Wait for one or the other element

[Kris]

To wait for an element to exist, you have to do this:

var element = app.FindName("element");
element.Wait.ForExists();

In my silverlight application, at some point I have to wait for either elementA to exist or elementB to exist. So I created two tasks that each wait for one of the elements to exist:

var waitForElementATask = Task.Factory.StartNew(() => WaitForElement("elementA"));
var waitForElementBTask = Task.Factory.StartNew(() => WaitForElement("elementB"));
Task.WaitAny(waitForElementATask ,waitForElementBTask);

with WaitForElement() being:

private void WaitForElement(string name)
{
   var element = app.FindName(name);
   element.Wait.ForExists();
}

I thought this would be a good way to find out which one of the two elements show up. However, when I run this code, neither element will ever be found, even though they do show up. 

Anybody has any ideas? 

[Anthony]

Hello Kris,

Please see our code sample article on How to Wait for an Element to Exist in Code.

Also keep in mind that we recommend using code only when absolutely necessary, and you can easily craft a Wait For Exists step from the Elements Menu through the UI without code.

Greetings,
Anthony
the Telerik team

[Kris]

Hey Anthony, thanks for your reply. I have no problem waiting for a single element. That is already working. However, I don't know how to wait for one of two elements to pop into existence. I guess there is no solution for that in Telerik Test Studio.

[Anthony]

Hello Kris,

I can think of a couple ways to accomplish this:

• Add an IF/ELSE logical step through the UI. Attach a Wait For Exists verification for element 1 to the IF portion. Add a Wait For Exists verification for element 2 to the ELSE portion.
• Take a similar approach in code, using either an IF/ELSE or TRY/CATCH statement.

Greetings,
Anthony
the Telerik team