Re: GWT CellTree update nodes on the fly

I have the exact same problem, albeit for any browser in fact. As well
keeping record of data providers is not sustainable for me. I am
looking into opening and closing the parent node to refresh but at
this stage I am not sure if it is completely possible.

On Feb 16, 7:05 pm, Lakshitha Ranasinghe <lakshitha....@gmail.com>
wrote:
> I have recently used GWT CellTree widget to populate an XML data in my
> project, The tree allows user to add, edit, move up/down tree nodes
> and finally update the actual XML file, I have managed to implement
> this functionality by storing ListDataProvider instances  which are
> used in the tree.
> if user removes a node I remove it from both corresponding data
> provider instance and XML tree. Then it updates the list dynamically
> and reflects the changes in the tree. I used this approach because I
> did not find any other alternative way to do dynamic tree manipulation
> in GWT cell tree.
>
> but I encountered a problem with node removal functionality in IE (7 &
> 8). after removing a node and try to collapse or open any node in the
> tree GWT throws a runtime "'firstChild' is null or not an object"
> error and cannot do any operation on the tree after that.
>
> Can anyone faced this problem? please let me know if there are any
> workaround found, I am using GWT 2.1.1
>
> Thanks

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