Display information when ticking the checkbox in app designer.

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Yen 2023-3-25

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https://ww2.mathworks.cn/matlabcentral/answers/1935099-display-information-when-ticking-the-checkbox-in-app-designer

移动：Adam Danz 2023-3-27

hi, I'm having a little problem: how to click on the check box, the parameters like Size , Color.. will appear on the screen.

Please help me and thanks a lot

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Adam Danz 2023-3-25

You must assign a ValueChangedFcn to the checkbox to react when users check or uncheck the box.

Within the ValueChangedFcn, you can turn off/on the Visible property of the Size and Color objects based on the Value returned within the callback function.

Yen 2023-3-26

I wrote like that and not sure if it's correct. Can you help me go to the next part?

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Answer 1

Adam Danz 2023-3-26

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https://ww2.mathworks.cn/matlabcentral/answers/1935099-display-information-when-ticking-the-checkbox-in-app-designer#answer_1201944

移动：Adam Danz 2023-3-27

See this answer (Step 3) to learn how to add a ValueChangedFunction. This will add a callback function in your app's code. https://www.mathworks.com/matlabcentral/answers/503673-app-designer-create-a-discrete-slider#answer_414023
The Callback function will have 2 inputs. You can get the value of the checkbox from the first input using something like value=app.Checkbox.Value
If the Value is true, then you should turn on the visible properties of the objects you want to control. app.OBJECT.Visible=true, where OBJECT is the handle to whatever object you're targetting. If the Value is false, set visible to false.