在6种情况下,我想要执行6个复选框:
<tr style="height: 21px;">
<td style="width: 25%; height: 21px;">COB</td>
<td style="width: 25%; height: 21px;"><input name="COB" type="checkbox" id="COB" value="1" <?php if($_GET['COB'] == '1'){ echo 'checked="checked"';}?>/> </td>
<td style="width: 25%; height: 21px;">SMT</td>
<td style="width: 25%; height: 21px;"> <input name="SMT" id="SMT" type="checkbox" value="1" <?php if($_GET['SMT'] == '1'){ echo 'checked="checked"';}?>/> </td>
</tr>
<tr style="height: 21px;">
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;">BGA</td>
<td style="width: 25%; height: 21px;"> <input name="BGA" id="BGA" type="checkbox" value="1" <?php if($_GET['BGA'] == '1'){ echo 'checked="checked"';}?>/> </td>
</tr>
<tr style="height: 21px;">
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"> TSOP Typ 1 </td>
<td style="width: 25%; height: 21px;"><input name="TSOP" id="TSOP" type="checkbox" value="1"<?php if($_GET['TSOP'] == '1'){ echo 'checked="checked"';}?> /></td>
</tr>
<tr style="height: 21px;">
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"> TSOP Typ 2</td>
<td style="width: 25%; height: 21px;"><input name="TSOP" id="TSOP" type="checkbox" value="2"<?php if($_GET['TSOP'] == '2'){ echo 'checked="checked"';}?> /> </td>
</tr>
<tr style="height: 21px;">
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"> LGA</td>
<td style="width: 25%; height: 21px;"><input name="LGA" id="LGA" type="checkbox" value="1"<?php if($_GET['LGA'] == '1'){ echo 'checked="checked"';}?> /> </td>
</tr>
这里是PHP部分,我是如何填充下拉列表的。
<td style="width: 14.2857%; height: 21px;"> <select id="FlashID" name="FlashID" onchange="FlashFunction()" size="1" >
<option disabled selected value> </option>;
<?php
foreach($connection->query($flash) as $m)
{
if($m['FlashID'] == $_GET['FlashID']){
$isSelected = 'selected="selected"';
}else{
$isSelected = '';
}
echo "<option data-COB='".$m['COB']."' data-SMT='".$m['SMT']."' data-BGA='".$m['BGA']."' data-TSOP='".$m['TSOP']."' data-LGA='".$m['LGA']."' value='" . $m['FlashID'] . "'".$isSelected." >" .$m['SAP'] ."</option>";
}
?>
</td>
这是填充的下拉列表的SQL表
FlashID SAP COB SMT BGA TSOP LGA
1 102292 0 1 0 2 0
3 102293 0 1 0 2 0
4 102294 0 1 0 2 0
5 102296 0 1 0 0 1
6 102412 0 1 0 1 0
7 102413 0 1 0 1 0
8 102414 0 1 0 1 0
9 102651 0 1 0 2 0
10 102652 0 1 0 2 0
11 102664 0 1 0 2 0
这是我无法使用的Javascript部分:
<script>
function FlashFunction(){
var index = document.getElementById("FlashID").selectedIndex;
var COB = document.getElementById("FlashID").options[index].getAttribute("data-COB");
var SMT = document.getElementById("FlashID").options[index].getAttribute("data-SMT");
var BGA = document.getElementById("FlashID").options[index].getAttribute("data-BGA");
var TSOP = document.getElementById("FlashID").options[index].getAttribute("data-TSOP");
var LGA = document.getElementById("FlashID").options[index].getAttribute("data-LGA");
document.getElementsByName("COB")[0].value = COB;
document.getElementsByName("SMT")[0].value = SMT;
document.getElementsByName("BGA")[0].value = BGA;
document.getElementsByName("TSOP")[0].value = TSOP;
document.getElementsByName("LGA")[0].value = LGA;
}
</script>
请注意,TSOP的值可以为1或2。
例如。您已经看到我是否选择了FlashID6。应该选中TSOP和SMT复选框。
但是atm我不知道,为什么我的Javascript不起作用,我该如何处理呢?有人可以帮忙吗?
