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Error using matlab.ui.​​control.E​d​itField/​se​t.Value (line 98) 'Value' must be a character vector or a string scalar.

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duna saleh
duna saleh on 15 Nov 2020
Commented: Mario Malic on 15 Nov 2020
I do simple App Designer to Circle/Sphere Calculations but I have error her
app.radius = app.EntertheradiusEditField.Value;
diameter = 2*app.radius;
[[[ app.ThediameterisEditField.Value = diameter;]]]
app.AreaEditField.Value=pi*app.radius^2;
app.CircumferenceEditField.Value =2*pi*app.radius;
app.VolumEditField.Value=(4/3)*pi*app.radius^3;
app.SurfaceEditField.Value=4*pi*app.radius^2;
Error using matlab.ui.control.EditField/set.Value (line 98)
'Value' must be a character vector or a string scalar.

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Accepted Answer

Mario Malic
Mario Malic on 15 Nov 2020
Edited: Mario Malic on 15 Nov 2020
Hello,
The component EDITED app.EntertheradiusEditField.Value is probably a Text Field, which accepts only characters/array, replace it with the numeric field component.
I would suggest you to work through the example applications in App Designer and you'll understand how things work clearly.

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More Answers (1)

Image Analyst
Image Analyst on 15 Nov 2020
Try this:
app.ThediameterisEditField.String = num2str(diameter);
Same for the other edit fields. The contents of the edit text box are the "String" property of the control not the "Value" property.

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