CheckBoxTree - Programmatic Checking/Unchecking of Nodes

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Randy Price
Randy Price 2022-4-28
评论： Markus Leuthold 2025-7-16
How can I programmatically check/uncheck nodes of a CheckBoxTree?
edit: spelling
  1 个评论
Markus Leuthold
Markus Leuthold 2025-7-16
I understand how to check nodes
treeRoot = uitree("checkbox");
node1 = uitreenode(treeRoot, text="A - level 1");
node2 = uitreenode(treeRoot, text="B - level 1");
node3 = uitreenode(node1, text="A - level 2");
check A, which implicitly checks A level 1&2
treeRoot.CheckedNodes = node1;
check B
treeRoot.CheckedNodes = [treeRoot.CheckedNodes; node2];
How to uncheck A and its child?? Checking implicitly sets children as well, but not unchecking? Not sure if this was intended by @MathWorks Support Team
treeRoot.CheckedNodes(treeRoot.CheckedNodes == node1) = []; % does not work, because node2 is still toggled
This works, but it seems like I need to keep track of the tree myself?
treeRoot.CheckedNodes(ismember(treeRoot.CheckedNodes, [node1,node3])) = [];

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采纳的回答

Randy Price
Randy Price 2022-4-29
Resolved - assign nodes of the CheckBoxTree to its "SelectedNodes" property.
  2 个评论
STEVEN SATTERFIELD
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.

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更多回答（1 个）

Kris Hoffman
Kris Hoffman 2023-3-3
编辑：Kris Hoffman 2023-3-3
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!
  1 个评论
Fabian Schnurre
Fabian Schnurre 2023-12-7
string compare and everything that ai playground offers as an solution to find the place where the node is in the array doesn't work

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