Hold the value or dataframe

[GMCobraz]

Dear all,

Good day.
I am new to python.

I am trying to program a software to do some calculation.
I am separating calculation button and export button.

It works fine for calculation button.
But when I click export, it shows error. I checked the debug value, it shows the value calculated previoulsy is gone.

So I wish to ask is there a way to retain those value until I click export?

Thank you very much.

Regards,
GMC

[DPaul]

If you are clicking, you have programmed a GUI.
There is no way we can give advice without seeing the code.
Note that there is also a GUI forum below this one.
Paul