/// <summary> /// 获得数据列表 /// </summary> public List<MyBookShop.Model.Cart> DataTableToList2(DataTable dt) { List<MyBookShop.Model.Cart> modelList = new List<MyBookShop.Model.Cart>(); int rowsCount = dt.Rows.Count; if (rowsCount > 0) { MyBookShop.Model.Cart model; for (int n = 0; n < rowsCount; n++) { model = new MyBookShop.Model.Cart(); if (dt.Rows[n]["Id"].ToString() != "") { model.Id = int.Parse(dt.Rows[n]["Id"].ToString()); } if (dt.Rows[n]["UserId"].ToString() != "") { int UserId = int.Parse(dt.Rows[n]["UserId"].ToString()); model.User = usersBll.GetModel(UserId); } if (dt.Rows[n]["BookId"].ToString() != "") { int BookId = int.Parse(dt.Rows[n]["BookId"].ToString()); model.Book = booksBll.GetModel(BookId); } if (dt.Rows[n]["Count"].ToString() != "") { model.Count = int.Parse(dt.Rows[n]["Count"].ToString()); } modelList.Add(model); } } return modelList; }
/// <summary> /// 得到一个对象实体 /// </summary> public MyBookShop.Model.Cart DataRowToModel(DataRow row) { MyBookShop.Model.Cart model=new MyBookShop.Model.Cart(); if (row != null) { if(row["Id"]!=null && row["Id"].ToString()!="") { model.Id=int.Parse(row["Id"].ToString()); } if(row["UserId"]!=null && row["UserId"].ToString()!="") { model.UserId=int.Parse(row["UserId"].ToString()); } if(row["BookId"]!=null && row["BookId"].ToString()!="") { model.BookId=int.Parse(row["BookId"].ToString()); } if(row["Count"]!=null && row["Count"].ToString()!="") { model.Count=int.Parse(row["Count"].ToString()); } } return model; }
/// <summary> /// 得到一个对象实体 /// </summary> public MyBookShop.Model.Cart GetModel(int Id) { StringBuilder strSql=new StringBuilder(); strSql.Append("select top 1 Id,UserId,BookId,Count from Cart "); strSql.Append(" where Id=@Id"); SqlParameter[] parameters = { new SqlParameter("@Id", SqlDbType.Int,4) }; parameters[0].Value = Id; MyBookShop.Model.Cart model=new MyBookShop.Model.Cart(); DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters); if(ds.Tables[0].Rows.Count>0) { return DataRowToModel(ds.Tables[0].Rows[0]); } else { return null; } }