jquery中添加属性和删除属性:
$("#2args").attr("disabled",‘disabled‘); $("#2args").removeAttr("disabled");
问题背景:
选择“选项1”是,“两个参数”这个单选按钮有效。
选择“选项2”时,让“两个参数”的这个单选按钮无效。
代码:
<!DOCTYPE> <html > <head> <meta charset="utf-8" /> <title>demo</title> <style type="text/css"> .control-group{ margin-bottom: 20px; } .controls{ display: inline-block; vertical-align: top; } form{ border:1px dotted #666; padding: 30px; display: inline-block; } input[disabled], select[disabled], textarea[disabled], input[readonly], select[readonly], textarea[readonly] { cursor: not-allowed; } </style> <body> <form method="post" action="" onsubmit="return false;"> <div class="control-group"> <label for="project_name">名称:</label> <input name="project_name" maxlength="20" id="project_name" placeholder="项目名称"></div> <div class="control-group"> <label>类型:</label> <select id="project_type" onchange="typeChange()"> <option value="" disabled="disabled"></option> <option value="" disabled="disabled">------ [ 类型一 ] ------</option> <option value="1">选项1</option> <option value="2">选项2</option> <option value="3">选项3</option> <option value="" disabled="disabled"></option> <option value="" disabled="disabled">------ [ 类型二 ] ------</option> <option value="4">选项4</option> <option value="5">选项5</option> <option value="6">选项6</option> </select> </div> <div class="control-group"> <label>参数:</label> <div class="controls"> <br/> <label class="radio" for="1arg"> <input type="radio" name="nodes" id="1arg" value="1" checked="checked" /> 单个参数 </label> <br/> <label class="radio" for="2args"> <input type="radio" name="nodes" id="2args" value="2" /> 两个参数 </label> <br/> <label class="radio" for="3args" > <input type="radio" name="nodes" id="3args" value="3" disabled="disabled" /> 三个参数 </label> </div> </div> <div class="control-group"> <button id="create_project" type="submit" onclick="beforecreate()">新建</button> <button >取消</button> </div> </form> <script type="text/javascript" src="js/jquery-2.1.4.min.js"></script> <script type="text/javascript"> function typeChange(){ var typeLists=[‘1‘,‘2‘,‘3‘,‘4‘,‘5‘,‘6‘]; var pj_type=$("#project_type option:selected").val(); if(pj_type==2){ $("#2args").attr("disabled",‘disabled‘); }else if(pj_type==1){ $("#2args").removeAttr("disabled"); }else if($.inArray(pj_type, app_type_list)>=0){ //后期扩展功能 } } </script> </body> </html>
时间: 2024-12-29 07:23:47