How do you change the value inside of a textfield flutter?

Question

I have a TextEditingController where if a user clicks a button it fills in with information. I can\'t seem to figure out how to change the text inside of a

Answer 1

_mytexteditingcontroller.value = new TextEditingController.fromValue(new TextEditingValue(text: "My String")).value;

This seems to work if anyone has a better way please feel free to let me know.