Now that we have our preference service in place, we can now add a functionality to our portfolio window, knowing that the changes done by our user won't be lost.
Probably the most important feature in our application is the ability to add new stocks. Let's start with this one. We will add a
click event handler on the
btnAddStock button. Inside this handler, we will create a new
Stock object using the symbol (in upper case), and quantity entered by the user. Once our stock object is created, we will add it to the table view underneath using the
addCustomRow function. We will create this function in just a moment, but for now, remember that it takes two parameters, the table view ...