@MVCView

Use the @MVCView property if you want to use the widget as a controller view. For background information on controllers and controller views, see “Rich UI validating and formatting.”
The @MVCView property has the following fields:
retrieveViewHelper
Specifies a custom function that retrieves data directly from the widget and converts that data into a string. The function you specify for retrieveViewHelper is the default value for the retrieveViewHelper property of the controller.

The function has no parameters and returns a string.

retrieveValidStateHelper
Specifies a custom validation function that is invoked by the isValid function of the controller.

The function referenced by retrieveValidStateHelper has no parameters and returns a string or null (STRING?). Ensure that a valid outcome returns null or an empty string.

publishHelper
Specifies a function that transfers data to the widget from the model, after other controller-specific publishing functions (if any) format the data. Your specification is the default value for the publishHelper property of the controller.

The function has a string parameter (STRING in) and no return value.

publishMessageHelper
Specifies a function that runs when the widget gains focus. Your specification is the default value for the publishMessageHelper property of the controller.

The function has a string parameter (STRING in) and no return value.

For example, here is the @MVCView property in the definition of DojoCheckBox:
@MVCView{
   retrieveViewHelper = getValueAsText,
   publishHelper = setValueAsText
}
Here are the two functions referenced by the property:
private function setValueAsText(value String in)

   if("TRUE" == strlib.upperCase(value))
      setSelected (true);
   else
      setSelected(false);
   end
end
	
private function getValueAsText() returns(String)
   if(getSelected())
      return("TRUE");
   else
      return("FALSE");
   end
end

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