如何从javascript中的多个复选框中选择一个复选框 [英] How to select one checkbox from multiple checkboxes in javascript

问题描述

<asp:checkbox id="Checkbox1" runat="server" CssClass="Checkbox" onclick="fnCheckOne(this);">
<asp:checkbox id="Checkbox2" runat="server" CssClass="Checkbox" onclick="fnCheckOne(this);"></asp:checkbox>
<asp:checkbox id="Checkbox3" runat="server" CssClass="Checkbox" onclick="fnCheckOne(this);"></asp:checkbox>

< br $> b $ b

我尝试过：

What I have tried:

function fnCheckOne(me) {
    debugger;
    alert("HI");
    me.checked = true;
    var chkary = document.getElementsByTagName('input');
    for (i = 0; i < chkary.length; i++) {

        if (chkary[i].type =='checkbox') {


            if (chkary[i].parentElement.groupname == 'grup1') {
                if (chkary[i].id != me.id)
                    chkary[i].checked = false;
            }
        }
    }
}

推荐答案

<div>
           <asp:CheckBox ID="cb1" runat="server"   />
          <asp:CheckBox ID="cb2" runat="server"   />
          <asp:CheckBox ID="cb3" runat="server" />
</div>


<script>

        window.onload = function () {

          

            (function () {
                document.getElementById("cb1").onclick = function () {

                    checkClickedCheckBoxTrue("cb1", "cb2", "cb3")
                   
                };
            })();
            (function () {
                document.getElementById("cb2").onclick = function () {

                    checkClickedCheckBoxTrue("cb2", "cb1", "cb3")
                   
                };
            })();
            (function () {
                document.getElementById("cb3").onclick = function () {
                    checkClickedCheckBoxTrue("cb3", "cb2", "cb1")
                   
                };
            })();
            

        };


        function checkClickedCheckBoxTrue(cb1,cb2,cb3)
        {
          
            var check = document.getElementById(cb1)

            if (check.checked)
            {
                check.checked = true
            }
            else
            {
                check.checked = false
            }

            document.getElementById(cb2).checked = false
            document.getElementById(cb3).checked = false

            
            return false;
        }
    </script>

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