Sum of numeric field boxes must equal 100 before user can press a plot button.

I have four numeric field boxes on app designer where the user inputs a value between and including 0 and 100 for each box. Once the user has input this, they will press a plot button to run the program.

How can I make it such that the sum of the four numeric field boxes must equal 100, otherwise the user cannot press the plot button?

Thank you

Answer 1

[Ameer Hamza]

Check the attached app for an example of how it can be done.

[Ashton Linney]

Thank you for your answer Ameer.

Do you know how to make an error message appear for the user, if the sum does not equal 100, stating that they must sum to 100 in order to plot the graph?

[Ameer Hamza]

Ashton, replace the if-end block, in the code view, with this

if value == 100
    x = linspace(0,10);
    y = sin(x);
    plot(app.UIAxes, x, y);
else
    msgbox('Sum is not 100', '', 'error');
end

[Ashton Linney]

Absolutely perfect, thank you sir!

[Ameer Hamza]

Glad to be of help.