Submit one select field in ajax (not entire form) to get it's value and filter another select in php on same page -

-

it's first programming experience in ajax (or jquery) appreciate kind of help. trying have 2 select inputs in html form want when first select changed (onchange) have value use filter second select in php dynamically generate options, must happen without submitting entire form first select. tried following code whenever first select changes submit entire form. ajax function: 

function showkadaa(str) { if (str=="") { document.getelementbyid("txthint").innerhtml=""; return; }  if (window.xmlhttprequest) {// code ie7+, firefox, chrome, opera, safari xmlhttp=new xmlhttprequest();   } else {// code ie6, ie5 xmlhttp=new activexobject("microsoft.xmlhttp"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readystate==4 && xmlhttp.status==200) {    document.getelementbyid("kop").innerhtml=xmlhttp.responsetext; } } xmlhttp.open("get","annonce.php?mid="+str,true); xmlhttp.send(); }

the html code portion php: 

<?php if(isset($_get['mid'])) $q=$_get['mid']; else $q=$_session['mid'];?>  //code goes here  <tr><td>kadaa:</td><td><div id="kop"><select name="kadaa" id="kad" ><option value="default">[choisir     kadaa]</option>  <?php             if(login_db()){                                      $req="select `nom_kadaa`,`id` `kadaa` `id_mohafaza`=".$q."";                  echo $req;                 $kadaa="";                 if($res=mysql_query($req)){                     while($l=mysql_fetch_array($res)){                         echo "<option value=".$l[1].">".$l[0]."</option>";                     }                                        }             }                        ?> </select></div></td></tr>

p.s: ever put div of id="kop"
entire page submited in it. thing using 2 select on same page 

form action="<?php echo $_server['php_self'];?>

for getting on field value: jquery love use 

$("#idofelement").val();

by way, jquery has lot more handy methods ajax:

$.ajax({   type: "post",   url: "some.php",   data: { name: "john", location: "boston" } }).done(function( msg ) {   alert( "data saved: " + msg ); });

Comments

Post a Comment

Popular posts from this blog

django - How can I change user group without delete record -

-
on website user have 1 group. , user can change group. it's made user.groups.clear() and user.groups.add(new_group) but it's not efficient, because there 2 sql query: delete, insert. how can change group update query? user , group related each other using manytomanyfield . means intersection table exists relating both entities, , if don't specify model map (using through attribute) django creates 1 you. looking @ sources django.contrib.auth.models see that's case. fortunatly, can access intermediary model using through attribute of manager (in case, user.groups.through ). can use regular model. example: >>> alice = user.objects.create_user('alice', 'alice@example.com', 'alicepw') >>> employee = group.objects.create(name='employee') >>> manager = group.objects.create(name='manager') >>> alice.groups.add(employee) >>> alice.groups.all() [<group: employee...
Read more

java - Need to add SOAP security token -

-
i need set custom soap header attribute on jax-ws generated webservice client. case webservice calls must go through proxy server requiring specific token (recieved web request header) present in soap request header. e.g.: 1 carserviceservice service = null; 2 service = new carserviceservice(new url(url), new qname(qname); 3 carserviceendpoint port = service.getcarserviceport(); it seems in line 3 wsdl retrieved , call fails due missing security token. 1 point direction on how done? a detailed example has been mentioned here: creating , deploying jax-ws web service on tomcat 6 this article shows how create , use security token .
Read more

java - EclipseLink JPA Object is not a known entity type -

-
i have strange problem eclipselink , object want persist. have 1 object (keypointlistimpl) stores object keypointimpl in list. persisting keypointimpl objects works great if try persist keypointlistimpl object java.lang.illegalargumentexception says object keypointimpl isn't known entity type. here keypointimpl code: @entity @table(name="keypoints") public class keypointimpl implements keypoint { @id @generatedvalue(strategy = generationtype.identity) private int id; @enumerated(enumtype.string) private detectortype keypointtype; private float x; private float y; private float size; private float angle; private float response; private int octave; private int classid; ... } here keypointlistimpl code: @entity @table(name="keypointlists") public class keypointlistimpl implements keypointlist { @id @generatedvalue(strategy = generationtype.identity) private int id; @onetoone(cascade={ca...
Read more