[TYPO3-mvc] Fluid - Setting an attribute in viewHelper by condition

[Daniel Lienert]

Hello list,

i wonder if it is possible to set a viewhelper attribute by an inline 
if-Viewhelper condition.In the following example, i want to set the 
additionalAttribute "onchange: submit()" conditional by an object property:

<f:form.checkBox name="name" value="value" 
additionalAttributes="{f:if(condition: {object.submitOnChange} then: 
'{onchange : 'submit()'}')}" />
<f:form.checkBox name="name" value="value" 
additionalAttributes="{onchange : {f:if(condition: 
{object.submitOnChange} then: 'submit()')}}" />

But both variants produce the error #1237900529: The argument 
"additionalAttributes" was registered with type "array", but is of type 
"string" in view helper "Tx_Fluid_ViewHelpers_Form_CheckboxViewHelper".

Is there any posibility to do this?


Thanks in advance,
Daniel