How do you validate the input of a TextField in a Flutter form?
- Implementing a custom 'validate' method
- Using the 'inputValidation' property
- Using the 'validator' property
- Utilizing the 'inputCheck' callback function
To validate the input of a TextField in a Flutter form, the 'validator' property is used. It takes a function that performs the validation logic. This function is called each time the user tries to submit the form, allowing developers to check if the input meets specific criteria. Implementing effective validation is crucial for ensuring data integrity and a positive user experience in Flutter applications.
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