控件使用错误:component must be showing on the screen to determine its location

控件使用异常:component must be showing on the screen to determine its location
做了个自定义COMBOBOX  
然后作为EDITOR设置到一个JTABLE的某个CELL

在使用这个EDITOR的时候出现了异常
ava.awt.IllegalComponentStateException:   component   must   be   showing   on   the   screen   to   determine   its   location  

如何解决?



------解决方案--------------------
帮顶
------解决方案--------------------
setVisible(true)？