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Is it possible to prevent changes once a radio button is selected?

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    #1

    Is it possible to prevent changes once a radio button is selected?

    I am creating a math test online.

    If I allow the user to click a button which shows the answer for each question after they have answered the question, is there a way to prevent the user from changing their answer once they have selected to see the correct answer?

    Thanks for the help.
    Jay
    Jay Talbott
    Lexington, KY

    Tags: None
    #2
    Re: Is it possible to prevent changes once a radio button is selected?

    Hi Jay,

    Yes.

    Using the Object Explorer to find out what properties can be manipulated makes it easy.

    use something like the following in the OnChange event of the radio button field or the button's OnPush event...wherever you need it.

    topparent:Your_Field_Name.Object.Enabled =.F.

    To toggle it you can add a temporary button with the opposite script...or use the object explorer to set it back (another nice use of this feature).

    topparent:Your_Field_Name.Object.Enabled =.T.
    Mike
    __________________________________________
    It is only when we forget all our learning that we begin to know.
    It's not what you look at that matters, it's what you see.
    Henry David Thoreau
    __________________________________________



    Comment

      #3
      Re: Is it possible to prevent changes once a radio button is selected?

      When they press Submit on that qestion page, set a protected session variable to indicate that question page is 'done'. They may press the Back button and change their button object selection, you can't control that. But when they press the Submit button (now for a second time) you can check the session variable and react accordingly. Also, capture the fact that they did try to change their answer, and warn them along with saying "you can't change your answers".
      Steve Wood
      See my profile on IADN

      Comment

        #4
        Re: Is it possible to prevent changes once a radio button is selected?

        :o :o I did not notice this was a Web question...sorry! (and thanks Steve for bailing me out before anyone responded!)
        Mike
        __________________________________________
        It is only when we forget all our learning that we begin to know.
        It's not what you look at that matters, it's what you see.
        Henry David Thoreau
        __________________________________________



        Comment

          #5
          Re: Is it possible to prevent changes once a radio button is selected?

          Thanks for your answer, Steve. Now for question version 1.5.

          Is it possible to do this with more than one question on the page? I would like to create a dialog component with 6 questions on a pane, but the component would only have one submit button on the last pane, correct?

          So is there any way to "freeze" the response once the correct answer is chosen?

          Would I in have to create a separate component for each question, and place 6 components on a page? I think that having one component with multiple panes would look best.

          Thanks again.
          Jay
          Jay Talbott
          Lexington, KY

          Comment

            #6
            Re: Is it possible to prevent changes once a radio button is selected?

            You mean they cannot change their mind the moment they make a selection? You are a tough tester!! Without using JavaScript (and I don't know what), I think you would have to have a submit for each, or just one per page. On the Alpha server, nothing really happens when you just select a radion button; the server does not know it was selected until you press Submit.

            Now, another ideas is to change your answers to be actual hyperlinks. Maybe a graphic or text link next to each text answer. They have to click the image/link to submit their answer. NOW you can do something with their 'selection'.
            Steve Wood
            See my profile on IADN

            Comment

              #7
              Re: Is it possible to prevent changes once a radio button is selected?

              Actually, this is practice test which allows the user to see the correct answer if they want to. When they see the answer, I do not want them to change their answer. But maybe I am making too big of a deal about this. If they change the answer, they are only cheating themselves.

              If you want to see the test, it is located here:

              http://webapps.myvnc.com/c-net/math_quiz.a5w

              Thanks for your help.
              Jay
              Jay Talbott
              Lexington, KY

              Comment

                #8
                Re: Is it possible to prevent changes once a radio button is selected?

                Maybe you can do like in the Temple of Doom where the evil guy chose the wrong chalice and suddenly aged 200 years, turning in to dust along with a sudden windstorm. And then, as in the movie, the moderator could nonchalantly say "He chose unwisely, [OK, your turn"].
                Steve Wood
                See my profile on IADN

                Comment

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