Keeping track of checked nodes in treeview

[Cathryn Johns]

Hi

I have a treeview where I want to perform some actions on only the
checked nodes. I don't really want to have to traverse the entire tree
every time, since it's a pretty big tree, so what I was trying to do
was keep a list of all the checked nodes - I handle the aftercheck
event so that every time a node is checked I add it to my list, and
when it's unchecked I remove it from my list.

This can become clumsy, though - for example, if I want to
programmatically uncheck some nodes, I can't just iterate through my
list and uncheck them, since that will modify the collection that I'm
enumerating through.

Is there a better approach that I'm missing?

 

[Robbe Morris [C# MVP]]

I wrote a simplistic binding solution for the windows treeview
for .NET. You could then run a query against the DataSet
instead.

http://www.eggheadcafe.com/articles/treeview_databinding.asp

--
2004 and 2005 Microsoft MVP C#
Robbe Morris
http://www.masterado.net

Earn $$$ money answering .NET Framework
messageboard posts at EggHeadCafe.com.
http://www.eggheadcafe.com/forums/merit.asp