C# 将同一个DataTable复制多份到DataSet中，并对部分Table进行排序

            //创建一个表
            DataTable dt = new DataTable("Product");
            DataColumn dc = null;
 
            //添加列，赋值
            dc = dt.Columns.Add("id", Type.GetType("System.Int32"));
            dc.AutoIncrement = true;
            dc.AutoIncrementSeed = 1;
            dc.AutoIncrementStep = 1;
            dc.AllowDBNull = false;
            dt.Columns.Add("pname", Type.GetType("System.String"));
            dt.Columns.Add("price", Type.GetType("System.Double"));
            dt.Columns.Add("counts", Type.GetType("System.Double"));
            dt.Columns.Add("memo", Type.GetType("System.String"));
 
            DataRow dr = dt.NewRow();
            dr["pname"] = "red apple";
            dr["price"] = 9.9;
            dr["counts"] = 9;
            dr["memo"] = "this red apple so red.";
            dt.Rows.Add(dr);
 
            dr = dt.NewRow();
            dr["pname"] = "black apple";
            dr["price"] = 19.9;
            dr["counts"] = 8;
            dr["memo"] = "this black apple so black.";
            dt.Rows.Add(dr);
 
            dr = dt.NewRow();
            dr["pname"] = "gold apple";
            dr["price"] = 29.9;
            dr["counts"] = 7;
            dr["memo"] = "this gold apple so gold.";
            dt.Rows.Add(dr);
 
            DataSet ds = new DataSet();
            for (int i = 0; i < 3; i++)
            {
                if (i==1)
                {
                    dt.TableName = "Table" + i;
                    dt.DefaultView.Sort = "price desc,counts asc ";
                    dt = dt.DefaultView.ToTable();
                    ds.Tables.Add(dt);
                }
                else
                {
                    var renewDt = dt.Clone(); //复制表结构
                    var dtResult = dt.AsEnumerable().AsQueryable(); //获取所有源数据行数据 
                    if (dtResult.Count() > 0)
                    {
                        renewDt = dtResult.CopyToDataTable(); //数据行填充到新的表结构中
                    }
                    renewDt.TableName = "Table" + i;
                    ds.Tables.Add(renewDt);
                }
            }

参考链接：https://www.codeleading.com/article/23824561886/