我希望从另一个下拉选择中显示和隐藏1或2个下拉菜单

Question

I have code that when a item is selected in a drop down menu another drop down menu appears. 我有代码，当在下拉菜单中选择一个项目时，会出现另一个下拉菜单。 However, individually it works but as soon as it involves 2 menus the code appears to conflict. 但是，它可以单独工作，但是一旦涉及2个菜单，代码就会出现冲突。 This is what I wish to do: When selecting 'Delivery', 'Time' drop down appears. 这就是我想要做的：选择“交付”时，出现“时间”下拉列表。 When selecting 'Collection', 'Number_of_parcels' drop down appears. 选择“集合”时，出现“ Number_of_parcels”下拉列表。 When selecting 'Collection_and_Delivery', both should appear. 选择“收款和付款”时，两者均应出现。

Any help would be appreciated. 任何帮助，将不胜感激。

My code is below: 我的代码如下：

 function show(aval) {
    if (aval == "Collection" || aval == "Collection_and_Delivery") {
    hiddenDiv.style.display='inline-block';
    Form.fileURL.focus();
    } 
    else{
    hiddenDiv.style.display='none';
    }
 }

 function show(aval) {
    if (aval == "Delivery" || aval == "Collection_and_Delivery") {
    hiddenNo.style.display='inline-block';
    Form.fileURL.focus();
    } 
    else{
    hiddenNo.style.display='none';
    }
 }

</script>
</head>

<body>
<form name="form1" id="ff" method="post" action="http://www.xxxxxx.com/cgi-bin/form10.pl" onsubmit="myButton.disabled = true; return true;" target="_blank">
<table>
  <tr>
    <th align="left" colspan="3"> <select name="Collection_Delivery" id="Collection_Delivery" onchange="java_script_:show(this.options[this.selectedIndex].value)">
        <option value="">-</option>
        <option value="Delivery">Delivery</option>
        <option value="Collection">Collection</option>
        <option value="Collection_and_Delivery">Collection &amp Delivery</option>
      </select>
      &nbsp;&nbsp;&nbsp;
      <div id="hiddenDiv" style="display:none">
        <select name="Number_of_parcels" id="Number_of_parcels">
          <option value="z" selected="selected">No. of Parcels</option>
          <option value="1">1</option>
          <option value="2">2</option>
        </select>
      </div>
      &nbsp;&nbsp;&nbsp;
      <div id="hiddenNo" style="display:none">
        <select name="Time" id="Time" onChange="selection()">
          <option value="x" selected="selected">Time</option>
          <option value="24hours">24 Hours</option>
          <option value="Next_day_9am">Next Day 9am</option>
        </select>
      </div>
    </th>
  </tr>
</table>
</body>

Answer 1

You are re-writting the show function declaring other show function. 您正在重新编写show函数，以声明其他show函数。

I fixed the code and I did this: 我修复了代码，然后这样做：

function show(aval) {
  var showCollection = (aval === "Collection"|| aval === "Collection_and_Delivery");
  var showDelivery = (aval === "Delivery"|| aval === "Collection_and_Delivery");

  hiddenDiv.style.display= showCollection ? "inline-block" : "none";
  hiddenNo.style.display= showDelivery ? "inline-block" : "none";

  //Form.fileURL.focus();
}

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我希望从另一个下拉选择中显示和隐藏1或2个下拉菜单

问题描述

1 个解决方案

解决方案1
0 已采纳 2019-01-29 23:16:13

我希望从另一个下拉选择中显示和隐藏1或2个下拉菜单

问题描述

1 个解决方案

解决方案1 0 已采纳 2019-01-29 23:16:13

解决方案1
0 已采纳 2019-01-29 23:16:13