Text Generation based on button click

Hi All,

I have a requirement like..When we click on a button named "Generate", a text field beside it will get autopopulated with some  reference number. I developed a script to click on this button using selenium webdriver. The test case gets executed but the text field doesnot get populated. Is there any way to rectify this. Please help.

                WebDriverWait refNum_Wait = new WebDriverWait(driver,20); 
refNum_Wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("genRefNo"))); <==Button id
driver.findElement(By.id("genRefNo")).click();
driver.manage().timeouts().pageLoadTimeout(10, TimeUnit.SECONDS);

refNum_Wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("refNum")));   <== Text box id
System.out.println("Text::"+driver.findElement(By.id("refNum")).getText());

Final sysout for the text box comes as empty..


Thansks,
Balaji S

As you said "The test case gets executed ", does this mean it clicked on the button successfully,or without clicking test case got successed.... Make sure your clicking on the expected elem,ent

Please post your question in official webdriver forum  - 
www.seleniumtests.com/p/selenium-2-forum.html