How can I hide the App Designer Slider Control's built in label programmatically?

Question

Christopher Lanning 2021-3-1

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/759836-how-can-i-hide-the-app-designer-slider-control-s-built-in-label-programmatically

评论： Allen 2021-3-1

I have an App with a series of Slider Controls. One of these controls is made visible or not visible by the status of a checkbox control as follows:

function ctrl_check_chkValueChanged(app, event)            
    sldr = app.ctrl_sldrOfIntrest;
    if app.ctrl_check.Value
        sldr.Visible = 'on';               
    else
        sldr.Visible = 'off';               
    end
end

However, even when 'Visible' is set to 'off', the label for the control remains visible. I would like to make the label dissapear as well. Thoughts?

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Answer 1

Allen 2021-3-1

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/759836-how-can-i-hide-the-app-designer-slider-control-s-built-in-label-programmatically#answer_636596

在 MATLAB Online 中打开

In App Designer the label handles are created in conjunction with, but separately from the main object. The handles for the labels are not shown in the Component Browser panel by default, but you can right-click on any of the items in the that panel to bring up an incontext menu that allows you to show/include those label handles in the browser.

Then it becomes are simple as you are currently doing to change the visibility for the slider.

function ctrl_check_chkValueChanged(app, event)            
    sldr = app.ctrl_sldrOfIntrest;
    if app.ctrl_check.Value
        sldr.Visible = 'on';
        app.("your label handle").Visible = "on";
    else
        sldr.Visible = 'off';
        app.("your label handle").Visible = "off";
    end
end

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Christopher Lanning 2021-3-1

Good grief. That is simple. Thanks!

Allen 2021-3-1

You are welcome. Sometimes, it is nice to come across a problem with a simple solution. I know about the hidden label handles and it still bites me from time to time.

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