Treeview loading slow.

[Mufasa]

I have an explorer type app that when I need to update the tree, it takes
about 30 seconds. This is a bit annoying. Is there any way to speed up the
treeview ?

 

[Herfried K. Wagner [MVP]]

I have an explorer type app that when I need to update the tree, it takes
about 30 seconds. This is a bit annoying. Is there any way to speed up the
treeview ?

Only add dummy items to collapsed nodes containing more than one sub item
when initializing and add the nodes upon expansion of the nodes.

 

[G Himangi]

Make sure you call BeginUpdate before adding large number of nodes and
EndUpdate afterwards.

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- G Himangi, Sky Software http://www.ssware.com
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[Grant Frisken]

I have an explorer type app that when I need to update the tree, it takes
about 30 seconds. This is a bit annoying. Is there any way to speed up the
treeview ?

You might want to take a look at Infralution's Virtual Tree. It is
optimized for handling very large data sources and (unlike the
standard treeview) only creates user interface items for the rows that
are currently displayed. This gives it a much smaller memory
footprint and almost instantaneous load times. You can get more
information and download an evaluation version from:

www.infralution.com/virtualtree.html