Question

如果有人能帮我找到解决问题的方法，我会很感激，可能我需要非常简单的事情，但我不知道怎么把它放在一个，所以我需要的 - 包括勾选框的部分，然后按钮提交，但如果你没有勾选复选框并按下按钮出现窗口，上面写着你必须做....，

我已经完成了，但我需要这个

但如果勾选并按下按钮应该会弹出窗口，只显示文本信息！我不知道怎么做到的，这是带复选框和按钮

的那个部分

    <form name="form" method="post" action="#" onSubmit="return checkme();">
    <input type="checkbox" name="agree" value="agree_terms" class="terms">
    &nbsp;I&acute;ve read terms and conditions and I&acute;m ready to shop
    <input type="submit" name="submit" value="" class="submit">
    </form>

这是javascript

    function checkme() {
        missinginfo = "";
        if (!document.form.agree.checked) {
            missinginfo += "You must agree to the Terms and Conditions";
        }
        if (missinginfo != "") {
            missinginfo ="" +
            "\n" +
            missinginfo + "" +
            "\n Please tick the box and try again.";
            alert(missinginfo);
            return false;
        }
        else {
            return true;
        }
    }

我尝试了不同的方式

    <body>
    <title>LIGHTBOX EXAMPLE</title>
    <style>
    .black_overlay{
    display: none;
    position: absolute;
    top: 0%;
    left: 0%;
    width: 100%;
    height: 100%;
    background-color: black;
    z-index:1001;
    -moz-opacity: 0.8;
    opacity:.80;
    filter: alpha(opacity=80);
    }
    .white_content {
    display: none;
    position: absolute;
    top: 25%;
    left: 25%;
    width: 50%;
    height: 50%;
    padding: 16px;
    border: 16px solid orange;
    background-color: white;
    z-index:1002;
    overflow: auto;
    }
    </style>
    </head>
    <body>


    <p>This is the main content. To display a lightbox click <a href = "javascript:void(0)"
    onclick = "document.getElementById('light').style.display='block';        document.getElementById('fade').style.display='block'">here</a></p>

    <div id="light" class="white_content">This is the lightbox content. <a href =                 "javascript:void(0)" onclick = "document.getElementById('light').style.display='none';                document.getElementById('fade').style.display='none'">Close</a></div>
    <div id="fade" class="black_overlay"></div>
    </body>
    </html>

但是当我勾选后面的复选框时会出现含有内容的窗口，但是只有在我勾选方框并按下按钮后才会出现弹出窗口

Answer 1

“如果你勾选并且按钮应该平滑地出现弹出窗口，只有文字信息” - 你几乎已经做到了。只需向第二个分支添加警报即可。试试这段代码：

<!DOCTYPE html>
<html>
  <!-- [[[ head -->

  <head>
    <title>element</title>
<script type="text/javascript">
  function checkme() {
        if (!document.form.agree.checked) {
            missinginfo = "You must agree to the Terms and Conditions\n Please tick the box and try again.";
            alert(missinginfo);
            return false;
        }
        else {
            alert("Text information");
            return true;
        }
    }
</script>
  </head>
  <!-- ]]] -->

  <body>
    <form name="form" method="post" action="#" onSubmit="return checkme();">
      <input type="checkbox" name="agree" id="agree" value="agree_terms" class="terms">
      <label for="agree">&nbsp;I&acute;ve read terms and conditions and I&acute;m ready to shop</label>
      <input type="submit" name="submit" value="Submit" class="submit">
    </form>
  </body>
</html>

勾选复选框然后提交然后弹出窗口

1 个答案: