I have 4-level unbound tree and selectively expand (drill down into) some nodes (multiple levels down) based on querystring parameters.
The desired child nodes and child-child nodes are displayed, but the expansion icons on the parent nodes still show a collapsed state (+). Clicking on the icon to expand the node triggers the ServerSideCallBack, resulting in a duplicate set of child nodes. The expansion icon does then change to the expanded state (-).
When I decide to add child nodes in code I first set .Expanded=true on the parent node. This would seem to be the correct property to set, but it doesn't yield the desired result.
Before I post code, I'm just wondering if I'm missing something here (obvious or not).
Rob
The desired child nodes and child-child nodes are displayed, but the expansion icons on the parent nodes still show a collapsed state (+). Clicking on the icon to expand the node triggers the ServerSideCallBack, resulting in a duplicate set of child nodes. The expansion icon does then change to the expanded state (-).
When I decide to add child nodes in code I first set .Expanded=true on the parent node. This would seem to be the correct property to set, but it doesn't yield the desired result.
Before I post code, I'm just wondering if I'm missing something here (obvious or not).
Rob
3 Answers, 1 is accepted
0
Hi Robert,
Everything sounds correct. I am wondering how exactly you drill down the nodes, so posting a code will definitely help us find the problem quicker.
Thanks
All the best,
Veskoni
the Telerik team
Instantly find answers to your questions at the new Telerik Support Center
Everything sounds correct. I am wondering how exactly you drill down the nodes, so posting a code will definitely help us find the problem quicker.
Thanks
All the best,
Veskoni
the Telerik team
Instantly find answers to your questions at the new Telerik Support Center
0
Baatezu
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answered on 23 Jun 2008, 08:56 PM
This kinda sounds like something I encountered.
If you are creating a node and adding the sub-nodes on the server side then the parent node will need it's expand mode set to client side.
The basic idea is - Since you are expanding and adding the sub-nodes on the server, without the node requesting it, the nodes exist on the client side, so the expand method should be on the client side.
I hope that makes sense... If not - on the nodes that you are having trouble with, try changing the expand method to ClientSide and see if that fixes it. :)
If you are creating a node and adding the sub-nodes on the server side then the parent node will need it's expand mode set to client side.
The basic idea is - Since you are expanding and adding the sub-nodes on the server, without the node requesting it, the nodes exist on the client side, so the expand method should be on the client side.
I hope that makes sense... If not - on the nodes that you are having trouble with, try changing the expand method to ClientSide and see if that fixes it. :)