Code is not getting executable after opening pop up in selenium - selenium-webdriver

Question

Please find below the code :
d.findElement(By.id("txtUserName")).clear();
d.findElement(By.id("txtUserName")).sendKeys("polarissupport#polaristest.net");
Thread.sleep(2000);
d.findElement(By.name("txtTempBox")).clear();
Thread.sleep(2000);
d.findElement(By.id("txtPassword")).sendKeys("password");
d.findElement(By.id("btnsubmit")).click();
Thread.sleep(2000);
d.findElement(By.id("ctl00_ContentPlaceHolder1_rdoAdmin")).click();
Thread.sleep(2000);
d.findElement(By.id("ctl00_ContentPlaceHolder1_lnkContinue")).click();
Thread.sleep(5000);
//GC Inbox
String s1 = "CHR-665";//d.findElement(By.id("ctl00_ContentPlaceHolder1_lblrequestidtext")).getText(); //For taking Request Id
String tem[] = s1.split("-");
d.findElement(By.id("ctl00_ContentPlaceHolder1_ctlCommonInbox_txtGrantID")).sendKeys(tem[1]);
d.findElement(By.id("ctl00_ContentPlaceHolder1_ctlCommonInbox_lnkSearch")).click();
Thread.sleep(5000);
d.findElement(By.id("ctl00_ContentPlaceHolder1_ctlCommonInbox_grdAdminGrantCHR_ctl00_ctl04_btnAction")).click();
Thread.sleep(8000);
d.findElement(By.xpath("//*[#id='ctl00_ContentPlaceHolder1_lnkReleasePayment']")).click();
After the last line which opens the Pop-up, code is not getting executable to handle this opened Pop-up.
Please find below the code through which I handled the Pop-up:
String MainWindow=d.getWindowHandle();
Set<String> set=d.getWindowHandles();
Iterator<String> it=set.iterator();
while(it.hasNext())
{
System.out.println("Inside While");
String ChildWindow=it.next();
if(!MainWindow.equalsIgnoreCase(ChildWindow))
{
d.switchTo().window(ChildWindow);
d.close();
}
}
System.out.println("Outside While");
d.switchTo().window(MainWindow);
Please let me know how to execute Pop-up handling code when Pop-up is opened because when I close the Pop-up manually then only this Pop-up handling code executes not at the time when Pop-up is opened.
Please let me know if question doesn't provide satisfactory information.
Thanks

Answer 1

Try Using Alert class or PopupWindowFinder Code in the link is based on c#, i hope you can convert it to your desired language easily
popup's in selenium webdrivers