. How do I Change the value in The Edit FIeld Box ( such as- Sample No : 01 , Sample no :02... so on) utpo 10 samples, by clicking on pushbutton.?

Question

Shaik Asif 2021-7-2

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https://ww2.mathworks.cn/matlabcentral/answers/870708-how-do-i-change-the-value-in-the-edit-field-box-such-as-sample-no-01-sample-no-02-so-on

回答： Shanmukha Voggu 2021-9-3

I Have Created a GUI with app designer in MATLAB 2020. I am trouble in finding this, I want 10 Samples to be displayed on the app.EditField text Box , one-by-one with the click on the Push Button !!

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Answer 1

Shanmukha Voggu 2021-9-3

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/870708-how-do-i-change-the-value-in-the-edit-field-box-such-as-sample-no-01-sample-no-02-so-on#answer_779914

在 MATLAB Online 中打开

samples.mlapp

Hi Shaik Asif,

Customizing call back functions and startupFnc helps to achieve the above task,

1)Edit the startup function of the app as

function startupFcn(app) 
            app.EditField.Value="Sample No : 01"; %initial value displayed
  end 

2)Edit the call back of the push button as

function ButtonPushed(app, event) 
            newStr = extractAfter(app.EditField.Value,": "); %extracting the sample number into string
            if newStr=="09" 
                app.EditField.Value="Sample No : 10"; 
            elseif newStr=="10" 
                app.EditField.Value="Sample No : 01"; 
            else 
                app.EditField.Value=replace(app.EditField.Value,newStr,"0"+num2str(str2num(newStr)+1)); %incrementing the sample number and updating it
            end    
end 