Handling Alert in Selenium WebDriver (Selenium 2)

Question

driver.findElement(By.xpath(\"//input[@value=\'添加\']\")).click(); 
//Pops out an Alert and program stops, does not continue 

how to click the alert

Answer 1

In previous version of Selenium 2 I have had no choice that to handle alerts in Internet Explorer by overriding the window.alert in Javascript:

IJavaScriptExecutor js = (IJavaScriptExecutor)driver;
// Override window.alert to store the prompt and accept it automatically
js.ExecuteScript("window.alert = function(msg) { document.bAlert = true; document.lastAlert=msg; }");

// Do some stuff...

// Check for alert
Object o = js.ExecuteScript("return document.bAlert");
if (o != null && (bool)o == true)
{
    //retrieve the alert message
    o = js.ExecuteScript("return document.lastAlert");
    // Do something with the alert text
}

Selenium 2.0b3 has support for handling Alerts in IE and Firefox, so you can do the following:

IAlert alert = driver.SwitchTo().Alert();
// Get the text from the alert
string alertText = alert.Text;
// Accept the alert
alert.Accept();

However, I have not been able to get the above to work with Yes/No alerts (Dismiss() works for No but Accept() doesn't work for Yes). I'm in the process of looking at the IEDriver to work out why this is.