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php - 根据动态下拉框填充文本框

转载 作者:搜寻专家 更新时间:2023-10-31 21:28:56 27 4
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我正在尝试根据从数据库中填充的动态保管箱来填充文本框。

我的代码如下:

index.php

<?php
include "../conn.php";
?>
<html>
<head>
<title>Changing textbox value based on dropdown list using Ajax and PHP</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script>
function getXMLHTTP() {
var xmlhttp=false;
try{
xmlhttp=new XMLHttpRequest();
}
catch(e) {
try{
xmlhttp= new ActiveXObject("Microsoft.XMLHTTP");
}
catch(e){
try{
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
}
catch(e1){
xmlhttp=false;
}
}
}

return xmlhttp;
}



function getCurrencyCode(strURL){
var req = getXMLHTTP();
if (req){
//function to be called when state is changed
req.onreadystatechange = function(){
//when state is completed i.e 4
if (req.readyState == 4) {
// only if http status is "OK"
if (req.status == 200){
document.getElementById('cur_code').value=req.responseText;
} else {
alert("There was a problem while using XMLHTTP:\n" + req.statusText);
}
}
}
req.open("GET", strURL, true);
req.send(null);
}
}
</script>
</head>

<body style="font: 12px Verdana, Arial, Helvetica, sans-serif;">

<form style="text-align:center" method="post" action="" name="form1">
<p style="color:#000099 ">When you change the dropdown list, the respective currency code of the country will be displayed in the textbox which is fetched from PHP using Ajax. </p>
<p>Department : <?PHP
echo "<select name= 'Department' class='form-control selectpicker' onChange='getCurrencyCode('find_ccode.php?country='+this.value)' Required>";
echo '<option value="">'.'--Please Select Department--'.'</option>';
$sql = "SELECT ID,Name FROM Departments";
$query = sqlsrv_query($conn,$sql);
$query_display = sqlsrv_query($conn,$sql);
while($row=sqlsrv_fetch_array($query_display,SQLSRV_FETCH_ASSOC)){
echo "<option value='". $row['Name']."'>".$row['Name']. '</option>';
}
echo "</select>";
?>
ID : <input type="text" name="cur_code" id="cur_code" ></p>
</form>
</body>
</html>

find_ccode.php

        <?php 

$country=$_REQUEST['country'];
include '../conn.php';

$sql = "SELECT ID,Name FROM Departments Name='$country'";
$fetched=sqlsrv_query($conn,$sql) ;
if( $fetched === false ) { die( print_r( sqlsrv_errors(), true ));}
while($sno=sqlsrv_fetch_array($fetched,SQLSRV_FETCH_ASSOC))
{
echo $formno=$sno['ID'];
}
}

?>

我有什么

enter image description here

我想要什么:

在下拉列表中选择的特定部门的 ID 号应显示在文本框中。我还附上了我正在尝试做的事情的摘录

enter image description here

但是好像不行。你认为我哪里做错了?感谢任何帮助:)

最佳答案

FIDDLE

$('#sel').change(function() {
$('#qwe1').val($('#sel option:selected').val());

})

动态值

FIDDLE

使用.change选择并获取其值,然后将其放入输入框。

更新

FIDDLE

var data = var data = [{
"id": "342-432-423-000","name": "name1"
}, {
"id": "342-432-423-001","name": "name2"
}, {
"id": "342-432-423-002","name": "name3"
}, {
"id": "342-432-423-003","name": "name4"
}, {
"id": "342-432-423-004","name": "name5"
}, {
"id": "342-432-423-005","name": "name6"
}, {
"id": "342-432-423-006","name": "name7"
}, {
"id": "342-432-423-007","name": "name8"
}]


for (var i = 0; i < data.length; i++) {
$('#sel').append('<option id=' + data[i].id + ' data-id="' + data[i].id + '">' + data[i].name + '</option>');
}

$('#sel').change(function () {
$('#qwe1').val($('#sel option:selected').data('id'));

})

假设我有来自 php 的数据,我将 department name 设置为 option name 并将 department id 设置为 data -id。然后从选择更改事件中我将获得 data-id 的值并将其设置为输入值。

关于php - 根据动态下拉框填充文本框,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32410810/

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