Help for block button for recognize if is empty or is there text or number

hi, i dont know how to build a form if its empty or get text or number for active a block control to active other function. with a condicional if is empty or is there numbers or text. someone can helpme?

I'm not entirely clear as to what you want, but is it this?

yes, thanks other question, when you use the block text to change a global value ┬┐what block give to value if is string or number in the global variable?. is get or its set?.

It does not matter what datatype the variable is of. You use .get to retrieve the value and .set to store a value.