variable: global or in guidata
2 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
which is more useful in gui programming, to save the variable in handles structure or to make it global to have access on it?
0 comentarios
Respuesta aceptada
Daniel Shub
el 17 de Nov. de 2011
I would suggest you avoid global variables. They are more powerful than what you need, and therefore probably not the best choice. The FAQ has a couple of suggestions:
0 comentarios
Más respuestas (2)
Alex
el 17 de Nov. de 2011
Global variables are often a bad choice when programming.
Another option for sharing data through a gui is basing the gui in a class. This is my preferred method.
0 comentarios
Jan
el 17 de Nov. de 2011
In case of problems it is hard to find the code, which is responsible for the last changes in the global variables. In addition the uasge of globals lead to problems, if you want to open multiple instances of the GUI.
Therefore I prefer guidata - which calls setappdata internally, so you can call it directly also. Using the figure's UserData is equivalent. For conventional reasons I use the UserData for static values as handles and the application data for dynamic values like the current choice of variables etc. But this is a question of taste.
0 comentarios
Ver también
Categorías
Más información sobre Whos en Help Center y File Exchange.
Productos
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!