CheckBoxTree - Programmatic Checking/Unchecking of Nodes

Question

Randy Price 2022-4-28

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https://ww2.mathworks.cn/matlabcentral/answers/1707675-checkboxtree-programmatic-checking-unchecking-of-nodes

评论： Fabian Schnurre 2023-12-7

采纳的回答： Randy Price

How can I programmatically check/uncheck nodes of a CheckBoxTree?

edit: spelling

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Answer 1

Randy Price 2022-4-29

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https://ww2.mathworks.cn/matlabcentral/answers/1707675-checkboxtree-programmatic-checking-unchecking-of-nodes#answer_953825

Resolved - assign nodes of the CheckBoxTree to its "SelectedNodes" property.

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STEVEN SATTERFIELD 2023-1-12

编辑：John Kelly 2023-10-23

It is not the "SelectedNodes" property, but rather the "CheckedNodes" property to which you must add or remove nodes. What would be helpful is an example of how to do that.

Fabian Schnurre 2023-12-7

yes, please give more information about that

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Answer 2

Kris Hoffman 2023-3-3

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1707675-checkboxtree-programmatic-checking-unchecking-of-nodes#answer_1184910

编辑：Kris Hoffman 2023-3-3

在 MATLAB Online 中打开

I'm using app designer and came across this issue. The above answers gave me the idea to simply address them in the 'CheckedNodes' attribute of the tree.

The first entry is put into the 'CheckedNodes' list does not need to be indexed.

app.Tree.CheckedNodes = app.Tree.Children(i).Children(j)

The following code adds the 3rd child of the 5th parent entry (I know it says children twice), to the end of the entries in the 'CheckedNodes' attribute.

app.Tree.CheckedNodes(end+1) = app.Tree.Children(5).Children(3)

then checking the checked nodes:

app.Tree.CheckedNodes

The last entry is there!

You can also add all entries under a "parent" node as follows:

app.Tree.CheckedNodes(end+1) = app.Tree.Children(5).Children

Now to remove a specific entry, as far as I know, you would need to know where it is in the TreeNode array. I was able to uncheck a box by using the following code.

app.Tree.CheckedNodes(2) = '';

The entry was removed and box, unchecked!

Hope that helps!