Is there a way in enable and disable tabs in Matlab?

Question

Sean 2023-9-13

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2020631-is-there-a-way-in-enable-and-disable-tabs-in-matlab

回答： Sean 2023-9-20

采纳的回答： Sean

在 MATLAB Online 中打开

I've been trying to be able to enable and disable the ability to go into a tab depending on the value of a

app.NumberOfTabsDropDown.Value

I tried switch cases for the callback, but I get a test case where it's not valid

function TabGroupSelectionChanged(app,event)
    selectedTab = app.TabGroup.SelectedTab;
    numberOfTabs = app.NumberOfTabsDropDown.Value; % It can only select 1 to 4
    % We don't need to check for Tab 1
    switch selectedTab.Title
        case 'Tab 2'
            switch numberOfTabs
                case '1'
                    app.TabGroup.SelectedTab = event.OldValue;
                case '2'
                    return
                case '3'
                    return
                case '4'
                    return
            end    
            
        case 'Tab 3'
            switch numberOfTabs
                case '1'
                    app.TabGroup.SelectedTab = event.OldValue;
                case '2'
                    app.TabGroup.SelectedTab = event.OldValue;
                case '3'
                    return
                case '4'
                    return
            end
            
        case 'Tab 4'
            switch numberOfTabs
                case '1'
                    app.TabGroup.SelectedTab = event.OldValue;
                case '2'
                    app.TabGroup.SelectedTab = event.OldValue;
                case '3'
                    app.TabGroup.SelectedTab = event.OldValue;
                case '4'
                    return
            end
    end
    
end

The code works, but there is a case if I change the app.NumberOfTabsDropDown.Value = 2 while I'm currently on 'Tab 4' and click on 'Tab 3', it goes back to 'Tab 4'. Is there a way to go back to the selected or can you equal it to itself? I feel like I just solved it, just by writing this out, but any comments or solutions would be helpful. (I tried to do an is statement, but it keeps on messing up and more cases arise.)

    case 'Tab 2'
        if app.NumberOfTabs.Value > 2
            app.TabGroup.SeletedTab = event.OldValue;
        end
    
    case 'Tab 3'
    if app.NumberOfTabs.Value > 3
        app.TabGroup.SeletedTab = event.OldValue;
    end
    
    case 'Tab 4'
    if app.NumberOfTabs.Value > 4
        app.TabGroup.SeletedTab = event.OldValue;
    end
    