Fixed category selection grid issue.
Fixed category selection grid issue.

lingxyd/CMS,jtm789/CMS,andyshao/CMS,Kooboo/CMS,jtm789/CMS,lingxyd/CMS,Kooboo/CMS,Kooboo/CMS,techwareone/Kooboo-CMS,andyshao/CMS,andyshao/CMS,techwareone/Kooboo-CMS,techwareone/Kooboo-CMS,lingxyd/CMS,jtm789/CMS