Abdelrahman - please see https://www.mathworks.com/matlabcentral/answers/458098-difference-between-valuechangedfcn-valuechangingfcn which is near identical to your question.
matlab app designer: valuechanged vs valuechanging callbacks?
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Hi,
In app designer, when I define callbacks, I get two options: vlauechanged and valuechanging callbacks. what's the difference between the two?
Thanks
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