Some Properties of Form Widget

  • key: A GlobalKey that uniquely identifies the Form. You can use this key to interact with the form, such as validating, resetting, or saving its state.
  • child: The child widget that contains the form fields. Typically, this is a Column, ListView, or another widget that allows you to arrange the form fields vertically.
  • autovalidateMode: An enum that specifies when the form should automatically validate its fields.

Flutter – Build a Form

The Form widget in Flutter is a fundamental widget for building forms. It provides a way to group multiple form fields together, perform validation on those fields, and manage their state. In this article, we are going to implement the Form widget and explore some properties and Methods of it. A sample video is given below to get an idea about what we are going to do in this article.

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Some Properties of Form Widget

key: A GlobalKey that uniquely identifies the Form. You can use this key to interact with the form, such as validating, resetting, or saving its state. child: The child widget that contains the form fields. Typically, this is a Column, ListView, or another widget that allows you to arrange the form fields vertically. autovalidateMode: An enum that specifies when the form should automatically validate its fields....

Some Methods of Form Widget

validate(): This method is used to trigger the validation of all the form fields within the Form. It returns true if all fields are valid, otherwise false. You can use it to check the overall validity of the form before submitting it. save(): This method is used to save the current values of all form fields. It invokes the onSaved callback for each field. Typically, this method is called after validation succeeds. reset(): Resets the form to its initial state, clearing any user-entered data. currentState: A getter that returns the current FormState associated with the Form....

Basic Example of Form Widget

Dart Form(   key: _formKey, // GlobalKey   autovalidateMode: AutovalidateMode.onUserInteraction,   child: Column(     children: [       // Form fields go here     ],   ), )...

Required Tools

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Step By Step Implementations

To build this app, you need the following items installed on your machine:...