高手看过来，这个datagrid的问题怎么回事啊？郁闷中！

Question

应该是DataSet中DataTable之间的父子关系建立失败

Answer 1

有啊，打个比方说parent有字段a,b(关键字a)  child 有字段b,c (关键字b),this.dataSet11.parent.ChildRelations.Add("order",this.dataSet11.parent.b,this.dataSet11.child.b);
BindingManagerBase 
bms=this.dataGrid1.BindingContext[this.dataSet11,"parent"];
BindingManagerBase bms2=this.dataGrid2.BindingContext[this.dataSet11,"parent.order"];
 this.dataGrid1.SetDataBinding(this.dataSet11,"parent");
this.dataGrid2.SetDataBinding(this.dataSet11,"parent.order");
这段代码有什么问题呢？？