GUI Listbox - choose item in listbox and output corresponding variable in static

As per the question,

I want to create a GUI that output a value in a static text when an item is choosen from the listbox.

Coding as follows:

function dataselection
fig = uifigure('Position',[0.6 0.8 0.2 0.5]);
% value to correspnding postition

% Create Numeric Edit Field
ef = uieditfield(fig,'numeric','Position',[0.6 0.8 0.2 0.5]);

% Create List Box
lbox = uilistbox(fig,'Items', {'Accident', 'Visit', 'Pharma', 'Optical'},'Position',[0.6 0.8 0.2 0.5],'ValueChangedFcn', @selectionChanged);

% ValueChangedFcn callback
function selectionChanged(src,event)
    % Display list box data in edit field
    ef.Value = src.Value;
end

end

Answer 1

[Cris LaPierre]

For uilistbox, Value is a character array.

              Value: 'Pharma'
              Items: {'Accident'  'Visit'  'Pharma'  'Optical'}
          ItemsData: []
        Multiselect: 'off'
    ValueChangedFcn: @dataselection/selectionChanged
           Position: [150 150 100 100]

This means you have to either determine which number item it is before assigning a value to a numeric edit field, or your edit field should display text.

There are some other issues I fixed so be sure to take note of the differences between my code below and yours. I used the example on this page this page as a model.

function dataselection
fig = uifigure('Position',[300 100 400 400]);

% Create Numeric Edit Field
ef = uieditfield(fig,'Position',[150 50 100 20]);

% Create List Box
lbox = uilistbox(fig,'Items', {'Accident', 'Visit', 'Pharma', 'Optical'},...
    'Position',[150 150 100 100],...
    'ValueChangedFcn', @(lbox,event) selectionChanged(lbox,ef));
end

% ValueChangedFcn callback
function selectionChanged(lbox,ef)
    % Display list box data in edit field
    ef.Value = lbox.Value;
end