Form Api Tableselect disable checkbox contrains

hi all, i have a tableselect element populated with data from database, and i want to enable the checkboxes on demand. i mean, if the user checked the cb1, enable the ch2, if the user checked the cb2, enable the cb3, an so on….

this is my simple code for my tableselect

$form ['tabla'] = array (
	'#type' => 'tableselect',
	'#header' => $tabla ['header'],
	'#options' => $tabla ['body']
	);

i am reading the #states property,i think that it needs to be done with that, but i cant figure it out how to do it.

thanks in advance!

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