how to change gridpanel backgroud

[luoyu]

I have a problem with the gridpanel.I want to change the gridpanel the backgrond when i drag the data in the gridpanel.so i use

gridpanel.getEl().addClass("mycss");,but it can not work.so i try to use
gridpanel.getEl().applyStyles({
'background-color' : '#FFFF00'
});
but it also can not work.How can i do .
Thanks very much.

[Condor]

Yes, it does work, but your css rule that uses mycss is wrong.

Try:

.mycss .x-grid3-row {background-color: #ff0;}

[luoyu]

thank you very much.By your suggestion,I resolve my problem.Thank you very much.