javascript - xmlHttpResponse object not returning proper responseText in IE7 -
in application inorder avoid duplicate group names im trying validate user entered value through ajax call. im not receiving expected responsetext im receiving responsetext cache. js file: try{ if (window.activexobject) //ie var xhr = new activexobject("microsoft.xmlhttp"); else if (window.xmlhttprequest) //other var xhr = new xmlhttprequest(); else alert("your browser not support ajax"); }catch(e){alert("error in creting xmlhttpresponse: "+e);}
escname= document.forms(0).txtescalationname.value; escid = document.forms(0).hidgroupid.value; urlparam = "escname=" +escname +"&esccode=" +escid; alert(".."+urlparam); xhr.open("get", "/myapp/jsp/main/escalationnamecheck.jsp?"+urlparam+"&ran="+math.random() ,true); xhr.setrequestheader("cache-control","no-cache"); xhr.setrequestheader("pragma","no-cache"); xhr.onreadystatechange = function() { if (xhr.readystate == 4) { if (xhr.status == 200) { if (xhr.responsetext != null) { alert(document.getelementbyid("escalationnamevalidate")); try{ var populate = document.getelementbyid("escalationnamevalidate"); populate.innerhtml = xhr.responsetext; }catch(e){ alert("error!...."+e); } } else { alert("failed receive jsp file server - file not found."); return false; } } else alert("error code " + xhr.status + " received: " + xhr.statustext); } else alert("not ready"); } xhr.send(null); after referring here: responsetext - xmlhttprequest have tried mentioning event below gave exception saying target null or not object. xhr.onreadystatechange = function(event) { var xhr = event.target; if (xhr.readystate == 4) { alert("first if");
if (xhr.status == 200) {alert("second if");
if (xhr.responsetext != null) {alert("third if"+xhr.responsetext);
alert(document.getelementbyid("escalationnamevalidate")); try{ var populate = document.getelementbyid("escalationnamevalidate"); alert("11"); alert("pop.."+populate.innerhtml); populate.innerhtml = xhr.responsetext; }catch(e){ alert("error!.xhr..."+e); } } else { alert("failed receive jsp file server - file not found."); return false; } alert("escnameduplicate"+document.getelementbyid("escnameduplicate")); } else alert("error code " + xhr.status + " received: " + xhr.statustext); } else alert("not ready"); } so tried 1. giving cache-control no-cache in requestheader 2. making xhr local variable using var xhr while defining it. 3. pointed event-instance in onreadystatechange function also. browser version: ie7
kindly assist. regards, nidhya
