How to deactivate an editable component based on another component in Matlab app?

Question

Hendrawan Aji 2021-10-1

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1464929-how-to-deactivate-an-editable-component-based-on-another-component-in-matlab-app

评论： Hendrawan Aji 2021-10-2

采纳的回答： C B

Hi,

i'm trying to build an app with a structure as follows:

editable 1 (e.g., the input file name)
drop down list (leads to 4 available calculation scenarios. The options are 0, 1, 2, 3)
editable 2 (e.g., another required input which is only necessary in the case of scenarios 2 and 3)
Run button.

My question is, how can I hide/disable/deactivate editable component 2 in the GUI based on the input given in the drop down list?

The scenarios drop down doesn't have to be a drop down.

Thank you in advance.

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Answer 1

C B 2021-10-1

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1464929-how-to-deactivate-an-editable-component-based-on-another-component-in-matlab-app#answer_799624

% Value changed function: DropDown

function DropDownValueChanged(app, event)

value = app.DropDown.Value;

if strcmp(value,'Option 2')

app.EditField.Editable = false;

else

app.EditField.Editable = true;

end

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Kevin Holly 2021-10-1

在 MATLAB Online 中打开

If you have two dropdown boxes:

value = app.DropDown.Value;
if value == 'Option 2' || value == 'Option 3'
    app.DropDown2.Editable = 'off';
else
    app.DropDown2.Editable = 'on';
end