“Using a Field Strategy” documentation

[leangermany]

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I found an issue in this Lit Binder Field Strategy Docs. Using Vaadin 24.6.12.

When overriding the getFieldStrategy method and no model?: AbstractModel is given to the super call, the Checkbox value binding is broken. Changing the value in the form does result in a wrong value put in the bean:

• true/checked is false
• false/not checked is undefined

Suggested change in the documentation would be:

  override getFieldStrategy(element: any, model?: AbstractModel): FieldStrategy {
    if (element.localName === 'my-text-field' && model instanceof StringModel) {
      return new MyTextFieldStrategy(element);
    }
-  return super.getFieldStrategy(element);
+  return super.getFieldStrategy(element, model);
  }
}

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