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update box with TextAeaValuechanged callback don't run

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Luca Re
Luca Re 2023-6-24
评论： Luca Re 2023-6-26
hi, when i change text in this area nothing happens
Am I doing something wrong or should I select Add ValueChangingFcn callback?

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Cris LaPierre
Cris LaPierre 2023-6-24
It looks like you have already defined a callback function for when the value of the text area is changed. Have you added any code to it? Without seeng the code in the callback function, as well as knowing what it is you expect to happen, it's really difficult to provide specific feedback.
See the Adding callbacks in App Designer page for more details.
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Cris LaPierre
Cris LaPierre 2023-6-26
If you want the callback to execute when you are changing the value programmatically, you just need to call that function inside the callback function that is executing.
% Button pushed function: Button
function ButtonPushed(app, event)
[file,path] = uiputfile ({'*.*'}, 'Select a file');
[~,name,~] = fileparts(file);
app.TextArea.Value=name;
TextAreaValueChanged(app, app.TextArea)
end

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