Filling values in text box when Checkbox is unchecked

Thank you for responding back. Appreciate it.

But in all these examples, the check box is used in a code.

What I need is like an _Afterupdate , _ Change scenario. That is, the moment the checkbox is unchecked, it should input values in three textboxes. For example , please see the following code. It is an example where when the user selects the checkbox, it automatically deletes values from those three text boxes

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Is is there any unclick function ?

Hi,

I tried the following and it does what I wanted

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Thanks for trying .

-Subbby