帮忙呀！

[lxwSniper]

下面这段代码，编译可以通过，但是运行的时候出现错误
错误如下：
Customer ID: ALFKI Name:
xiaowei.li
该行不属于与此关系相同的数据集。
请问是什么原因！
try
{
SqlConnection sqlcnt=new SqlConnection (@"Data Source=(local);Integrated Security=SSPI;"+"Initial Catalog=northwind");

sqlcnt.Open();

SqlDataAdapter sqlad=new SqlDataAdapter("Select CustomerID,CompanyName from Customers",sqlcnt);

SqlCommandBuilder sqlcmdad=new SqlCommandBuilder (sqlad);

SqlDataAdapter sqlcust=new SqlDataAdapter("Select * from Customers",sqlcnt);

SqlDataAdapter sqlorder=new SqlDataAdapter("Select * from Orders",sqlcnt);

SqlCommandBuilder sqlcmdcust=new SqlCommandBuilder (sqlcust);

SqlCommandBuilder sqlcmdorder=new SqlCommandBuilder (sqlorder);

DataSet thisset=new DataSet ();

sqlcust.Fill(thisset,"Customers");

sqlorder.Fill(thisset,"Orders");

DataRelation custordrel=new DataRelation("custord",
thisset.Tables["Customers"].Columns["CustomerID"],thisset.Tables["Orders"].Columns["CustomerID"]);

foreach (DataRow custrow in thisset.Tables["Customers"].Rows)
{
Console.WriteLine("Customer ID: " + custrow["CustomerID"] +
" Name: " + custrow["CompanyName"]);
foreach (DataRow orderrow in custrow.GetChildRows(custordrel))
{
Console.WriteLine(" Order ID: " + orderrow["OrderID"]);
}
}

custordrel.Nested =true;
}
catch(Exception err)
{
Console.Write(err.Message );
}

[marvelstack]

try
http://blog.csdn.net/zhzuo/archive/2004/08/06/67016.aspx

[lxwSniper]

try
那里有错？

[lxwSniper]

不好意思，秋枫，我无法登陆你的BLOG，麻烦你说详细点TRY 没错吧