MATLAB Answers

Issue with Switch state in AppDesigner

32 views (last 30 days)
Jason
Jason on 16 Jan 2020
Commented: Cameron B on 16 Jan 2020
Hello, I am migrating from GUIDE to Appdesigner and can't understand why Im getting an error
I have a switch that I want to change the color of a lamp component:
% Value changed function: VioletSwitch
function VioletSwitchValueChanged(app, event)
value = app.VioletSwitch.Value
if value=='On'
app.Lamp_V.Color='#b700ff';
else
app.Lamp_V.Color='r';
end
This works when the switch is on, but not when the switch is off, I get the following error message which I dont understand
value =
'Off'
Matrix dimensions must agree.
Error in Spectrometer/VioletSwitchValueChanged (line 174)
if value=='On'

  0 Comments

Sign in to comment.

Answers (1)

Cameron B
Cameron B on 16 Jan 2020
Edited: Cameron B on 16 Jan 2020
function VioletSwitchValueChanged(app, event)
value = app.VioletSwitch.Value
if strcmpi(value,'On') == 1
app.Lamp_V.Color='g';
else
app.Lamp_V.Color='r';
end

  2 Comments

Jason
Jason on 16 Jan 2020
Thankyou, I've also found switch works, but I'd like t find out why the if else doesnt work
Cameron B
Cameron B on 16 Jan 2020
Yes, switch might be a better option for this. I edited my original response and replaced 'b700ff' with 'g'

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!