Access 7000+ courses for 60 days FREE: https://pluralsight.pxf.io/c/1291657/424552/7490 Understand how to implement validation in your Flutter application in three steps: 1. Use FORM with Global Key 2. Use TextFormField with a validator property 3. Use a Button to validate form fields and display validation errors Next Video: http://bit.ly/2UnJH0h Previous Video: https://www.youtube.com/watch?v=lg1JDrPi2Lc Code for this video: http://bit.ly/2GtTAWg Full Source code files: https://bit.ly/2NINczC . . Please donate and support my work (If you think my free tutorials are better than paid ones :) - Patreon: https://bit.ly/patreon-donate - Paypal/Payoneer: sriyank123@gmail.com - UPI (only for India): smartherd@okaxis :: If you want to develop a website or a mobile app, email me your requirement at sriyank.siddhartha@gmail.com :: Free demos provided beforehand :: - Access my premium courses: https://bit.ly/sriyank-courses Free Programming courses: - Ruby Programming: https://bit.ly/smyt-r - Dart Programming: https://bit.ly/smyt-d - Kotlin Programming: https://bit.ly/smyt-k - Java Programming: https://bit.ly/smyt-j - Kotlin Coroutines: https://bit.ly/smyt-coru Free Flutter course: - Flutter App Development: https://bit.ly/2Rg7EFR Free Android courses: - Android using Kotlin: https://bit.ly/smyt-ka - Android using Java: https://bit.ly/smyt-ja - Android Material Design: https://bit.ly/2SMJqU6 - Android Jetpack Architecture: https://bit.ly/yt-j - Android Multiple Screen Support: https://bit.ly/smyt-mss - Android Retrofit: https://bit.ly/2Ee6GHn More free programming courses: - https://bit.ly/smy-list Check out my website: - https://bit.ly/smartherd Let's get in touch! [Sriyank Siddhartha] LinkedIn: https://bit.ly/sriyank-linkedin Facebook: https://bit.ly/smartherd-facebook Instagram: https://bit.ly/sriyank-instagram Twitter: https://bit.ly/sriyank-twitter Github: https://bit.ly/smartherd-github --- Thank you for your love and support ---