Error using matlab.ui.control.EditField/set.Value (line 98) 'Value' must be a character vector or a string scalar.

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duna saleh 2020-11-15

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评论： Mario Malic 2020-11-15

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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Answer 1

Mario Malic 2020-11-15

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编辑：Mario Malic 2020-11-15

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.