Javascript-基于下拉列表启用/禁用元素和文本框不工作
这是从一本书中摘取的。但是我想在从下拉列表中选择值“Others”时启用文本框 这是我从JSFIDLE编辑的代码Javascript-基于下拉列表启用/禁用元素和文本框不工作,javascript,html,Javascript,Html,这是从一本书中摘取的。但是我想在从下拉列表中选择值“Others”时启用文本框 这是我从JSFIDLE编辑的代码 <html> <head> <title> Submit a Contract </title> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <script typ
<html>
<head>
<title> Submit a Contract </title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script type="text/javascript">
function toggleExternal() {
document.getElementById("extText").disabled = false;
var divis_el = document.getElementById("division");
for (var i = 0; i < divis_el.children.length; i++) {
divis_el.children[i].disabled = true;
}
}
function toggleDivision() {
document.getElementById("extText").disabled = true;z
var divis_el = document.getElementById("division");
for (var i = 0; i < divis_el.children.length; i++) {
divis_el.children[i].disabled = false;
}
}
function enableTextbox() {
var val = document.getElementById("mySelect").selectedIndex;
if (val == 0 || val == 1 ||val == 2 ||val == 3 ||val == 4 ||) { document.getElementById("otherTxt").disabled = true}
if (val == 5) { document.getElementById("otherTxt").disabled = true; }
}
</script>
</head>
<body>
<form method="post" action="" enctype="multipart/form-data">
ID:<br>
<input type="hidden" name="id" value="50" />
<label for = "client1">
<input type="radio" name="client_type" id = "client1" value="Division" checked onclick="toggleDivision()"/> Division
</label>
                                     
<label for ="client2">
<input type="radio" name="client_type" id = "client2" value="External" onclick="toggleExternal()"/> External
</label>
 
<input disabled type="text" id="extText" name="client_details2" value=""/>
<br><br>
<div id="division">
Division:
<select id="mySelect" name="client_details" onchange="enableTextbox()">
<option value="Choose">Choose Division...</option>
<option value="Distribution">Distribution</option>
<option value="Transmission">Transmission</option>
<option value="Generation">Generation</option>
<option value="Procument">Procument</option>
<option value="Other">Others</option>
</select>
<br><br>
Others:<input type="text" id="otherTxt" name="client_details1" value="" disabled/>
<br>
</div>
<br>
<input type="submit" name="submit" value="Submit"/>
</form>
</body>
提交合同
函数toggleExternal(){
document.getElementById(“extText”).disabled=false;
var divis_el=document.getElementById(“division”);
for(var i=0;i
分部
        
外部的
 
分部:
选择部门。。。
分布
传输
一代
采购
其他
其他:
我添加了函数enableTextBox,然后禁用/启用的元素突然不起作用。为什么呢 下面是工作代码
<html>
<head>
<title> Submit a Contract </title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<form method="post" action="" enctype="multipart/form-data">
ID:<br>
<input type="hidden" name="id" value="50" />
<label for = "client1">
<input type="radio" name="client_type" id = "client1" value="Division" checked onclick="toggleDivision()"/> Division
</label>
                                     
<label for ="client2">
<input type="radio" name="client_type" id = "client2" value="External" onclick="toggleExternal()"/> External
</label>
 
