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How do I create a call back function that updates a "Label" when I push a button? (Calculator)

Asked by Shane Grover on 29 Mar 2019
Latest activity Answered by Image Analyst
on 29 Mar 2019
Hello all, I am trying to impliment a GUI for my Calculator program. I have the GUI fully laid out and I am attempting to get my Label to update when I push a button. I am currently trying to get it to work by creating a call back for my button, lets call it Button_1, the button is supposed to set the value of the Label to 1. Any help would be much appriciated, I do not know where to start.

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Release

R2019a

2 Answers

Answer by Image Analyst
on 29 Mar 2019
 Accepted Answer

Set the string property in the button callback:
function button1_Callback(hObject, eventdata, handles)
handles.Label.String = '1'; % Whatever

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Answer by Kevin Phung on 29 Mar 2019

assign a tag to your label, which I assume is a text graphic object.
example:
txt1.Tag = 'label1';
function button_1callback(hObj,event)
label1= findobj(gcf,'Tag','label1');
label1.String = 'whateverValue';
end

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