Win a copy of 97 Things Every Java Programmer Should Know this week in the Java in General forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Paul Clapham
  • Jeanne Boyarsky
  • Junilu Lacar
  • Henry Wong
Sheriffs:
  • Ron McLeod
  • Devaka Cooray
  • Tim Cooke
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Frits Walraven
  • Tim Holloway
  • Carey Brown
Bartenders:
  • Piet Souris
  • salvin francis
  • fred rosenberger

ajax:callback function not called for every readystatechange of the request

 
Greenhorn
Posts: 4
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi
I am working with an ajax program.
In that i have defined a callback funtion
but that function is not being called for every readystatechange of the request object for the first request .
but it is working fine from the second request.

function find(start,number){
var nameField=document.getElementById("text1").value;
var starting=start;
var total=number;
if(form1.criteria[0].checked) {
http.open("GET", url + escape(nameField)+"¶m2="+escape("exact")+"¶m4="+escape(starting)+"¶m5="+escape(number));
}
else if(form1.criteria[2].checked) {
http.open("GET", url + escape(nameField)+"¶m2="+escape("prefix")+"¶m4="+escape(starting)+"¶m5="+escape(number));
}
http.onreadystatechange = callback2;
http.send(null);
}

function callback2(){
if (http.readyState == 4) {//request state
if(http.status==200){
var message=http.responseXML;
alert(http.responseText);
Parse2(message);
}else{
alert("response is not completed");
}
}else{
alert("request state is :-"+http.readyState);
}
}
 
author
Posts: 15385
6
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
how are you defing http and when you mean it is working for the second request, you talking if branch or calling it twice. If twice, how fast is the request apart?

Eric
 
Weeds: because mother nature refuses to be your personal bitch. But this tiny ad is willing:
Devious Experiments for a Truly Passive Greenhouse!
https://www.kickstarter.com/projects/paulwheaton/greenhouse-1
    Bookmark Topic Watch Topic
  • New Topic