Grid Problem about setStyle();

I’m using your Pro ver.

but, i have Critical problem.

grid.setStyle("",“border-right:1px solid #A4BED4; border-bottom:1px solid #A4BED4;”,"","");

for show grid line…

but, setStyle() is used to make error…

all browser…

Unfortunately the issue cannot be reconstructed locally.
Your code works well for us. If issue still occurs - please, provide any kind of sample of your code so we can reproduce the issue.