issues about app design

Question

wenchao zhang 2024-5-24

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2122176-issues-about-app-design

评论： Adam Danz 2024-5-28

hello, i have a following problem, the edit area of the code view seems frozened, it only force me to edit within the area which marked with white background, when i want edit to other area, no any respond, how to handle this.

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wenchao zhang 2024-5-24

移动：Voss 2024-5-25

white area is coding area, other area can not edit.

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Answer 1

VBBV 2024-5-24

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https://ww2.mathworks.cn/matlabcentral/answers/2122176-issues-about-app-design#answer_1462746

function DropDown(app,event)

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VBBV 2024-5-24

ok, @wenchao zhang, It seems you have added a function for ValueChangedFcn property for your GUI component i.e. dropdown. You can only edit it the Design Mode. Switch to that mode and select the GUI component and/or right click the item and modify the name., Then it will allow you to edit the callback function name. Ensure that callback name matches exactly in the app.

VBBV 2024-5-25

编辑：VBBV 2024-5-25

Please post a different question for this issue. Thanks. Accept the answer if you found it useful.

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Answer 2

Adam Danz 2024-5-24

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2122176-issues-about-app-design#answer_1462981

> the edit area of the code view seems frozened, it only force me to edit within the area which marked with white background

This is by design in App Designer. App Designer creates your app as a MATLAB class viewable in Code View where you can add properties and method functions but you cannot change the gray sections directly from within Code View.

You can change callback function names that are in the gray sections. In Code View, go to Code Browser (left panel) > Callbacks tabs, and right-click on the callback function name, then select "Rename".