OK here's what i did to keep my nodes open. un my update function i call preventDefault() to stop the expected operations.
then i manually build using updated data my object instances then search the original objects till i find my matching object overwrite the orginial object with the new instance then run a refresh() on the dataprovider. This appears to be working for me and it is having the expected results.....so far :) -- jonese http://www.jonese.us http://twitter.com/jonese On Wed, Apr 23, 2008 at 9:27 PM, rockstar77877 <[EMAIL PROTECTED]> wrote: > > > > > > > Scott and Jonese: > > I am currently trying to deal with the same issue. I was > actually ALMOST there, but I think I have discovered a bug in Flex. > > So the problem: Keeping the AdvancedDataGrid nodes that were already > expanded, open after a filter and refresh (specifically > a 'GroupCollection' refresh). > > First, I got a nice array of objects containing the 'nodes' for the > grid nodes that were opened, "adg.dataProvider.openNodes" > Next, I did the filter and gc.refresh(). > The final step was to iterate through all the nodes, find out which > ones had the same "GroupLabel," and expand them > using "adg.dataProvider.openNode(node:Object)". > > This is where I ran into problems. When I tried to re-open a node > using openNode, the node would expand, but the nodes below it would > not be in the right tree level (it seems as if they were stepping > down in level one by one, even though they were supposed to be all on > the same level below it). Now here is a real kicker! If I go to > click on anything in the grid after that, the display automatically > corrects itself! So odd. > > If anyone has seen the same thing, or know what I'm even talking > about please let me know. Thanks! > > rockstar > > > --- In [email protected], "Eric Jones" <[EMAIL PROTECTED]> wrote: > > > > Did you ever figure out how to do this? > > > > jonese > > > > > > --- In [email protected], "smelbyfastlane" <smelby@> wrote: > > > > > > Hello - > > > > > > I am using an AdvancedDataGrid to display data that is retrieved > > > periodically from a HTTPService. When handling the result event I > > > parse the lastResult e4x into typed objects and put them into an > > > ArrayCollection which is the source for a GroupingCollection as > laid > > > out below. After doing all of this I call groupedData.refresh() > to > > > get my new data displayed. All of this works fine, except that > after > > > calling groupedData.refresh() my group nodes (in the grid) are all > > > collapsed. I have tried saving workItemsGrid.openItems into a > temp > > > variable, then setting it back after calling refresh... but that > does > > > not work. I am guessing that this is due to the fact that my data > > > provider has entirely different object instances than it had > > > previously. But, I am open to the idea that I just did it > incorrectly > > > somehow. Based on my thought that I have different objects in > the DP > > > than I did before I figured I could just save off the value of > > > "GroupLabel" for each openItem, call refresh(), then iterate over > the > > > group objects and call workItemsGrid.expandItem() for each that > has a > > > GroupLabel that was previously open. The problem with this > approach > > > is that I have not yet been able to figure out how to iterate > over the > > > groups. > > > > > > Any help in getting my previously open items to re-open is greatly > > > appreciated. > > > > > > Thanks in advance > > > Scott > > > > > > > > > > > > <mx:AdvancedDataGrid id="workItemsGrid" width="100%" > > > height="100%"> > > > <mx:dataProvider> > > > <mx:GroupingCollection id="groupedData" > > > source="{flatWorkItemsAC}"> > > > <mx:Grouping> > > > ... > > > </mx:Grouping> > > > </mx:GroupingCollection> > > > </mx:dataProvider> > > > ... > > > </mx:AdvancedDataGrid> > > > > > > >
