Question

我正在尝试根据选择下拉框中的用户输入显示/隐藏各种div。实际上，首先，我试图直接实现jQuery dropdown hide show div based on value中显示的代码，但是我遗漏了一些简单的东西，阻止它在http://www.intertwineimages.com/form2.html工作这里是我的完整代码，任何人都可以指出我在正确的方向？

<html>

<script type="text/javascript">
hideAllDivs = function () {
    $("#hourly").hide();
    $("#per_diem").hide();
    $("#fixed").hide();
};

handleNewSelection = function () {

    hideAllDivs();

    switch ($(this).val()) {
        case '1':
            $("#hourly").show();
        break;
        case '2':
            $("#per_diem").show();
        break;
        case '3':
            $("#fixed").show();
        break;
    }
};

$(document).ready(function() {

    $("#project_billing_code_id").change(handleNewSelection);

    // Run the event handler once now to ensure everything is as it should be
    handleNewSelection.apply($("#project_billing_code_id"));

});
</script>
<select id="project_billing_code_id">
    <option value="">Pick one</option>
    <option value="1">1-Hourly</option>
    <option value="2">2-Per Diem</option>
    <option value="3">3-Fixed</option>
</select>

<div id="hourly">Hourly</div>
<div id="per_diem">Per Diem</div>
<div id="fixed">Fixed</div>

</html>

编辑：更正后的代码

<html>

<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
hideAllDivs = function () {
    $("#hourly").hide();
    $("#per_diem").hide();
    $("#fixed").hide();
};

handleNewSelection = function () {

    hideAllDivs();

    switch ($(this).val()) {
        case '1':
            $("#hourly").show();
        break;
        case '2':
            $("#per_diem").show();
        break;
        case '3':
            $("#fixed").show();
        break;
    }
};

$(document).ready(function() {

    $("#project_billing_code_id").change(handleNewSelection);

    // Run the event handler once now to ensure everything is as it should be
    handleNewSelection.apply($("#project_billing_code_id"));

});
</script>
<select id="project_billing_code_id">
    <option value="">Pick one</option>
    <option value="1">1-Hourly</option>
    <option value="2">2-Per Diem</option>
    <option value="3">3-Fixed</option>
</select>

<div id="hourly">Hourly</div>
<div id="per_diem">Per Diem</div>
<div id="fixed">Fixed</div>

</html>

Answer 1

因为你没有包含http://www.intertwineimages.com/form2.html

的jquery文件

jquery显示/隐藏div基于下拉列表

1 个答案: