Dynamically changing object locators for WPF/Silverlight applications

The solution is to override the built-in UIAutomation locator functionality (used when testing WPF/Silverlight applications) and modify the locator on the fly. The following simple example will change the location of a checkbox in the sample application to be a different position:

function Test()
{
 //Specify the customized locator behavior
 overrideLocators();
 
 SeS('CheckBox').DoClick();
}

g_load_libraries=["UIAutomation"];

function overrideLocators()
{
 UIAutomationLocator.fromLocationDef = UIAutomationLocator.fromLocation;
 
 UIAutomationLocator.fromLocation=function(objLocation, objInfo)
 {
     // Do something here if needed
  if (objInfo.location == 'tabControl1/tabItem1/checkBoxX')
  {
   objInfo.location = 'tabControl1/tabItem1/checkBox1';
  }
 
     // and/or call default locator
     return UIAutomationLocator.fromLocationDef(objLocation, objInfo);
 }
}