set; }
    
            /// <summary>
            /// 类目名称
            /// </summary>
            public string Name { get; set; }
    
            /// <summary>
            /// 下级类目
            /// </summary>
            public IList<ProductCategory> SubProductCategorys { get; set; }
        }

/// <summary>
            /// 获得下级类目
            /// </summary>
            /// <param name="pid">父ID</param>
            /// <returns>类目列表</returns>
            private IList<ProductCategory> GetChildProductCategory(int pid)
            {
                using (LypfEntities dbContext = new LypfEntities())
                {
                    try
                    {
                        var productCategorys = from c in dbContext.psort
                                               where c.s == 0 && c.pid == pid
                                               select new {Id = c.id,Name = c.name};
                        IList<ProductCategory> productCategoryList = new List<ProductCategory>();
                        foreach (var item in productCategorys)
                        {
                            ProductCategory productCategory = new ProductCategory() { 
                                Id = item.Id,
                                Name = item.Name,
                                SubProductCategorys = GetChildProductCategory(item.Id)
                            };
                            productCategoryList.Add(productCategory);
                        }
                        return productCategoryList;
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                }
            }