Diffrent lenght -char.number (not width) within a cell of type InputField

Dear All,

I deal with the following problem in a table:

I would like to have in a column a dynamically-define Input field(number of characters). I want for example that in one cell user could insert only 30 char. in the other row i.e. max. 50 characters etc... Do you think that it is possible?

Anybody has an idea?

Thank you in advance

Bogumila