How can I get the datatip to display its tag?

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Andrew Dabrowski 2020-5-13

1
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https://ww2.mathworks.cn/matlabcentral/answers/525296-how-can-i-get-the-datatip-to-display-its-tag

回答： Shantanu Thatte 2021-6-25

采纳的回答： Shantanu Thatte

I've tried

output_txt = {[event_obj.Target.Tag]};

but frustratingly, Target gets the whole image rather than the datatip.

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Answer 1

Shantanu Thatte 2021-6-25

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Hi Andrew,

It seems like you are trying to show the Tag of the target object in the data tip. One possible solution is to customize DataTipTemplate property of the chart object. Here is an example:

l = plot(1:10,"Tag","I am tag");
% Customize the content of data tip
l.DataTipTemplate.DataTipRows = dataTipTextRow("Tag",repmat(string(l.Tag),numel(l.XData),1));
% Create data tip at index 2 or click to create data tip interactively
d = datatip(l,"DataIndex",2)