<input disabled type="text" id="extText" name="client_details2" value=""/>
<br><br>
<div id="division">
Division:
<select id="mySelect" name="client_details" onchange="enableTextbox()">
<option value="Choose">Choose Division...</option>
<option value="Distribution">Distribution</option>
<option value="Transmission">Transmission</option>
<option value="Generation">Generation</option>
<option value="Procument">Procument</option>
<option value="Other">Others</option>
</select>
<br><br>
Others:<input type="text" id="otherTxt" name="client_details1" value="" disabled/>
<br>
</div>
<br>
<input type="submit" name="submit" value="Submit"/>
</form>
<script>
function toggleExternal() {
document.getElementById("extText").disabled = false;
var divis_el = document.getElementById("division");
for (var i = 0; i < divis_el.children.length; i++) {
divis_el.children[i].disabled = true;
}
}
function toggleDivision() {
alert('a')
document.getElementById("extText").disabled = true;
var divis_el = document.getElementById("division");
for (var i = 0; i < divis_el.children.length; i++) {
divis_el.children[i].disabled = false;
}
}
function enableTextbox() {
var val = document.getElementById("mySelect").selectedIndex;
if (val == 0 || val == 1 ||val == 2 ||val == 3 ||val == 4) { document.getElementById("otherTxt").disabled = true}
if (val == 5) { document.getElementById("otherTxt").disabled = false; }
}
</script>
</body>
提交合同
ID:
分部
        
外部的
 
分部:
选择部门。。。
分布
传输
一代
采购
其他
其他:
函数toggleExternal(){
document.getElementById(“extText”).disabled=false;
var divis_el=document.getElementById(“division”);
for(var i=0;i
这是工作代码
<html>
<head>
<title> Submit a Contract </title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<form method="post" action="" enctype="multipart/form-data">
ID:<br>
<input type="hidden" name="id" value="50" />
<label for = "client1">
<input type="radio" name="client_type" id = "client1" value="Division" checked onclick="toggleDivision()"/> Division
</label>
                                     
<label for ="client2">
<input type="radio" name="client_type" id = "client2" value="External" onclick="toggleExternal()"/> External
</label>
 
<input disabled type="text" id="extText" name="client_details2" value=""/>
<br><br>
<div id="division">
Division:
<select id="mySelect" name="client_details" onchange="enableTextbox()">
<option value="Choose">Choose Division...</option>
<option value="Distribution">Distribution</option>
<option value="Transmission">Transmission</option>
<option value="Generation">Generation</option>
<option value="Procument">Procument</option>
<option value="Other">Others</option>
</select>
<br><br>
Others:<input type="text" id="otherTxt" name="client_details1" value="" disabled/>
<br>
</div>
<br>
<input type="submit" name="submit" value="Submit"/>
</form>
<script>
function toggleExternal() {
document.getElementById("extText").disabled = false;
var divis_el = document.getElementById("division");
for (var i = 0; i < divis_el.children.length; i++) {
divis_el.children[i].disabled = true;
}
}
function toggleDivision() {
alert('a')
document.getElementById("extText").disabled = true;
var divis_el = document.getElementById("division");
for (var i = 0; i < divis_el.children.length; i++) {
divis_el.children[i].disabled = false;
}
}
function enableTextbox() {
var val = document.getElementById("mySelect").selectedIndex;
if (val == 0 || val == 1 ||val == 2 ||val == 3 ||val == 4) { document.getElementById("otherTxt").disabled = true}
if (val == 5) { document.getElementById("otherTxt").disabled = false; }
}
</script>
</body>
提交合同
ID:
分部
        
