Layuilayui 单选框多选框radio 元素判断是必填项 lay-verify=‘required‘

Posted 2023-02-21 厦门德仔

layui 单选框、多选框radio 元素判断是必填项 lay-verify=‘required‘

大家好，又见面了，我是你们的朋友全栈君。

简单验证复选框，单选框必填

例子代码：

 class="layui-input-block">
      <input type="checkbox" name="like" lay-skin="primary" lay-verify="otherReq" title="写作">
      <input type="checkbox" name="like" lay-skin="primary" lay-verify="otherReq" title="阅读">
      <input type="checkbox" name="like"  lay-verify="otherReq" title="游戏">
    </div>
  </div>
  <div class="layui-form-item">
    <label class="layui-form-label">单选框</label>
    <div class="layui-input-block">
      <input type="radio" name="sex" value="男" lay-verify="otherReq" title="男" >
      <input type="radio" name="sex" value="女" lay-verify="otherReq" title="女">
    </div>
  </div>
  
  <div class="layui-form-item">
    <div class="layui-input-block">
      <button class="layui-btn" lay-submit="" lay-filter="demo1">立即提交</button>
    </div>
  </div>
</form>

<script src="//res.layui.com/layui/dist/layui.js" charset="utf-8"></script>
<!-- 注意：如果你直接复制所有代码到本地，上述js路径需要改成你本地的 -->
<script>
layui.use(['form', 'layedit', 'laydate'], function()
  var form = layui.form
  ,layer = layui.layer
  ,layedit = layui.layedit
  ,laydate = layui.laydate;
  

  //自定义验证规则
  form.verify(
    otherReq: function(value,item)
      var $ = layui.$;
      var verifyName=$(item).attr('name')
      , verifyType=$(item).attr('type')
      ,formElem=$(item).parents('.layui-form')//获取当前所在的form元素，如果存在的话
//,verifyElem=formElem.find('input[name='+verifyName+']')//获取需要校验的元素
,verifyElem=formElem.find("input[name='"+verifyName+"']")//获取需要校验的元素
,isTrue= verifyElem.is(':checked')//是否命中校验
,focusElem = verifyElem.next().find('i.layui-icon');//焦点元素
if(!isTrue || !value)
        //定位焦点
        focusElem.css(verifyType=='radio'?"color":"#FF5722":"border-color":"#FF5722");
        //对非输入框设置焦点
        focusElem.first().attr("tabIndex","1").css("outline","0").blur(function() 
            focusElem.css(verifyType=='radio'?"color":"":"border-color":"");
         ).focus();
        return '必填项不能为空';

    
  );
 
  //监听提交
  form.on('submit(demo1)', function(data)
    layer.alert(JSON.stringify(data.field), 
      title: '最终的提交信息'
    )
    return false;
  );
 
);
</script>

</body>
</html>