在jquery中选择单选按钮时如何验证文本框？

如何解决在jquery中选择单选按钮时如何验证文本框？

我有单选按钮，因此我想在用户选择单选按钮时验证文本框。必须提示用户插入通过单选按钮验证的详细信息。例如单选按钮（EmailAddress）。

为清晰起见，让我分享以下逻辑。电子邮件消息必须是此Example: [e-mail],[e-mail]。我想知道当用户选择这些单选按钮并需要一些帮助时，JQuery方面可以验证这些单选按钮。

  <div class="form-group row">
                                <div class="col-sm-4">
                                    @Html.RadioButtonFor(m => m.CourseAdmin.EmailAddress,"EmailAddress")
                                    <label for="EmailAddress" class="col-form-label">EmailAddress</label>
                                </div>
                                <div class="col-sm-3">
                                    @Html.RadioButtonFor(m => m.CourseAdmin.LoginID,"LoginID")
                                    <label for="LoginID" class="col-form-label">LoginID</label>
                                </div>

                                <div class="col-sm-3">
                                    @Html.RadioButtonFor(m => m.CourseAdmin.SIS_ID,"SIS_ID")
                                    <label for="SIS_ID" class="col-form-label">SIS_ID</label>
                                </div>

                                <div class="col-sm-12">
                                    @Html.TextAreaFor(m => m.eNtsaAdmin.eNtsaTextAreadisc,new { @class = "form-control",style = "font-size: medium; font-weight: bold; width:450px" })

                                </div>
                                <hr />


                            </div>
  <div class="modal-footer">
                                <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
                                <button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModalCenter" id="btnNext">
                                    Next
                                </button>
                            </div>
<script type="text/javascript">  
    $(document).ready(function () {  
        // Fire when radio button clicked  
        $("#LoginID,#SIS_ID").bind("change",function () {  
            checkdata();  
        });  
  
        // Fire when we enter anything in the textBox  
        $("#eNtsaTextAreadisc").bind("input",function () {  
            checkdata();  
        });  
    });  
  
    //here we check both radio button clicked and textBox filled with some information  
    function checkdata() {  
        if ($("#LoginID").prop("checked") && $("#SIS_ID").prop("checked") && $("#eNtsaTextAreadisc").val().length > 0) {  
            $("#btnNext").removeAttr("disabled");  
        }  
        else {  
            $("#btnNext").attr("disabled","disabled");  
        }  
    }  
</script>