如何使用Jquery将多个选定的复选框项目放入列表框中 [英] How Do I Get Multiple Selected Checkbox Item Into A Listbox Using Jquery

问题描述

我有这个代码用于将多个选中的项目添加到MVC5列表框但是它不起作用

i have this code for adding multiple checked item to MVC5 Listbox but it is not working

$('#addRecipientList').click(function () {
    var chkBox = $('#chooseRecipient').val();
    var isChecked = $('#chooseRecipient').is(":checked");
    var lst = $("#recipientList");
    var options = $("#recipientList option");
    var arr = [];
    var alreadyExist = false;

    if (isChecked) {

        $(options).each(function () {
            if ($(this).val() == chkBox) {
                $("#errormsg").text('Mobile Number already exist')
                //alert("Mobile Number already exists");
                alreadyExist = true;
                uncheck();
                $('#loginForm').hide();
                $("#errormsg").fadeOut(5000);
                $('#chooseRecipient').checked = false;
                return;
            }

        });
       
        if (!alreadyExist)

            $(lst).append('<option value="' + chkBox + '">' + chkBox + '</option>');
        
        return true;
    }
});

请问有什么我想念的吗？



帮助，谢谢您的时间

please is there anything i am missing?

help please thank you for your time

推荐答案

（' < span class =code-string>＃addRecipientList'）。click（ function （）{
var chkBox =

('#addRecipientList').click(function () { var chkBox =

（' ＃chooseRecipient'）。val（）;
var isChecked =

('#chooseRecipient').val(); var isChecked =

（' ＃chooseRecipient'）。是（ ：checked）;
var lst =

('#chooseRecipient').is(":checked"); var lst =

这篇关于如何使用Jquery将多个选定的复选框项目放入列表框中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！