QUESTION: Why are the TreeNodes disappearing?
lazarus / 31-LCL

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Marion · 2021-05-05 22:35

Does anyone know why the treenodes in my treeview are getting freed
when I collapse the tree? I don't have any code that is doing this. I
thought it might be my treenode.data going out of scope but those are
all now global variables, so that can't be it.

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Marion · 2021-05-05 22:45

This is strange. I finally deleted the treeview control and added a
new one. The nodes now stopped disappearing. I did have a
TTreeFilterEdit control (which I deleted) connected to the TreeView
and maybe that was "hiding" the nodes?