这个组合绑定了，你是否有使用afterupdateevent的代码？

Is this combo bound and do you have code using the afterupdateevent?

是的，它被绑定到一个表。至于AfterUpdate代码如下：

Yes it is bound to a table. As for the AfterUpdate Code is the following:

另一个要查看的地方是'OnCurrent事件，看看你是否正在使用代码设置值。

Another place to look would be in the form''s OnCurrent event to see if you are setting the value using code.