Waitproperty for keyword tests

        I'm making use of keyword test. I want the test to run depending on a textbox value. When an operation has been performed, a textbox displays the result. Till the result is displayed in the textbox the test should wait and continue once the value in that textbox is changed. I was searching through the internet for ideas and I realised that "waitproperty" method would be a better idea to implement this. I would like to know how this waitproperty can be used on TextBoxes so that it gets the value of it, checks for the specified result and continues once it's changed.