I guess the easiest way is to define it in the SelectionChangedFcn of the uitree:
fig = uifigure;
t = uitree(fig);
parent = uitreenode(t,'Text',"parent");
child = uitreenode(parent,'Text',"child");
expand(t)
t.SelectionChangedFcn = @(treeobj,~) ParentUnselectible(treeobj)
function ParentUnselectible(treeobj)
if strcmp(treeobj.SelectedNodes.Text,"parent")
treeobj.SelectedNodes = [];
end
end
Multiselect "on" will require few additional changes. If you base it the node property "Text" (as I did) each node will have to have unique name & editable will break it - it better done using the "Tag" property, or by hard-coding handle list & using "ismember"
