Radio Group With Submit.

Apex 3.2
I have an updateable report based on a collection.
One of the columns is a radio group and is the only updateable column
My code for the column is currently
apex_item.radiogroup(7,seq_id,c008)
I also have a button that fires an update process.
Ideally, I would like to get rid of the button and fire the update, after the user has changed the radio group.
So I changed my code to
apex_item.radiogroup(
              7
            , seq_id
            , c008
            , null
            , null
            , null
            , 'doSubmit(''SUBMIT'')'
            , null
            , null
            , null)
If I click on a different radio group nothing happens.
If I then click on another one, the update fires, but with the value of the previous radio.
Do I need to add something else to
'doSubmit(''SUBMIT'')'
Thanks
Gus

Submitting a page or navigating to another page is not an appropriate action to take on clicking a radio button checkbox:
Setting or clearing a checkbox changes the checkbox's state with no other side-effects. Violating this guideline by associating additional actions with the change of state frequently confuses users, because they are used to configuring data in entry controls such as text boxes, radio buttons, and check boxes and then invoking an action control such as a push button to initiate the action to process the data.
Use radio buttons to select items or options before initiating a submit using an appropriate control. Use buttons and links to submit and navigate to other pages. This enables users to consider their choice and change it before submission.

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<style type="text/css">
#static-region-id label {
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</style>after that how do we need to call this css
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>
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Select List as an option of a Radio Group
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