MATLAB: Load listbox content with main form

guilistboxload

Hello,

I create a GUI with Matlab which contains also a listbox. To fill the list box I have a function (fill_listbox).

Where have I to put this function, that the listbox is filled immediately after loading the GUI?

I solved this problem by clicking a button. Is there a more handy way?

Best Answer

Simon - if you have created your GUI using GUIDE, then put this fill_listbox function in the _OpeningFcn of your GUI. Else, if you are creating your GUI programmatically, then you can call this function soon after you have created the controls and just before you show the GUI.

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MATLAB: Listbox content from structure hierarchy (GUIDE)

Here "Car" etc are the "fields", not the "subfields" (which would mean something like: DataBase.Vehicle.Car).

DataBase.Car = 1;
DataBase.Bus = 2;
DataBase.Motorbike = 3;
List = fieldnames(DataBase);
uicontrol('Style', 'listbox', 'String', List);

Keeping the listbox "updated" when the struct is changed, is very complicated. You need an object oriented approach to start a callback, when the data are changed. But you can fake it by not adding further fields manually, but when you use a dedicated function for this:

function S = myAddField(S, Field, Data)
S.(Field) = Data;
updateGui(S);   % <-- Implementation depends on your GUI

MATLAB: Callback_listbox1 event to change content of another listbox2

project1 = get(hObject)

seems to be incomplete. Do you mean:

string   = get(hObject, 'String');
value    = get(hObject, 'Value');
project1 = string{value};

Best Answer

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MATLAB: Listbox content from structure hierarchy (GUIDE)

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