How to update a new created structure inside GUI

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Christopher Guzman
Christopher Guzman 2019-10-16
编辑： Pranjal Kaura 2021-9-3
I am making a GUI, and would like to create a new structure and be able to use it within the GUI script to add new fields after different events of different components of the GUI.
I have created the structure in the opening function as follows:
patient = struct();
After debugging, I realized the structure would be erased after the opening function. I try different forms of guidata() function to update it, but cannot seem to find an answer.

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回答（1 个）

Pranjal Kaura
Pranjal Kaura 2021-9-3
编辑：Pranjal Kaura 2021-9-3
Hey,
You can use the properties functionality in App designer to be able to use variables within your GUI/App script. Declaring a variable 'patient' within the 'startUpFcn' callback, would only make it a local variable (to the 'startUpFcn' function) and thus it would not be visible/accessible to the rest of your code.
You need to set 'patient' as a private/public property of the App, to be able to access it withtin the App. You can learn more about sharing data withtin Apps using the documentation.
Hope this helps!

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