javascript - 标记复选框后的必填字段-6ren

javascript - 标记复选框后的必填字段

转载作者：行者123 更新时间：2023-11-28 09:15:35

我对 JavScript 非常陌生，我正在尝试创建一个表单，要求在标记复选框后通过切换所需的类将信息输入到字段中。我已经尝试了两天，但如果选中“体育馆”框，则无法将“开始日期”设为必填字段。任何帮助都会很棒。

这是我到目前为止所拥有的:

    <!DOCTYPE html>
    <html>
    <head>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.js"></script>
    <script type="text/javascript">    

    $(document).ready(function(){
        $("#gym").change(function(){              
            $("#togg1").toggle(this.checked);
            $("#startDate").toggleClass("required");
            $("#endDate").toggleClass("required");
            $("#startTime").toggleClass("required");
            $("#endTime").toggleClass("required");

    if(this.checked){
           $("#startDate").attr('required','required');
           $("#endDate").attr('required','required');
           $("#startTime").attr('required','required');
           $("#endTime").attr('required','required');
      }
      else{
           $("#startDate").removeAttr('required')
           $("#endDate").removeAttr('required')
           $("#startTime").removeAttr('required')
           $("#endTime").removeAttr('required')
      }

        });
    });

    </script>


    </head>
    <body>


    <div id="courseForm" style="width: 500px; border: 1px solid #000; padding: 50px 0 50px 50px;margin: 0 auto;">
    <form id="serviceForm" action="#" onSubmit="required(this);" method="POST" enctype="text/plain">
    <input name="orgid" type="hidden" value="000001" />
    <input name="retURL" type="hidden" value="#" />
    <label for="company">* Agency Requesting Facility:</label>
    <br />
    <input id="company" required="required" maxlength="50" name="company" size="50" type="text" />
    <br />
    <br />
    <label for="name">* Agency Contact:</label>
    <br />
    <input id="name" required="required" maxlength="50" name="name" size="50" type="text" />
    <br />
    <br />
    <label for="phone">* Contact Phone Number:</label>
    <br />
    <input id="phone" required="required" maxlength="14" name="phone" size="14" type="text" />
    <br />
    <br />
    <br />Courses offered
    <br />

<input id="gym" name="gym" type="checkbox" value="1" />Gymnasium
    <br />
    <span id="togg1" style="display:none">
            <span id="togg2" style="display:inline">
                <lable for="startDate">* Start Date:</lable>
                    <input id="startDate" maxlength="10" name="startDate" size="10" />
            </span>
            <span id="togg2" style="display:inline">
                <lable for="endDate">* End Date:</lable>
                    <input id="endDate" maxlength="10" name="endDate" size="10" /><br /><br />
            </span>
            <span id="togg2" style="display:inline">
                <lable for="startTime">* Start Time:</lable>
                    <input for="startTime" maxlength="7" name="startTime" size="7" />
            </span>
            <span id="togg2" style="display:inline">
                <lable for="endTime">* End Time:</lable>
                    <input for="endTime" maxlength="7" mane="endTime" size="7" /><br />
            </span>
    </span>

    <br />
    <br />
    <label for="description">Comments:</label>
    <br />
    <textarea name="description" cols="40" rows="5"></textarea>
    <br />
    <br />* denotes required fields
    <br />
    <input type="submit" name="submit" id="submit" value="SUBMIT" />
</form>
</div>
</body>
</html>

最佳答案

您忘记将“必需”属性添加到“开始日期”

$(document).ready(function(){
   $("#gym").change(function(){              
      $("#togg1").toggle(this.checked);
      $("#startDate").toggleClass("required");

      if(this.checked){
           $("#startDate").attr('required','required');
      }else{
           $("#startDate").removeAttr('required')
      }

   });
});

关于javascript - 标记复选框后的必填字段，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/15709921/