change the backgroud color of button when it is selected in blackberry

I want to change the color of button when it is selected , using blackberry programming by def开发者_运维百科ault its borders become red , I want to change its background color light gray when it is selected .

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Why don't you try custom buttons:

http://swati-blackberry.blogspot.com/2011/01/how-to-create-custom-button-field-in.html