Class Validation
Page Summary
A Validation object defines the validation rule for an attached widget.
Validation is available for Google Chat apps and Google Workspace add-ons.
The
setCharacterLimitmethod sets the maximum number of characters allowed in a widget.The
setInputTypemethod sets the type of input expected for a widget.
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.
constvalidation=CardService.newValidation().setCharacterLimit('10').setInputType(CardService.InputType.TEXT);
Methods
| Method | Return type | Brief description |
|---|---|---|
set | Validation | Sets the character limit of the widget. |
set | 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 |
|---|---|---|
character | Integer | The character limit to set. Note that this restriction is only effective forText 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 |
|---|---|---|
input | Input | TheInput to set. |
Return
Validation — This object, for chaining.
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Last updated 2025-12-03 UTC.