dhtmlxcombogroup issue

Suite and Optimus Suite 5
#1

i am implementing dhtmlxcombogroup , I am having problem getting parent variable when i select an item from parentcombobox, sometimes i get the value but sometimes i am getting value as null

below is the code
var z3=new dhtmlXCombo(“combo_zone3”,“alfa5”,200);
z3.enableFilteringMode(true);
//model combobox
var z2=new dhtmlXCombo(“combo_zone2”,“alfa3”,200);
z2.enableFilteringMode(true);
z2.attachChildCombo(z3,"${pageContext.request.contextPath}/stripesMake.action?getDHTMLDerivativeData=&vehicleType="+document.makeForm.vehicleType.value);

	var z=new dhtmlXCombo("combo_zone","alfa2",200);		
  	z.enableFilteringMode(true);
	z.attachChildCombo(z2,"${pageContext.request.contextPath}/stripesMake.action?getDHTMLModelData=&vehicleType="+document.makeForm.vehicleType.value);
	
	z.loadXML("${pageContext.request.contextPath}/stripesMake.action?getDHTMLMakeData=&vehicleType="+document.makeForm.vehicleType.value);

am i implementing it properly, i debugged on the server side, same method is called twice when i select a value, sometimes when the method is called twice on server side, parent variable is null… is this right way

#2

The problem isn’t reproduced locally. You can provide the direct link to the problematic page to recreate the issue.