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Behavior

Forms behavior refers to the way in which user input is handled and validated within a form. It plays a crucial role in providing a seamless and user-friendly experience for form interactions.

Validation feedback​

When data is validated, a validation result is provided to guide users to correct invalid data, convey a sense of security, warn about critical inputs or inform about special features of an input.

We support 4 types of validation feedback:

  1. Valid
  2. Info
  3. Warning
  4. Invalid

Form submission strategies​

When it comes to handling form submissions, there are three common strategies to ensure a seamless user experience and maintain data integrity:

  1. Disable submit button
  2. Always enable submit button
  3. Submit on blur

A combination of strategy 1 and 3 is possible.

Strategy 1: Disable submit button​

In this strategy, the submit button is disabled until all required input controls are filled or controls are valid. This helps prevent users from submitting invalid data to the server.

  • Pro: Prevents sending invalid data to the server.
  • Pro: Communicates issues with the form.
  • Con: Doesn't specify missing or incorrect fields which can be frustrating.
  • Con: Some screen readers may not read out the disabled submit button, causing confusion.

Strategy 2: Always enable submit button​

In this strategy, the submit button is always enabled, allowing users to click it at any time.

  • Pro: Users can always click the submit button and receive feedback on missing or invalid data.
  • Con: The form may appear complete even with missing or invalid data.
  • Con: Unnecessary data may be sent to the server, consuming resources.

Strategy 3: Submit on blur​

In this strategy, there is no need for a submit button. The form is automatically submitted after the user finishes inputting and leaves the control.

  • Pro: Provides a seamless user experience by automatically submitting the form when the user moves away from a field.
  • Pro: Provides immediate feedback without the need for a submit button.
  • Con: Users may accidentally trigger form submission by navigating away from a field unintentionally.
  • Con: Handling validation and error messages without a submit button can be challenging.
  • Con: Users may not have a chance to review and confirm their input before submission.

For more information on form validation, refer to the validation chapter.