Programatically Delete UITree Nodes in App Designer

Question

Tom Hillman 2018-11-16

0
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https://ww2.mathworks.cn/matlabcentral/answers/430262-programatically-delete-uitree-nodes-in-app-designer

评论： Tom Hillman 2018-11-23

In App Designer I have created a Tree structure and have programatically popoulated it with a 2-level heirarchy using the example code:

% First level nodes
category1 = uitreenode(t,'Text','Runners','NodeData',[]);
category2 = uitreenode(t,'Text','Cyclists','NodeData',[]);
% Second level nodes.
% Node data is age (y), height (m), weight (kg)
p1 = uitreenode(category1,'Text','Joe','NodeData',[40 1.67 58] );
p2 = uitreenode(category1,'Text','Linda','NodeData',[49 1.83 90]);
p3 = uitreenode(category2,'Text','Rajeev','NodeData',[25 1.47 53]);
p4 = uitreenode(category2,'Text','Anne','NodeData',[88 1.92 100]);

I need to update some of these categories and overwrite with new data. Is there any way to programatically clear the whole Tree structure or delete individual nodes? I can't find anything in the documentation that suggests this is possible.

Thanks,

Tom