How can I change the state of multiple CheckBoxes in App designer?

Question

Rafael Campos 2018-10-27

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/426472-how-can-i-change-the-state-of-multiple-checkboxes-in-app-designer

回答： Voss 2023-12-21

I am working on a GUI that has 200 checkboxes. They have tags like "app.CheckBox_X_Y", where X can have values from 1 to 50 and Y can have values from 1 to 4.

I'd like to change the state of the last checkbox and this must change the state of all others at once.

I tried the following code, but it's giving me error "Error using set - Invalid handle". Can someone help me?

          function CheckBoxPelota_X_1ValueChanged(app, event)
              if app.CheckBoxPelota_X_1.Value == 0
                  for cont1 = 1:1:50
                      for cont2 = 1:1:4
                          set(sprintf('app.CheckBoxPelota_%d_',cont1),'Value', 1);
                      end
                  end
              else
                  for cont1 = 1:1:50
                      for cont2 = 1:1:4
                          set(sprintf('app.CheckBoxPelota_%d_',cont1),'Value', 0);
                      end
                  end
              end
          end

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Answer 1

Voss 2023-12-21

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/426472-how-can-i-change-the-state-of-multiple-checkboxes-in-app-designer#answer_1375817

在 MATLAB Online 中打开

I'll assume that the description, "tags like "app.CheckBox_X_Y", where X can have values from 1 to 50 and Y can have values from 1 to 4", is accurate, that CheckBoxPelota_X_1ValueChanged is the ValueChangedFcn of the top-most "Marcar Todos" checkbox, that that checkbox's tag is CheckBoxPelota_X_1, and that (un)checking it should set the Value of all other checkboxes in the top row to match the Value of app.CheckBoxPelota_X_1 and not effect the checkboxes in the other three rows.

function CheckBoxPelota_X_1ValueChanged(app, event)
    val = app.CheckBoxPelota_X_1.Value;
    for cont1 = 1:50
        set(app.(sprintf('CheckBox_%d_1',cont1)),'Value',val);
    end
end