Hi there,
I need some help, again.
How to save the result to the log file in desired conditions by checking the data entered in the textbox?

For example, how can I ensure that the data is saved in the log file only when a value between 0 and 100 is entered in the text box, and that the user is warned when any data is entered or a character is written outside of mentioned values?

In the example below, I was able to save the data entered in textbox, but I could not check the data type.
I'll be happy if you can help me.
Yours truly,

Here is the example: https://we.tl/t-uS1ItW0oRb