Not able to use Find Object and call object method in keyword tests to validate data

Experiments!

I am validating expected value against actual value. I want to make sure that the object is available before the validation happens, so I am using waitproperty, then in the property name and this could be totally wrong, I am using object.text and comparing it with the parameter value, if you see the last screenshot, you might get the idea. Anyways I could be totally wrong. 

Am understanding try catch concept correctly? Am I understanding waitProperty correctly? my understanding is other then the default time 10000 sec, TC waits for another 10s for object to be visible and then it does the Actions on the object, I guess I am asking questions that are not not related to my initial question.

Also is the below keyword test wrong, if the page is taking time to render and the object is not available, at least this is what I understood, because when I use object exist, many times the test fails because the object is not there, so I was reading on some of the material and i found waitproperty, now I might me using is completely wrong, but does the screenshot below makes sense or this is not the correct way to implement and I should use obj.exist and then use propertycheck and it is comparing correctly.

another thing I wanted to ask, do I need to use try catch if object does not exist, is there any event handler that I can configure in the test complete to catch object not found exception. I am new to TestComplete 🙂

try {

if (object.exist) 

    propertycheck

}

catch {

log.message

}