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Customised Error Message for default DateValidator in Wicket

I'm using DateValidator class to validate the date entered by user. I'm getting generic error message for this. Can I customise the error message without creating a separate Validator class.

Solution

  • Yes, for example if you have the following kind of page.

    MyPage.html

    <wicket:page>
    <form wicket:id="form">
        <input type="text" wicket:id="startDate" />
        <input type="text" wicket:id="endDate" />
    </form>
</wicket:page>

    Then you add next to your java class a properties file named MyPage.properties in which you add the following entries.

    MyPage.properties

    form.startDate.DateValidator.minimum=<message for minimum startDate>
form.startDate.DateValidator.maximum=<message for maximum startDate>
form.endDate.DateValidator.minimum=<message for minimum endDate>
form.endDate.DateValidator.maximum=<message for maximum endDate>

    You can use variables like ${input} or ${label} to be substituted in the feedback messages.

    A good place to start is in the Wiki of Apache Wicket at https://cwiki.apache.org/confluence/x/N1IB