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How can i save the text area characters to a text file in app designer?

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I need to save notes in the text area to a specific location. How to save the data using app designer?

Respuesta aceptada

Siriniharika Katukam
Siriniharika Katukam el 18 de Feb. de 2020
Hi
To load text entered in text area of an app to a text file, you can do this in the callback function of text area.
value = app.TextArea.Value; % Value entered in textArea
f=fopen('a.txt','w');
formatSpec= "%s";
for i =1:length(value)
fprintf(f,formatSpec,value{i});
end
Hope this helps!

Más respuestas (2)

kuldeep vaishnav
kuldeep vaishnav el 24 de Mayo de 2020
value = app.TextArea.Value; % Value entered in textArea
f=fopen('a.txt','w');
formatSpec= "%s";
for i =1:length(value)
fprintf(f,formatSpec,value{i});
end

David Szwer
David Szwer el 19 de Feb. de 2021
Try using the writecell() function. As far as I can tell, although a TextArea's Value can be set in numerous different formats, when used as an output it always emerges as a cell array of character arrays (one line in each cell). writecell() turns this straight back into a multiline text file. Adapting Siriniharika Katukam's answer:
value = app.TextArea.Value; % Value entered in textArea
writecell(value, 'a.txt', 'QuoteStrings',false);
Matlab's documentation suggests that QuoteStrings is false by default; I found that it was true by default so you need to turn it off.
  2 comentarios
David Duque
David Duque el 22 de Jul. de 2021
how can I choose a path to save the txt file?
David Szwer
David Szwer el 23 de Jul. de 2021
'a.txt' is the filename. Replace that with the filename you want, including the full path.

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