AJAX mainly used for updating particular DOM without reloading the page.

I've 2 combobox and 2 text boxes in HTML, would like to update text boxes & combobox2 if combobox1 selection changes from ALL.

Associate ACombo1.fex to combo1 with ALL option

-* File ACombo1.fex
-DEFAULT &CNT='_FOC_NULL';
TABLE FILE CAR
PRINT COUNTRY
WHERE COUNTRY EQ '&CNT'
ON TABLE PCHOLD FORMAT XML
END  

On combo2, have static COUNTRY values.

In your HTML,

//Begin function combobox1_onchange
function combobox1_onchange(ctrl) {
	 document.getElementById("combobox2").value = "0";
    document.getElementById("edit1").value = "";
    document.getElementById("edit2").value = "";
if (document.getElementById("combobox1").value != "_FOC_NULL") {
	 alert("Values changed");
  callServer();
}
}
//End function combobox1_onchange

var xmlHttp = false;


if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
  xmlHttp = new XMLHttpRequest();
}

function callServer() {
 var val = document.getElementById("combobox1").value;
 var url = "/ibi_apps/WFServlet" + "?" + "IBIF_ex=rifaz/ACombo1.fex" + "&" + "CNT=" + val;
 xmlHttp.open("GET", url, true);
 xmlHttp.onreadystatechange = domupdate;
 xmlHttp.send(null);
}

function domupdate() {
 if (xmlHttp.readyState == 4) {
     if (xmlHttp.status == 200 ) {
    var responseXML = xmlHttp.responseXML;
alert("response OK");
         var trs = responseXML.getElementsByTagName("tr");
         var tds = trs[0].getElementsByTagName("td");
         var cb1 = tds[0].firstChild.nodeValue;
          if (cb1 == 0){
             document.getElementById("combobox2").options[0].selected = true;
             }
          else {
          document.getElementById("combobox2").value = tds[0].firstChild.nodeValue;
             }
    document.getElementById("edit1").value = tds[0].firstChild.nodeValue.trim();
    document.getElementById("edit2").value = tds[0].firstChild.nodeValue.trim();

}
}
}  

This message has been edited. Last edited by: Rifaz,

Thanks for sharing Rifaz.

I have to admit that I am not impressed with IBI's implementation of FORMAT XML, as its HTML in an XML wrapper.

In the end - it's still just "parsing". But - I must admit - it took a bit more time to figure out what they were doing and parse it out because it's not exactly what I was expecting. So much for XPATHs :-)

It might be a dumb or valid question.

Can this program will work on MRE? I have my HTML in MRE and the fex in server but it is not working. When I run the fex directly in the browser, it works.

By the way, I am running the HTML in developer studio, is that be a issue?

I happen to do a lot outside of WebFOCUS with WebFOCUS wrapped around it. I just find it easier. I'm currently doing Google Maps API, even though it can be done in WebFOCUS there are limits, but if I do it within HTML (fex), then I have only Google API limits and I can still use my data being called through WebFOCUS to drive the map.

So basically, because of customer requirements that expand way outside of WebFOCUS, but they still require the use of WebFOCUS, I wrap it in HTML like his example above.

WFDevConsultant,

are you getting the "response OK" alert for responseXML variable?

I am getting error when try to display the responseXML.

I sent a private message to you.

Not to long ago I was using readyState and found out that IE/FireFox/Chrome tend to use it differently. If your project needs to be cross browser compliant, I would suggest checking the big 3 to make sure that you get the results that your expecting.

Hi Rifaz,

I'm trying to use your AJAX to refresh some parameters/filters in a HTML Page. I have 9 basic bar charts and 9 different parameters tied to those bar charts. I have some chaining going on with the parameters, but I want to tie all the parameters together (they are all in one hold file) and have them updated. For example) I have region, country, business unit, and sales rep all chained together, but if the user selects the lowest level, sales rep, I want the business unit, country, and region updated. That's just one process flow. Like I mentioned before I need all the parameters updated once the user selects one parameter. Can you help me out with this?

Thank you

Apologies for being too late to reply. I don't get a time to visit focal point now a days as I'm into infrastructure admin.
Have you looked into "Magically filter Reports in BI Portal" doc? I think that may solve your problem.