javascript - 进度条行为取决于复选框 bootstrap + jquery-6ren

javascript - 进度条行为取决于复选框 bootstrap + jquery

转载作者：行者123 更新时间：2023-11-28 18:19:17

我有一系列问题，每个问题都与一个复选框相关联，学生可以检查他/她的进度。

期望的行为
- 如果用户检查问题(已完成)，进度条指示器会增加一定的值，
- 但如果未选中，进度条指示器应以相同的值减少

当前行为
每次我单击复选框(选中或未选中)时，进度条都会增加。
并且只有当 false 和 true 颠倒时才有效，否则什么也不会发生

按照代码，我做错了。

<!DOCTYPE html>
<html>
<head>
 <head>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script>
$(document).ready(function(){
    var progress = 0;

    $("#section1id").click(function(){
        $("#section1").toggle();
    });
    $("#section2id").click(function(){
        $("#section2").toggle();
    });

    $("#s11id").click(function(){
        if ($("#s11id").is(":checked") == false) {
        progress = progress+5;
        $('#blips > .progress-bar').attr("style","width:" + progress + "%");
        }
        else if ($("#s11id").is(":checked") == true) {
        progress = progress-5;
        $('#blips > .progress-bar').attr("style","width:" + progress + "%");
        }
    });
    $("#s21id").click(function(){
        if ($("#s12id").is(":checked") == false) {
        progress = progress+5;
        $('#blips > .progress-bar').attr("style","width:" + progress + "%");
        }
        else if ($("#s12id").is(":checked") == true) {
        progress = progress-5;
        $('#blips > .progress-bar').attr("style","width:" + progress + "%");
        }
});


});
</script>
  </head>


<body>

              <div class="checkbox">
                <label>
                  <input type="checkbox" class="section1-checkbox" id="section1id">Section1</label>
              </div>
              <div class="checkbox">
                <label>
                  <input type="checkbox" class="section2-checkbox" id="section2id">Section2</label>
              </div>


<div class="container">
  <hr>
  <div class="progress" id="blips">
    <div class="progress-bar" role="progressbar">
      <span class="sr-only"></span>
    </div>
  </div>
  
  <button class="btn btn-default">Stop</button>
</div>

<div class="panel panel-primary" id="section1">
              <div class="panel-heading">
                <h3 class="panel-title">Section1</h3>
              </div>
                <div class="panel panel-default">
                  <div class="panel-heading">
                    <class="checkbox" id="s11id">
                      <label>1.
                        <input type="checkbox" value="">
                      </label>
                    </class="checkbox">
                    <h4 class="panel-title">
                      <a data-toggle="collapse" data-parent="#accordion" href="#section11">

Question1-s1

              </a>
                    </h4>
                  </div>
                  <div id="section11" class="panel-collapse collapse">
                    <div class="panel-body">Answer-s1</div>
                  </div>
                </div>
              </div>
            </div>


<div class="panel panel-primary" id="section2">
              <div class="panel-heading">
                <h3 class="panel-title">Section2</h3>
              </div>
                <div class="panel panel-default">
                  <div class="panel-heading">
                    <class="checkbox" id="s21id">
                      <label>1.
                        <input type="checkbox" value="">
                      </label>
                    </class="checkbox">
                    <h4 class="panel-title">
                      <a data-toggle="collapse" data-parent="#accordion" href="#section21">

Question1-s2

              </a>
                    </h4>
                  </div>
                  <div id="section21" class="panel-collapse collapse">
                    <div class="panel-body">Answer-s2</div>
                  </div>
                </div>
              </div>
            </div>





</body>
</html>

最佳答案

PLNKR 演示

http://plnkr.co/edit/7F3rdRwAAncyqXNeUfCV?p=preview

堆栈片段

<!DOCTYPE html>
<html>
<head>
 <head>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script>
jQuery(document).ready(function($){
    var progress = 0;

    $("#section1id").click(function(){
        $("#section1").toggle();
    });
    $("#section2id").click(function(){
        $("#section2").toggle();
    });

    $("#s11id input").on('change', function(){
        if ($("#s11id input").is(":checked") == true) {
        progress = progress+5;
        $('#blips > .progress-bar').attr("style","width:" + progress + "%");
        }
        else if ($("#s11id input").is(":checked") == false) {
        progress = progress-5;
        $('#blips > .progress-bar').attr("style","width:" + progress + "%");
        }
    });
    $("#s21id input").on('change', function(){
        if ($("#s21id input").is(":checked") == true) {
        progress = progress+5;
        $('#blips > .progress-bar').attr("style","width:" + progress + "%");
        }
        else if ($("#s21id input").is(":checked") == false) {
        progress = progress-5;
        $('#blips > .progress-bar').attr("style","width:" + progress + "%");
        }
    });


});
</script>
  </head>


<body>

              <div class="checkbox">
                <label>
                  <input type="checkbox" class="section1-checkbox" id="section1id">Section1</label>
              </div>
              <div class="checkbox">
                <label>
                  <input type="checkbox" class="section2-checkbox" id="section2id">Section2</label>
              </div>


<div class="container">
  <hr>
  <div class="progress" id="blips">
    <div class="progress-bar" role="progressbar">
      <span class="sr-only"></span>
    </div>
  </div>
  
  <button class="btn btn-default">Stop</button>
</div>

<div class="panel panel-primary" id="section1">
              <div class="panel-heading">
                <h3 class="panel-title">Section1</h3>
              </div>
                <div class="panel panel-default">
                  <div class="panel-heading">
                    <div class="checkbox" id="s11id">
                      <label>1.
                        <input type="checkbox" value="">
                      </label>
                    </div>
                    <h4 class="panel-title">
                      <a data-toggle="collapse" data-parent="#accordion" href="#section11">

Question1-s1

              </a>
                    </h4>
                  </div>
                  <div id="section11" class="panel-collapse collapse">
                    <div class="panel-body">Answer-s1</div>
                  </div>
                </div>
              </div>
            </div>


<div class="panel panel-primary" id="section2">
              <div class="panel-heading">
                <h3 class="panel-title">Section2</h3>
              </div>
                <div class="panel panel-default">
                  <div class="panel-heading">
                    <div class="checkbox" id="s21id">
                      <label>1.
                        <input type="checkbox" value="">
                      </label>
                    </div>
                    <h4 class="panel-title">
                      <a data-toggle="collapse" data-parent="#accordion" href="#section21">

Question1-s2

              </a>
                    </h4>
                  </div>
                  <div id="section21" class="panel-collapse collapse">
                    <div class="panel-body">Answer-s2</div>
                  </div>
                </div>
              </div>
            </div>
</body>
</html>

对代码所做的更改:

使用.is(":checked")作为输入。您正在检查它的包装类。还将点击事件更改为输入的更改事件。

已更改

$("#s11id").click(function(){
        if ($("#s11id").is(":checked") == true) {

至

$("#s11id input").on('change', function(){
        if ($("#s11id input").is(":checked") == true) {

用正确的 html 替换了无效的 html

已更改

<class="checkbox" id="s11id">
  <label>1.
    <input type="checkbox" value="">
  </label>
</class="checkbox">

至

<div class="checkbox" id="s11id">
  <label>1.
    <input type="checkbox" value="">
  </label>
</div>

关于javascript - 进度条行为取决于复选框 bootstrap + jquery，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40210465/

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javascript - 进度条行为取决于复选框 bootstrap + jquery