<style>

    .has-error .select2-choice, .has-error .select2-choices, .has-error.simple .select2-choice, .has-error.simple .select2-choices {

        border-color: #F40E33;

    }

</style>

<div class="col-sm-12 col-md-6 col-lg-5">

    <div class="form-group">

        <label for="jq-validation-email" class="col-sm-4 control-label">承运方：</label>

        <div class="col-sm-8">

            <select class="form-control x-select2" id="carrier" name="carrier">

                <option></option>

                #foreach($item in $!{result.suppliers})

                   <option value="$!{item.supplierId}" data-taxNo="$!{item.taxNo}">$!{item.supplier}</option>

                #end

            </select>

        </div>

    </div>

</div>

<div class="col-sm-12 col-md-6 col-lg-5">

    <div class="form-group">

        <label for="jq-validation-email" class="col-sm-4 control-label">发票号<font color=red>&nbsp;*&nbsp;</font>:</label>

        <div class="col-sm-8">

            <input class="form-control check notnull" id="invoiceNo" name="invoiceNo" type="text">

        </div>

    </div>

</div>

// select2校验：change

        $(document).on("change", ".select2-offscreen", function () {

            var value = $(this).val();

            var id = $(this).attr("id");

            if (value == null || value == "") {

                $(this).addClass("myErrorClass");

                $("#s2id_"+id).parent().addClass("has-error");

            } else {

                $(this).removeClass("myErrorClass");

                $("#s2id_"+id).parent().removeClass("has-error");

            }

        });

        // 提交按钮点击时，校验select2

        function checkSelect2IsNull(){

            var resultFlag = false;

            var num = 0;

            $("select.select2-offscreen").each(function(){

                if($(this).hasClass("myErrorClass")){

                    var id = $(this).attr("id");

                    $("#s2id_"+id).parent().addClass("has-error");

                    //$("#s2id_"+id).css("border-color", "red").css("border", "1");

                    num++;

                }

            });

            if (num == 0){

                resultFlag = true;

            } else {

                resultFlag = false;

            }

            return resultFlag;

        }