TooltipString won't show if uicontrol Enable is not 'on'

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Kat Lee 2019-1-23

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https://ww2.mathworks.cn/matlabcentral/answers/441133-tooltipstring-won-t-show-if-uicontrol-enable-is-not-on

评论： Kat Lee 2019-1-24

Hey MATLAB users,

I have a Edit style uicontrol label, which has set 'enable' to 'intactive' to make it not editable.

But now, I also want to add a tooltipString for this ui label, but since it's set to inactive, nothing will show.

I really dont want to use 'text' since there is no outline for the label box.

Is there anyway I could add TooltipString for this case.

there is one ticket about it, but didn't solve my question really well: https://www.mathworks.com/matlabcentral/answers/81029-tooltipstring-not-displaying-when-button-is-disabled

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Walter Roberson 2019-1-23

At the time you create the uipanel you can give char units and Position to it, and then create the uicontrol with units normalized and size [0 0 1 1]. After that set() the uicontrol to units char if you need to.

Kat Lee 2019-1-24

This one works !

So far, i guess this is the " best" choice I could have if I want to set to 'interactive' but still want to keep the tooltip.

Hope MATLAB could extend this uicontrol with more option for users.

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回答（1 个）

Luna 2019-1-24

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https://ww2.mathworks.cn/matlabcentral/answers/441133-tooltipstring-won-t-show-if-uicontrol-enable-is-not-on#answer_357839

编辑：Luna 2019-1-24

在 MATLAB Online 中打开

Here you can get the object, set editable property of the Java object as false like below and then add a tooltip.

hEditbox = uicontrol('String','Edit Text','Style','edit');
drawnow;
jEditbox = findjobj(hEditbox); % gets the java object handle
set(jEditbox,'Editable',false); % this will disable your editbox
set(jEditbox,'ToolTipText','Text is inactive for a reason'); % this will create a tooltip string

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Walter Roberson 2019-1-24

I seem to recall that there are some race conditions where a java object might not be allocated until the graphics object is rendered -- the drawnow() that Luna shows.

Kat Lee 2019-1-24