Question

My viewmodel has an enum with three possible values:

public enum PollFrequency {
    SixHours, TwentyFourHours, Weekly
}

public class AlertViewModel {
    private PollFrequency pollFrequency;
    public PollFrequency getPollFrequency(){
        return pollFrequency;
    }
    public void setPollFrequency(PollFrequency pollFrequency){
        this.pollFrequency = pollFrequency;
    }

    public AlertViewModel(){
        pollFrequency = PollFrequency.TwentyFourHours;
    }
}

My JSP page has a set of three radio buttons:

<input checked="<c:if test="${viewModel.pollFrequency eq 'SixHours'}">checked</c:if>" type="radio" name="checkEvery" value="checkEvery6Hours" /> 6 Hours<br />
<input checked="<c:if test="${viewModel.pollFrequency eq 'TwentyFourHours'}">checked</c:if>" type="radio" name="checkEvery" value="checkEvery24Hours" /> 24 Hours<br />
<input checked="<c:if test="${viewModel.pollFrequency eq 'Weekly'}">checked</c:if>" type="radio" name="checkEvery" value="checkEveryWeek" /> Weekly

I’d like to set the checked property of the radio buttons based on the enum value, but currently the last radio button is always checked. I found some threads on how to do it with springsource, but I’m not using that. Is there a simple solution to this?

Answer 1

Try this,

<input type="radio" <c:if test="${model.thing eq 'Thing1'}">checked</c:if> name="thing" value="thing1" /> Thing1<br />
<input type="radio" <c:if test="${model.thing eq 'Thing2'}">checked</c:if> name="thing" value="thing2" /> Thing2<br />
<input type="radio" <c:if test="${model.thing eq 'Thing3'}">checked</c:if> name="thing" value="thing3" /> Thing3