Czesc
Staram sie wyedytowac skrypt na moje potrzeby aby miec dynamiczne select menu tzn po wybraniu pierwszego lista drugiego menu zmienia sie zgodnie z ukladem xml.
Chyba utknalem przy parsowaniu tych danych gdzie sa polskie znaki. W bazie danych uzywam cp1250.
W firefoxie dziala mi wybieranie jesli w selecie nie ma polskiego znaku a w IE dziala jedna z 10 opcji jakie sa i zwraca jakis blad null jest pusty lub nie jest obiektem.
Jak podefiniowac te strony kodowe zeby sie wszystko rozumialo?
Main:
<h2>Ajax Country/Area Drop-down List Example
</h2> Select Country:
<select name="continentList" id="continentList" onChange="return ContinentListOnChange()"> <?php
include 'dbcon.php';
$conn = mysql_pconnect($hostname, $username) or trigger_error(mysql_error(),E_USER_ERROR);
mysql_select_db($database, $conn);
$query = "SELECT distinct TYP_ZGLOSZENIA from coredump1";
$result = mysql_query($query);
while($row = mysql_fetch_assoc($result))
{
echo '<option value="' . $row['TYP_ZGLOSZENIA'] . '">' . $row['TYP_ZGLOSZENIA'] . '
</option>';
}
?>
Select Area:
<select name="countryList" id="countryList" >
handler:
<?php
$filter = $_GET['filter'];
$xml = '';
$iscountry = 1;
$query = "SELECT DISTINCT TYP_ZGLOSZENIA,PODTYP_ZGLOSZENIA from coredump1 where typ_z
gloszenia = '$filter' order by TYP_ZGLOSZENIA";
{
if ($iscountry == 1)
{
$xml = $xml . '<continent name="' . $row['TYP_ZGLOSZENIA'] . '">';
}
$xml = $xml . '<country id="' . $iscountry . '">' . $row['PODTYP_ZGLOSZENIA'] . '</country>';
$iscountry = $iscountry + 1;
}
$xml = $xml . '</continent>';
if ($iscountry == 1)
{
$xml = $xml . '<continent name="none">';
$xml = $xml . '<country id="0">no countries found</country>';
$xml = $xml . '</continent>';
}
?>
ajax
<?php
/ declare a
global XMLHTTP Request object
var XmlHttpObj;
// create an instance of XMLHTTPRequest Object, varies with browser type, try for
IE first then Mozilla
function CreateXmlHttpObj()
{
// try creating for IE (note: we don't know the user's browser type here, just attempting IE first.)
try
{
XmlHttpObj = new ActiveXObject("Msxml2.XMLHTTP");
}
catch(e)
{
try
{
XmlHttpObj = new ActiveXObject("Microsoft.XMLHTTP");
}
catch(oc)
{
XmlHttpObj = null;
}
}
// if unable to create using IE specific code then try creating for Mozilla (FireFox)
if(!XmlHttpObj && typeof XMLHttpRequest != "undefined")
{
XmlHttpObj = new XMLHttpRequest();
}
}
// called from onChange or onClick event of the continent dropdown list
function ContinentListOnChange()
{
var continentList = document.getElementById("continentList");
// get selected continent from dropdown list
var selectedContinent = continentList.options[continentList.selectedIndex].value;
// url of page that will send xml data back to client browser
var requestUrl;
// use the following line if using asp
requestUrl = "xml_data_provider.php" + "?filter=" + encodeURIComponent(selectedContinent);
// use the following line if using php
// requestUrl = "xml_data_provider.php" + "?filter=" + encodeURIComponent(selectedContinent);
CreateXmlHttpObj();
// verify XmlHttpObj variable was successfully initialized
if(XmlHttpObj)
{
// assign the StateChangeHandler function ( defined below in this file)
// to be called when the state of the XmlHttpObj changes
// receiving data back from the server is one such change
XmlHttpObj.onreadystatechange = StateChangeHandler;
// define the iteraction with the server -- true for as asynchronous.
XmlHttpObj.open("GET", requestUrl, true);
// send request to server, null arg when using "GET"
XmlHttpObj.send(null);
}
}
// this function called when state of XmlHttpObj changes
// we're interested in the state that indicates data has been
// received from the server
function StateChangeHandler()
{
// state ==4 indicates receiving response data from server is completed
if(XmlHttpObj.readyState == 4)
{
// To make sure valid response is received from the server, 200 means response rec
eived is OK
if(XmlHttpObj.status == 200)
{
PopulateCountryList(XmlHttpObj.responseXML.documentElement);
}
else
{
alert("problem retrieving data from the server, status code: " + XmlHttpObj.status);
}
}
}
// populate the contents of the country dropdown list
function PopulateCountryList(countryNode)
{
var countryList = document.getElementById("countryList");
// clear the country list
for (var count = countryList
.options
.length
-1; count >-1; count
--) {
countryList
.options
[count] = null; }
var countryNodes = countryNode.getElementsByTagName('country');
var idValue;
var textValue;
var optionItem;
// populate the dropdown list with data from the xml doc
{
textValue
= GetInnerText
(countryNodes
[count]); idValue
= countryNodes
[count].getAttribute
("id"); optionItem = new Option( textValue, idValue, false, false);
countryList.options[countryList.length] = optionItem;
}
}
// returns the node text value
function GetInnerText (node)
{
return (node.textContent || node.innerText || node.text) ;
}
?>
Prosze o przeniesienie do przedszkola - tam chyba bede mial wieksze szanse na pomoc.
Dziekuje.
Self solved - migracja wszystkiego do utf8
Ten post edytowa³ calebos 16.06.2008, 11:21:33