JAVASCRIPT: Using JavaScript to connect to web service

Recently i was asked to connect a CRM form to a webservice, the script had to provide some details from a field as a parameter and the response had to be recorded on the form.

Below is a snippet of how this was achieved.

{codecitation style="brush: javascript;"}

function GetDetailsFromWebService(scf)

{

if (Xrm.Page.getAttribute(scf).getValue() !== null)

{

var xmlHttp;

xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");

var WS_SERVER = "http://blah.com";

var strUrl = "";

//Build the url

strUrl = WS_SERVER + "/Webservice.LocationFile";

// Set the lookup string

strUrl += "?Parameter=" + Xrm.Page.getAttribute(scf).getValue();

xmlHttp.open("GET",strUrl, false);

xmlHttp.send();

var XMLDoc = new ActiveXObject("Microsoft.XMLDOM");

XMLDoc.setProperty("SelectionLanguage", "XPath");

XMLDoc.loadXML(xmlHttp.responseText);

//Read XML Document and Extract Data

}

else

{

Alert("Error");

}

}

 {/codecitation}

Enjoy

Jonathan