How to Uncheck the all Nodes and ChildNodes of TreeviewCheckbox using C sharp codings

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Hi Friends,

I am using Treeview Control with Checkbox in my windows application , i want to uncheck all the checkbox in Treeview but WITHOUT using FOR LOOP. If i use FOR LOOp means its taking long time if i have vry large data means , So can any one suggest me to Uncheck all Nodes and ChildNodes in Treeview WITHOUT using FOR LOOP. :) Thanks in Advance. :)

Posted 17-Jul-13 1:03am

SARAVANAKUMAR.M

Updated 17-Jul-13 1:06am

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**Joezer BH** · Answer 1 · 2013-07-17T01:12:00

Solution 1

See
check-and-uncheck-all-the-nodes-of-the-tree-view-in-c-sharp[^]

Note that you tried to avoid going through the elements, which of course is impossible.
the solutions could vary, using iteration or recursion.

Another thing you can optionally do is do lazy uhchecking, meaning that you uncheck only the displayed nodes, and when someone opens tree nodes uncheck all those as well.
This approach has its disadvantages like if your app drops suddenly those unopened are unchanged, but I guess if unchecking takes too long for you, then you probably used lazy loading of the nodes too...

* How big is your tree that unchecking all nodes is so time consuming??

Good luck,
Edo

Posted 17-Jul-13 1:12am

Joezer BH

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SARAVANAKUMAR.M 17-Jul-13 7:25am

Thanks for your reply Maimonides, I want to uncheck all nodes in treeview Without using FOR LOOP, because i will be having more than 5lakhs of nodes in treeview (Including All childNodes), so it will take very long time to uncheck all nodes in treeview , is there any other way to uncheck all nodes on any Button Click(Clear Button)?.:)

Joezer BH 17-Jul-13 7:27am

Tell me something, how did you load all the nodes to the tree view in the first place?

[ Nope :( there's no way of doing this in just one magic click ]

SARAVANAKUMAR.M 17-Jul-13 7:40am

I am retrieving data's from Database & just adding to a one Permanent Root Node of a Treeview. :)