我有下面的代碼,當點擊箭頭圖像時展開和摺疊子類別。JQuery - 組複選框
<html>
<head>
<script src="http://www.google.com/jsapi"></script>
<script>
google.load("jquery", "1.3.2");
google.load("jqueryui", "1.7.2");
</script>
<script language="JavaScript">
function toggleTableRows()
{
$(document).ready(function() {
$('img.parent')
.css("cursor","pointer")
.toggle(
function() {
$(this).attr("title","Click to Collapse")
$(this).attr("src","arrow_expanded.gif");
$('tr').siblings('#child-'+this.id).toggle();
},
function() {
$(this).attr("title","Click to Expand");
$(this).attr("src","arrow_collapsed.gif");
$('tr').siblings('#child-'+this.id).toggle();
}
);
initCheckBoxes();
});
}
function toggleCheckboxes(current, form, field) {
$("#"+ form +" :checkbox[name='"+ field +"[]']").attr("checked", current.checked);
}
function toggleParentCheckboxes(current, form) {
var checked = ($("#"+ form +" :checkbox[name='"+ current.name +"']").length == $("#"+ form +" :checkbox[name='"+ current.name +"']:checked").length);
$("#"+ form +" :checkbox[name='"+ current.name.replace("[]", "") +"']").attr("checked", checked);
}
function initCheckBoxes() {
$("#frmDinnerMenu :checkbox:checked").each(function() {
if (this.name.replace(/[0-9]/g, "") == "chk[]") {
toggleParentCheckboxes(this, "frmDinnerMenu");
}
});
}
</script>
<script language="JavaScript">toggleTableRows();</script>
</head>
<body>
<form name="frmDinnerMenu" id="frmDinnerMenu" method="POST" action="">
<table border=1>
<tr>
<td><img class="parent" id="0" src="arrow_collapsed.gif" title="Click to Expand">Category - Fruits</td>
<td><input type="checkbox" name="chk0" onclick="toggleCheckboxes(this, 'frmDinnerMenu', 'chk0');"/></td>
</tr>
<tr style="display: none;" id="child-0">
<td> Apple</td>
<td><input type="checkbox" value="true" name="chk0[]" onclick="toggleParentCheckboxes(this, 'frmDinnerMenu');"/></td>
</tr>
<tr style="display: none;" id="child-0">
<td> Banana</td>
<td><input type="checkbox" value="false" name="chk0[]" onclick="toggleParentCheckboxes(this, 'frmDinnerMenu');"/></td>
</tr>
<tr style="display: none;" id="child-0">
<td> Orange</td>
<td><input type="checkbox" checked value="true" name="chk0[]" onclick="toggleParentCheckboxes(this, 'frmDinnerMenu');"/></td>
</tr>
<tr><td><img class="parent" id="1" src="arrow_collapsed.gif" title="Click to Expand">Category - Vegetables</td><td><input type="checkbox" name="chk1" onclick="toggleCheckboxes(this, 'frmDinnerMenu', 'chk1');"/></td></tr>
<tr style="display: none;" id=child-1><td> Cabbage</td><td><input type="checkbox" checked value="0" name="chk1[]" onclick="toggleParentCheckboxes(this, 'frmDinnerMenu');"/></td></tr>
<tr style="display: none;" id=child-1><td> Tomatoes</td><td><input type="checkbox" checked value="0" name="chk1[]" onclick="toggleParentCheckboxes(this, 'frmDinnerMenu');"/></td></tr>
<tr style="display: none;" id=child-1><td> Green Peppers</td><td><input type="checkbox" checked value="0" name="chk1[]" onclick="toggleParentCheckboxes(this, 'frmDinnerMenu');"/></td></tr>
<tr><td><img class="parent" id="2" src="arrow_collapsed.gif" title="Click to Expand">Category - Dessert</td><td><input type="checkbox" name="chk2" onclick="toggleCheckboxes(this, 'frmDinnerMenu', 'chk2');"/></td></tr>
<tr style="display: none;" id=child-2><td> Ice Cream</td><td><input type="checkbox" checked value="0" name="chk2[]" onclick="toggleParentCheckboxes(this, 'frmDinnerMenu');"/></td></tr>
<tr style="display: none;" id=child-2><td> Custard</td><td><input type="checkbox" checked value="0" name="chk2[]" onclick="toggleParentCheckboxes(this, 'frmDinnerMenu');"/></td></tr>
<tr style="display: none;" id=child-2><td> Chocolate Cake</td><td><input type="checkbox" checked value="0" name="chk2[]" onclick="toggleParentCheckboxes(this, 'frmDinnerMenu');"/></td></tr>
</table>
</form>
</body>
</html>
注意,當表單被提交,我得到下面的輸出
[chk0] => Array (
[0] => true
[1] => true
)
.....
.......
我怎樣才能確保我得到的貼值是這樣的:
[chk0] => Array (
[0] => true
[2] => true
)
的想法是修改JavaScript函數和HTML代碼,使複選框切換工作,並且POSTED值包含選中複選框的鍵而不是順序值。
我該怎麼做?
我試着改變checbox的名稱,使用chk0 [0],chk0 [1],chk0 [2]等索引。可能這是我想要的,但是複選框的切換失敗。試試上面的代碼,並檢查我的意思..謝謝 - 文森特 – Jake 2009-12-11 19:31:41
@Vincent - 你的javascript是專門尋找chk0 []作爲一個名字,你可以改變它來尋找名字'chk0''' - 加上有還有其他一些要改變的地方...看看我在javascript部分的評論 – gnarf 2009-12-11 19:36:26
這似乎是正確的,除了只有在檢查所有子類別時才應檢查父複選框。 – Jake 2009-12-11 19:52:18