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Large tree take very long to load

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niv kfir
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niv kfir asked on 10 Aug 2010, 10:05 AM
Hi,
I'm trying to load a treeView with about 2400 nodes.
I'm using treeView.LoadXML(myString) or treeView.LoadXMLString(myString), but in both cases it take more than 3 min.

My PC is quite strong with:
Pentium Dual-Core 2.0Ghz
4GMb RAM
64bit Operating System

Expanding nodes in this tree is also a bit slow for the user.

Is there any way to improve those performance, like Rendering On Demand the child nodes or so?

Thanks,
Niv.

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Yana
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answered on 11 Aug 2010, 12:01 PM
Hello niv,

Please check this online example - it demonstrates different Load-On-Demand modes of RadTreeView. Also this blog post explains them in details.

Greetings,
Yana
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Chris
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answered on 11 Aug 2010, 02:52 PM
Hello,

Load on demand is great, but what if a single node has thousands of children?  If this is the case (as it is for me) then loading on demand all children of that node doesn't do any good for that particular node.  I've been trying to load only a set amount at a time (with the last node being a 'Show more' node), but haven't been able to add nodes to one that already has children from a previous post-back.

So, is there a good way to handle loading children of a node contiaining thousands of children?

Thanks,
Chris

Edit -
The easiest solution should be to group the child nodes into smaller subgroups in the repository itself so that there are more specific groups of nodes to load, rather than simply trying to load them all.  This takes no extra code, just some better organization.  I guess I answered my own question.
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niv kfir
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Chris
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