时间:2021-07-01 10:21:17 帮助过:10人阅读
DOM:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-"> <title>DOM选项移动操作</title> <style> select { width: px; height: px; } div { display: inline-block; width: px } </style> </head> <body> <select id="unsel" size="" multiple><option>Argentina</option><option>Brazil</option><option>Canada</option><option>Chile</option><option>China</option><option>Cuba</option><option>Denmark</option><option>Egypt</option><option>France</option><option>Greece</option><option>Spain</option></select> <div> <button onclick="move(this.innerHTML)">>></button> <button onclick="move(this.innerHTML)">></button> <button onclick="move(this.innerHTML)"><</button> <button onclick="move(this.innerHTML)"><<</button> </div> <select id="sel" size="" multiple> </select> <script> function $(id){ return document.getElementById(id); } var unsel=null;//保存所有备选国家列表 var sel=[];//保存已选中的国家列表 window.onload=function(){ unsel=$("unsel").innerHTML .replace(/<\/?option>/g," ") .match(/\b[a-zA-Z]+\b/g); } function move(inner){ switch (inner){ case ">>"://全部右移 sel=sel.concat(unsel); unsel.length=; sel.sort(); break; case "<<"://全部左移 unsel=unsel.concat(sel); sel.length=; unsel.sort(); break; case ">"://选中项右移 var opts=document.querySelectorAll("#unsel option"); //从后向前遍历每个option for(var i=opts.length-;i>=;i--){ if(opts[i].selected){ //删除unsel中i位置的个元素,直接压入sel sel.push(unsel.splice(i,)[]); } } sel.sort(); break; case "<"://选中项左移 var opts=document.querySelectorAll("#sel option"); for(var i=opts.length-;i>=;i--){ if(opts[i].selected){ unsel.push(sel.splice(i,)[]); } } unsel.sort(); break; } show(); } function show(){//将两个数组,更新到select元素中 $("unsel").innerHTML="<option>" +unsel.join("</option><option>") +"</option>"; $("sel").innerHTML="<option>" +sel.join("</option><option>") +"</option>"; } </script> </body> </html>
jquery:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-"> <title>选项移动操作</title> <script src="jquery.min.js"></script> <style> select { width: px; height: px; } div { display: inline-block; width: px } </style> </head> <body> <select id="first" size="" multiple> <option>Argentina</option> <option>Brazil</option> <option>Canada</option> <option>Chile</option> <option>China</option> <option>Cuba</option> <option>Denmark</option> <option>Egypt</option> <option>France</option> <option>Greece</option> <option>Spain</option> </select> <div> <button id="add">></button> <button id="add_all">>></button> <button id="remove"><</button> <button id="remove_all"><<</button> </div> <select id="second" size="" multiple> </select> <script> $("#add").click(function(){ // 将左边被选中的选项,移到右边去 $("#first>option:selected").appendTo($("#second")); }); $("#add_all").click(function(){ $("#first>option").appendTo($("#second")); }); $("#remove").click(function(){ $("#second>option:selected").appendTo($("#first")); }); $("#remove_all").click(function(){ $("#second>option").appendTo($("#first")); }); // 双击事件 $("#first").dblclick(function(){ $("#first>option:selected").appendTo($("#second")); }); $("#second").dblclick(function(){ $("#second>option:selected").appendTo($("#first")); }); </script> </body> </html>
以上所述是小编给大家介绍的DOM操作和jQuery实现选项移动操作代码分享的全部内容,希望对大家有所帮助!