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

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.

Answer 1

[Mario Malic]

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.

Answer 2

[Image Analyst]

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.

[Mario Malic]

Property Value is same for both styles of edit field component.

Links for text style, numeric style.