C# 使用表值参数更新datatable

我不熟悉表值参数。我有两张桌子：Businessparent和Businessdetailchild。有一列：business_id，它是business表的主键，也是businessdetail的外键。两个表之间的关系：

ds.Relations.Add(new DataRelation("Business_BusinessDetail", ds.Tables["Business"].Columns["Business_ID"],ds.Tables["BusinessDetail"].Columns["Business_ID"]));

现在，在使用表值参数插入父表时，我想在插入子表之前更新主键。我的代码：

//母公司

                            SqlParameter tvpParamparent = insertCmd.Parameters.AddWithValue("@Business", newBusinessDS.Tables["Business"]);//Needed TVP
                            tvpParamparent.SqlDbType = SqlDbType.Structured;
                            insertCmd.ExecuteNonQuery();-->does not update business_id

//孩子

SqlParameter tvpParamchild = insCmdChild.Parameters.AddWithValue("@BusinessDetail", newBusinessDS.Tables["BusinessDetail"]);
                                tvpParamchild.SqlDbType = SqlDbType.Structured;/
                                insCmdChild.ExecuteNonQuery();-->it throws an error:"The MERGE statement conflicted with the FOREIGN KEY constraint "FK_BusinessDetail_Business""

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不要在参数名称中使用@字符