外部的
 
分部:
选择部门。。。
分布
传输
一代
采购
其他
其他:
函数toggleExternal(){
document.getElementById(“extText”).disabled=false;
var divis_el=document.getElementById(“division”);
for(var i=0;i
您在这一行中犯了1个错误。
在val==4
之后,您输入了“或”符号“|”,这在JS中是不允许的
第二个错误是“otherTxt”字段已禁用,您正在尝试禁用它。因此,请更改值“disable=false”
这一行你犯了一个错误。 在
val==4
之后,您输入了“或”符号“|”,这在JS中是不允许的
第二个错误是“otherTxt”字段已禁用,您正在尝试禁用它。因此,请更改值“disable=false”
如果您可以在单击“外部”时选择“其他”菜单,然后再次单击“分区”字段,您将在此处启用“其他”文本框。所以这个问题也固定在这里。像这样更改if条件。检查问题并解决它。这将帮助您更好地为您服务,而不会出现问题
<html>
<head>
<title> Submit a Contract </title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script type="text/javascript">
function toggleExternal() {
document.getElementById("extText").disabled = false;
var divis_el = document.getElementById("division");
for (var i = 0; i < divis_el.children.length; i++) {
divis_el.children[i].disabled = true;
}
}
function toggleDivision() {
document.getElementById("extText").disabled = true;
var divis_el = document.getElementById("division");
for (var i = 0; i < divis_el.children.length; i++) {
divis_el.children[i].disabled = false;
}
var val = document.getElementById("mySelect").selectedIndex;
if (val != 5 ) { document.getElementById("otherTxt").disabled = false}else{document.getElementById("otherTxt").disabled = true; }
}
function enableTextbox() {
var val = document.getElementById("mySelect").selectedIndex;
if (val == 0 || val == 1 ||val == 2 ||val == 3 ||val == 4 && val != 5 ) { document.getElementById("otherTxt").disabled = false}else{document.getElementById("otherTxt").disabled = true; }
}
</script>
</head>
<body>
<form method="post" action="" enctype="multipart/form-data">
ID:<br>
<input type="hidden" name="id" value="50" />
<label for = "client1">
<input type="radio" name="client_type" id = "client1" value="Division" checked onclick="toggleDivision()"/> Division
</label>
                                     
<label for ="client2">
<input type="radio" name="client_type" id = "client2" value="External" onclick="toggleExternal()"/> External
</label>
 
<input disabled type="text" id="extText" name="client_details2" value=""/>
<br><br>
<div id="division">
Division:
<select id="mySelect" name="client_details" onchange="enableTextbox()">
<option value="Choose">Choose Division...</option>
<option value="Distribution">Distribution</option>
<option value="Transmission">Transmission</option>
<option value="Generation">Generation</option>
<option value="Procument">Procument</option>
<option value="Other">Others</option>
</select>
<br><br>
Others:<input type="text" id="otherTxt" name="client_details1" value="" />
<br>
</div>
<br>
<input type="submit" name="submit" value="Submit"/>
</form>
</body>
提交合同
函数toggleExternal(){
document.getElementById(“extText”).disabled=false;
var divis_el=document.getElementById(“division”);
for(var i=0;i<html>
<head>
<title> Submit a Contract </title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script type="text/javascript">
function clientDetails(){
console.log(document.getElementById("client_details").value);
if(document.getElementById("client_details").value == "Other"){
document.getElementById("client_details1").disabled = false;
}else{
document.getElementById("client_details1").disabled = true;
}
}
function toggleExternal() {
document.getElementById("extText").disabled = false;
var divis_el = document.getElementById("division");
for (var i = 0; i < divis_el.children.length; i++) {
divis_el.children[i].disabled = true;
}
}
function toggleDivision() {
document.getElementById("extText").disabled = true;
var divis_el = document.getElementById("division");
for (var i = 0; i < divis_el.children.length; i++) {
divis_el.children[i].disabled = false;
}
}
</script>
</head>
<body>
<form method="post" action="" enctype="multipart/form-data">
ID: 50<br>
<input type="hidden" name="id" value="50" />
<label for = "client1">
<input type="radio" name="client_type" id = "client1" value="Division" checked onclick="toggleDivision()"/> Division
</label>
                                     
<label for ="client2">
<input type="radio" name="client_type" id = "client2" value="External" onclick="toggleExternal()"/> External
</label>
 
<input disabled type="text" id="extText" name="client_details2" value="rrrrrr"/>
<br><br>
<div id="division">
Division:
<select name="client_details" id="client_details" onchange="clientDetails()">
<option value="Choose" />Choose Division...</option>
<option value="Distribution" />Distribution</option>
<option value="Transmission" />Transmission</option>
<option value="Generation" />Generation</option>
<option value="Procument" />Procument</option>
<option value="Other" />Others</option>
</select>
<br><br>
Others:<input type="text" name="client_details1" value="rrrrrr" id="client_details1" disabled/>
<br>
</div>
<br>
<input type="submit" name="submit" value="Submit"/>
</form>
</body>