Maui Entry with keyboard = "Numeric" only accept numbers. Need a sequence of numbers

Question

I am making a MAUI app where I need the Entry class to accept a sequence of numbers like "10,30,222,33". When setting Keyboard = "Numeric" the Entry class only accept entering a float like "-1.23". It seems that the Entry class have a built in behavior here. I have tried to add my own behavior - but it does not overrule the built-in check. Is there a way to overrule the built-in check in Entry when keyboard = "Numeric"?