PerlTk - disable entry unless a checkButton is checked

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Author

disable entry unless a checkButton is checked

jiehuang001@hotmail.com

2004-12-14, 8:59 pm

I have some code like below to allow a user to select a state and then
enter a school name. However, if the state name is not checked, the
user should not be able to type anything into the entry box. Can
someone please tell me how to modify the following code so that it
works that way?

thanks!

Jie

$frame1 -> Checkbutton(-text=>'Yes', -variable=>\$State_Name) ->pack();
$frame1 -> Entry(-textvariable=>\$School_Name) ->pack();

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