Giving a button a numeric value in app designer
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I was trying to create a button that would add a numeric value to text area so far I can't seem to get it to work, my code so far is
% Button pushed function: BananaButton
function BananaButtonPushed(app, event)
app.TotalCaloriesTextArea.Value =
[app.TotalCaloriesTextArea.Value{1} event.Source.Text];
end
end
3 Commenti
Walter Roberson
il 16 Mag 2020
It seems to me that you would want to test to see if the text area is empty, and if so initialize to 0 and otherwise pull out the text area value. (You are using app designer so I gather that text areas can be configured as numeric.) Then add the values, and write into the text area.
Something like
app.TotalCaloriesTextArea.Value = ...
app.TotalCaloriesTextArea.Value{1} + event.Source.Text;
or perhaps
app.TotalCaloriesTextArea.Value = ...
app.TotalCaloriesTextArea.Value{1} + str2double(event.Source.Text);
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