How to do form validation with select2 and Wicked? - forms

Question

I have Select2 in wicket, and I want to add form validation on it. I use atributte required, but it doesnt work. I want that select2 after unsuccessful validation have red background, or at least red border. When I try to submit form with required attribute, It dont do any validation. Select where I try to do validation is origin country. Can someone give me a point, how to achive this behaiviour? Thanks for any help.
<wicket:head xmlns:wicket="http://wicket.apache.org/">
<style>
/*.form-group .form-control {*/
/* padding: 0;*/
/* height: 33px;*/
/* }*/
.p-0 {
padding: 0px !important;
height: 30px;
}
</style>
</wicket:head>
<wicket:panel xmlns="http://www.w3.org/1999/xhtml" xmlns:wicket="http://wicket.apache.org/">
<div class="col-xs-12">
<div class="col-xs-12">
<div class="form-group">
<div class="col-sm-3">
<input type="submit" value="Request" class="btn btn-danger"/>
</div>
<div class="col-sm-3">
<label for="quotationId" wicket:id="quotationIdLabel"></label>
<div>
<input wicket:id="quotationId" type="text" size="20"/>
</div>
</div>
<div class="col-sm-3">
<label for="product" wicket:id="productLabel"></label>
<div>
<select class="form-control" wicket:id="product"/>
</div>
</div>
<div class="col-sm-3">
<label for="contract" wicket:id="contractLabel"></label>
<div>
<input type="hidden" wicket:id="contract"/>
</div>
</div>
<div class="col-sm-3" style="padding: 0">
<label for="customer" wicket:id="customerLabel"></label>
<div>
<input class="form-control p-0" type="hidden"
wicket:id="customer" />
</div>
</div>
<div class="col-sm-3">
<label for="serviceLevel" wicket:id="serviceLevelLabel"></label>
<div>
<select class="form-control" wicket:id="serviceLevel"/>
</div>
</div>
<div class="col-sm-3">
<label for="equipmentType" wicket:id="equipmentTypeLabel"></label>
<div>
<input class="form-control p-0" type="hidden" wicket:id="equipmentType"/>
</div>
</div>
<div class="col-sm-3">
<label for="commodity" wicket:id="commodityLabel"></label>
<div>
<select class="form-control" wicket:id="commodity"/>
</div>
</div>
<span class="col-sm-3">
<label for="originCountry" wicket:id="originCountryLabel"></label>
<div>
<input type="hidden" wicket:id="originCountry" required/>
</div>
</span>
<div class="col-sm-3">
<label for="originDgfStation" wicket:id="originDgfStationLabel"></label>
<div>
<input type="hidden" wicket:id="originDgfStation"/>
</div>
</div>
<div class="col-sm-3">
<label for="destinationCountry" wicket:id="destinationCountryLabel"></label>
<div>
<input type="hidden" wicket:id="destinationCountry"/>
</div>
</div>
<div class="col-sm-3">
<label for="destinationDgfStation" wicket:id="destinationDgfStationLabel"></label>
<div>
<input type="hidden" wicket:id="destinationDgfStation"/>
</div>
</div>
<div class="col-sm-3">
<label for="shippingTerms" wicket:id="shippingTermsLabel"></label>
<div>
<select class="form-control" wicket:id="shippingTerms"/>
</div>
</div>
</div>
<br/>
</div>
</div>
<div class="clearfix"></div>
</wicket:panel>

Answer 1

I think the problem is with hidden fields which can not be declared as required in HTML. You might need to use some hack to use a regular text field and hide it with CSS. See this answer: make hidden field required