How to add a checkbox to a table Form

[Gia]

I have form with 2 colum. 
colum A

colum B

How to add a checkbox in this form, and when checkbox = true, colum B auto = number 100. 
when checkbox = false, colum B can type text.

thanks you very much

[diogolupcosta]

Column A type: enum - values : true and false

Column B type: text. Initial value formula: IF([column a] = true, "100", "")

[Gia]

Thanks you. I will check and thank you very much

[Gia]

Hello

How to add a checkbox in this form, and when checkbox = true, column B auto = number 100.
when checkbox = false, column B can type text.

If Column B, I want Virtual Column? Can you help me.

Thanks

[dbaum]

A virtual column's value cannot be editable by the app user. Its value is always calculated based on its App formula.

If you describe what need you're trying to address using the columns and behavior you mention, someone might be able to explain a good way to accomplish it.