No empty textbox

hello, is there a general procedure that allows you to write 0 as a values in empty textboxes (if the user erases instead of putting 0), so as not to have a calculation error ?

May be this can help
blocks(20)

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Hi, what IS this block, where do you find it ?

Can we make exception if want to set somme empty than others ?


yes you can allow to make some textbox empty

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thank you for this

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To get rid of the 0 at the beginning if the TextBox should be changed again afterwards, try this:

or more simply:
grafik

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Ok, but for thé second one, you nées to do this for Zach textbox…isn t it ?

It s not général…do i m wrong?

or can try like this too with clock interval of 10/100