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The desired functionality of the 'Advanced' combo box is a quick search method. Each item in Comb Boxes has a toasting () method, As they can be displayed in the drop down list. When clicking on an item in the drop-down list, supervisors of combobox are notified about selection.
In addition, every time the text typed in the combo box changes, a list of "candidate" is generated, all those items are included in the drop down list that have been typed so far Includes text. The hit will take you to the first candidate in that list, repeatedly kills the entry cycle through the list.
I have implemented this functionality by getting from the combo box - I came to understand that I am still functional with a Cambodia, it has just added this "QuickFind" feature. However, through this there is no logic, simplicity, completely trivial to create candidate list and cycle, and enjoy some trials.
However, as it was seen it does not seem easy to test a combo box and in addition to this I have added the extra routine - it needs to behave in the same way as an application As it happens in the application. It takes a lot of effort to test a simple addition to a simple combo box!
Anything in the code for the cycles through the candidates is not specific to my application - though - I have created a general control that can be used in any context, only requires that the cambod In objects, there is a toasting () methioad, which is the same restriction that is going on in the normal combobox on objects, and is guaranteed by C # NET.
So, with the testability in mind, where will you keep growing functionality?
You reference with the post: Separation of logic from GUI elements is also the solution.
You should consider using a controller-like class that exposes a list of items that you are responsible for maintaining this list on your own combo box 'Datasource' controller itself. .
So whenever you type a letter in the combo box, you call a function on the controller, say aa, the update list (string typed string) in this way you have the 'candidates' The logic of filling the list is separated.
Now you can easily write many tests, which monitor each call UpdateList () with the various arguments and the list of items. There is no GUI stuff to test, you are only testing algorithms.
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