答案 0 :(得分:2)
我注意到在最后3个复选框中,值和php代码之间没有空格。
此:
<td style="width: 25%; height: 21px;"><input name="TSOP2" id="TSOP2" type="checkbox" value="2"<?php if($_GET['TSOP'] == '2'){ echo 'checked="checked"';}?> /> </td>
在执行php后可以执行以下操作:
<td style="width: 25%; height: 21px;"><input name="TSOP2" id="TSOP2" type="checkbox" value="2"checked="checked" /> </td>
,应该像这样:
td style="width: 25%; height: 21px;"><input name="TSOP2" id="TSOP2" type="checkbox" value="2" checked="checked" /> </td>
答案 1 :(得分:0)
根据DOM Standard,elemnet ID在整个文档中应该是唯一的。在您的代码中,两个input
具有相同的ID TSOP
。
我已经创建了sample的代码段,以供您证明JAVASCRIPT部分正在工作,您的PHP代码可能存在问题。
function FlashFunction() {
var index = document.getElementById("FlashID").selectedIndex;
var SMT = document
.getElementById("FlashID")
.options[index].getAttribute("data-SMT");
var BGA = document
.getElementById("FlashID")
.options[index].getAttribute("data-BGA");
var TSOP = document
.getElementById("FlashID")
.options[index].getAttribute("data-TSOP");
var LGA = document
.getElementById("FlashID")
.options[index].getAttribute("data-LGA");
document.getElementsByName("COB")[0].value = COB;
document.getElementsByName("SMT")[0].value = SMT;
document.getElementsByName("BGA")[0].value = BGA;
document.getElementsByName("TSOP")[0].value = TSOP;
document.getElementsByName("TSOP2")[0].value = TSOP;
document.getElementsByName("LGA")[0].value = LGA;
if (TSOP == 1) {
document.getElementsByName("TSOP")[0].checked = true;
}
}
<select id="FlashID" name="FlashID" onchange="FlashFunction()">
<option data-SMT="1" value="volvo">102292</option>
<option data-SMT="1" value="saab">102293</option>
<option data-SMT="1" data-TSOP="1" value="mercedes">102412</option>
</select>
<table>
<tr style="height: 21px;">
<td style="width: 25%; height: 21px;">COB</td>
<td style="width: 25%; height: 21px;"><input name="COB" type="checkbox" id="COB" value="1" /> </td>
<td style="width: 25%; height: 21px;">SMT</td>
<td style="width: 25%; height: 21px;"> <input name="SMT" id="SMT" type="checkbox" value="1" </td>
</tr>
<tr style="height: 21px;">
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;">BGA</td>
<td style="width: 25%; height: 21px;"> <input name="BGA" id="BGA" type="checkbox" value="1" </td>
</tr>
<tr style="height: 21px;">
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"> TSOP Typ 1 </td>
<td style="width: 25%; height: 21px;"><input name="TSOP" id="TSOP" type="checkbox" value="1" </td>
</tr>
<tr style="height: 21px;">
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"> TSOP Typ 2</td>
<td style="width: 25%; height: 21px;"><input name="TSOP2" id="TSOP2" type="checkbox" value="2" </td>
</tr>
<tr style="height: 21px;">
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"></td>
<td style="width: 25%; height: 21px;"> LGA</td>
<td style="width: 25%; height: 21px;">
<input name="LGA" id="LGA" type="checkbox" value="1" </td>
</tr>
</table>
答案 2 :(得分:0)
您不会选中这样的复选框
document.getElementsByName("COB")[0].value = COB;
document.getElementsByName("SMT")[0].value = SMT;
document.getElementsByName("BGA")[0].value = BGA;
document.getElementsByName("TSOP")[0].value = TSOP;
document.getElementsByName("TSOP2")[0].value = TSOP;
document.getElementsByName("LGA")[0].value = LGA;
正确的方法是这样的:
document.getElementById("ItemId").checked = true;
// because there is one <input ...> i use getEmelentById instead of getElementsById
在您的程序中,我认为这是您需要使用的正确javascript:
<script>
function FlashFunction(){
var index = document.getElementById("FlashID").selectedIndex;
var COB = document.getElementById("FlashID").options[index].getAttribute("data-COB");
var SMT = document.getElementById("FlashID").options[index].getAttribute("data-SMT");
var BGA = document.getElementById("FlashID").options[index].getAttribute("data-BGA");
var TSOP = document.getElementById("FlashID").options[index].getAttribute("data-TSOP");
var LGA = document.getElementById("FlashID").options[index].getAttribute("data-LGA");
if (COB == 1 ) {
document.getElementById("COB").checked= true;
} else {
document.getElementById("COB").checked= false;
}
if (SMT == 1 ) {
document.getElementById("SMT").checked= true;
} else {
document.getElementById("SMT").checked= false;
}
if (BGA == 1 ) {
document.getElementById("BGA").checked= true;
} else {
document.getElementById("BGA").checked= false;
}
if (TSOP == 1 ) {
document.getElementById("TSOP").checked= true;
} else {
document.getElementById("TSOP").checked= false;
}
if (TSOP == 2 ) {
document.getElementById("TSOP2").checked= true;
} else {
document.getElementById("TSOP2").checked= false;
}
if (LGA == 1 ) {
document.getElementById("LGA").checked= true;
} else {
document.getElementById("LGA").checked= false;
}
}
</script>