How to disable a button after a user clicks on it

Hi Flutterflowians Hope everyone is well, safe and healthy, i have a question where i feel i hit the wall, i am on process building a job search app in my country, and i wanna know what is the option to do, so that a candidate once he applied for a job the button will turn to "applied already" ? i used the boolean but it didnt work. your answers are highly apprecieted, thank you ๐Ÿ™ƒ

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