Selenium getting data from another tab instead of active one

Question

We have a legacy remote system here that dont have webapi, webservice, ...
then we need to do integration by Selenium.
We need open multiple tabs from one master tab to

Answer 1

WebDriver will not automatically switch focus to a new window or tab, so we have to tell it when to make the switch.

To switch to the new window/tab, try:

driver.SwitchTo().Window(driver.WindowHandles.Last());

Then, when you are finished on the new tab, close it and switch back to the primary window:

driver.Close();
driver.SwitchTo().Window(driver.WindowHandles.First());

Then from here, you can continue your test.

I'll add a quick disclaimer that I do not have Visual Studio installed on the machine I'm using at the moment and haven't tested the code above. This should, however get you in the right direction.

EDIT: Looking at your code a second time, this example above would replace the SendKeys() call to attempt to switch tab focus:

IWebElement elmBdy = driver.FindElement(By.CssSelector("body"));
elmBdy.SendKeys(Keys.Control + "2");