有三個選擇框,首先「device_sel」和「prob_sel」被禁用。當我從第一個選擇框中選擇值時,「customer_sel」我使用$ .post來填充device_sel。我的問題是當我在「device_sel」中選擇值,然後「prob_sel」填充時,我該做什麼。我認爲有一些錯誤,當我嘗試填充prob_sel時,我在$ .post過程中看不到。當我在device_sel中更改(或第一次選擇)值時,prob_sel保持開始禁用狀態,並且沒有任何反應。更改第一個框的選定值後填充第二個和第三個選擇框
有人可以發現錯誤或typeo,一直試圖小時來弄清楚,並找不到任何東西。
我的javascript:
<script type="text/javascript">
$(document).ready(function()
{
$('#device_sel').attr('disabled', true);
$('#prob_sel').attr('disabled', true);
$('#customer_sel').change(function()
{
var cid = $('#customer_sel').attr("value");
$.post("get_customers_devices.php", {cid:cid}, function(data)
{
$('#device_sel').attr('disabled', false);
$('#device_sel').html(data);
});
});
$('#device_sel').change(function()
{
var did = $('#device_sel').attr("value");
jQuery.post("get_device_problems.php", {did:did}, function(data)
{
$('#prob_sel').attr('disabled', false);
$('#prob_sel').html(data);
});
});
});
</script>
get_customers_devices.php:
<?php
include "FillSelect.class.php";
echo $fill->FillDeviceSelect($getdata->GetCustomersDevice($_POST['cid']));
?>
get_device_problems.php:
<?php
include "FillSelect.class.php";
echo $fill- >FillProblemSelect($getdata->GetDeviceProblems($_POST['did'])) ;
?>
GetCustomerDevice和GetDeviceProblems:
function GetCustomersDevice($cid)
{
try
{
$db = new PDO('sqlite:base.db') ;
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);
$pquery = $db->prepare("SELECT * FROM Devices WHERE cid=:cid");
$data = array("cid"=>$cid);
$pquery -> execute($data) ;
$rows = $pquery->fetchAll();
return $rows;
}
catch(PDOException $e)
{
echo "Failure: " . $e->getMessage();
}
$db = NULL;
}
function GetDeviceProblems($did)
{
try
{
$db = new PDO('sqlite:base.db') ;
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);
$pquery = $db->prepare("SELECT * FROM Problems p, Devices d WHERE d.did=:did");
$data = array("did"=>$did);
$pquery -> execute($data) ;
$rows = $pquery->fetchAll();
return $rows;
}
catch(PDOException $e)
{
echo "Failure: " . $e->getMessage();
}
$db = NULL;
}
最後FillDeviceSelect和FillProblemSelect:
function FillDeviceSelect($data)
{
$device = '<option value="0">Select option</option>';
foreach($data as $row)
{
$device.= '<option value="'. $row['did'] .'">'. $row['device_name'] .'</option>';
}
return $device;
}
function FillProblemSelect($data)
{
$problem = '<option value="0">Select option</option>';
foreach($data as $row)
{
$problem .= '<option value="' . $row['pid'] .'">' . $row['problem'] .'</option>';
}
return $problem;
}
解決它。非常非常嚴重的錯誤,get_device_problems與我的頁面不在同一個文件夾中,但我確實知道該文件已保存在另一個文件夾中,這就是爲什麼我的郵寄呼叫不起作用...