app class properties check

I have an App were one of the properties is another custom made class. I want to define the type of property to help programming.

The folder were this custom class is defined is not by default in the path, and I don´t want it to be.

Is there a way of adding folders to the path, before the properties are checked?

Thank you

[Taylor]

You could create a script where the first line is "path(...)" and the second line is "app = yourAppName;". It's a bit convoluted, but I do not believe there is a way to execute any code in an App before setting the Properties.

Answer 1

[Matt J]

I imagine that you could define your own property validation function,

https://www.mathworks.com/help/matlab/matlab_oop/property-validator-functions.html#bvkk9nf-1

and in it, set the path as needed.