Modify the Edit Horse function to give it a Subfile selector option. The new facility should let the user zoom against the detail line for a particular horse on the Edit Horse panel in order to view a subsidiary display of the races in which the horse has raced.
To achieve this, you will define a new function, Display Racing results. The new function will display information from the RACE ENTRY file for the horse selected. You also need to modify the action diagram of the existing Edit Horse function to call the new function. Note that CA 2E lets you define the new function while you are in the process of modifying the action diagram of the existing function.
The two functions will be implemented as separate programs. The Horse code of the selected line will be passed as a parameter between the two programs in order for the Display Racing results program to display race entries for a particular horse.
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