Class Validation

AI-generated Key Takeaways

• Validation objects define rules for widgets, such as character limits and input types, ensuring data integrity.

• They are available for Google Chat apps and Workspace Add-ons, offering developers control over user input.

• Developers can leverage methods like setCharacterLimit and setInputType to customize validation behavior.

• The setCharacterLimit method specifically applies to TextInput widgets, enforcing maximum character input.

• Similarly, setInputType dictates the accepted input type, enhancing user experience and data accuracy.

Validation

An object that defines the validation rule for the widget that it is attached to.

Available for Google Chat apps and Google Workspace add-ons.

const validation = CardService.newValidation().setCharacterLimit('10').setInputType(
    CardService.InputType.TEXT);

Methods

Method	Return type	Brief description
setCharacterLimit(characterLimit)	Validation	Sets the character limit of the widget.
setInputType(inputType)	Validation	Sets the input type of the widget.

Detailed documentation

setCharacterLimit(characterLimit)

Sets the character limit of the widget.

Available for Google Chat apps and Google Workspace add-ons.

Parameters

Name	Type	Description
characterLimit	Integer	The character limit to set. Note that this restriction is only effective for TextInput and is ignored for other widgets.

Return

Validation — This object, for chaining.

---

setInputType(inputType)

Sets the input type of the widget.

Available for Google Chat apps and Google Workspace add-ons.

Parameters

Name	Type	Description
inputType	InputType	The InputType to set.

Return

Validation — This object, for chaining.