That is correct. I am getting index 5, all the way. Even the DataGridEvent.rowIndex reports 5. I have not been able to catch index 4 anywhere. I even considered a mouseDown handler.
And the DataGrid refresh is what is causing the problem, that happens when I assign the _xlcProjItems = new XMLListCollection() WITHIN an editing session. It is a pretty complex series of actions, ending an edit session by clicking another row, and by adding in the data model update and dataProvider re-assignment, it just is nuts. I am now setting a flag in the itenEditEnd handler, and NOT calling preventDefault. In my hangeWatcher handler, if I am in an edit session, I do not re-assign the dataProvider. Seems to work fine. Tracy ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of jmfillman Sent: Tuesday, May 06, 2008 7:38 PM To: [email protected] Subject: [flexcoders] Re: Complex itemEditEnd processing confuses subsequent rowIndex on click Let me see if I understand this. You are saying that if you are editing selectedIndex 3, and then you click, for example, on index 4, that you are getting index 5 instead of 4, correct? Do you get the data from index 4 or 5? When you update data in the DG, don't you need to refresh the DG? --- In [email protected] <mailto:flexcoders%40yahoogroups.com> , "Tracy Spratt" <[EMAIL PROTECTED]> wrote: > > My flag solution works fine, so don't stress on this one unless you are > just interested. > > Tracy > > > > ________________________________ > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> ] On > Behalf Of Tracy Spratt > Sent: Tuesday, May 06, 2008 7:31 PM > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > Subject: [flexcoders] Complex itemEditEnd processing confuses subsequent > rowIndex on click > > > > In a component's editable Datagrid's itemEditEnd handler, I update a > data model instance, which dispatches events that invoke a ChangeWatcher > handler back in that same component. That handler assigns a new > XMLListCollection to the local var to which the editable dataGrid is > bound. The handler also sets the selectedIndex of the DG to the just > edited row. > > This all works fine if I end the editing session using Tab or Enter or > Escape, but if I click in the next row, something confuses the rowIndex > of the click, and the next row's cell is put in edit mode instead of the > one clicked. > > So far I have been unable to repro this in a test app (quit because of > time issues), but it occurs both places that I use this methodology. > > I also have found that there is some kind of event "tangle". When my > change handler is invoked and re-assigns the DG dataProvider, we are > still "within" the itemEditEnd handler, but assigning the DP causes us > to hit the itemEditend handler AGAIN, recursively. > > I am about ready to just set a flag and conditionally skip the problem > code, but any other ideas will be appreciated. I'll post some snippets > below. > > Tracy > > Tracing: > > onEditEnd() //value updated, click in 2nd row(index > 1),itemEditEnd handler called > > ..onEditEnd rowIndex=0 // > > changeProjItemData() //updates the data model > > onXmlProjItemsChange: //ChangeWatcher handler > > ..<-- here we assign the dg dataProvider --> > > onEditEnd() //UNEXPECTED call to itemEditEnd handler > > ..onEditEnd rowIndex=0 > > selectItemByIndex( 0) > > onSelectItem //called by DG change event handler, 2nd > row(index 1) clicked > > ..set _iSelectedIndex to row clicked=2 //WRONG index, clicked index "1" > > ..<-- here , the 3rd row is set to editable, not the 2nd as clicked > > Snippets: > > /**This gets fired when the itemEditor is about to be destroyed. */ > > private function onEditEnd(event:DataGridEvent):void > > { > > trace(".ProjItem.onEditEnd()") > > var sPropertyName:String = event.dataField; //get the > dataField > > var sValue:String = > TextInput(event.currentTarget.itemEditorInstance).text; //and value > > trace(".....onEditEnd rowIndex=" + event.rowIndex ) > > if (_xmlProjItem[sPropertyName] != sValue) { //if value > changed > > changeProjItemData(sPropertyName,sValue) > > event.preventDefault(); > > } > > }//onEditEnd > > > > /** Sets required save flags, updates the local value, and updates the > data model */ > > private function changeProjItemData(sPropertyName:String, > sValue:String):void > > { > > trace(".ProjItem.changeProjItemData()") > > if (sPropertyName && sValue) { > > [EMAIL PROTECTED] = "true"; //flas for > save > > _xmlProjItem[sPropertyName] = sValue; > > [EMAIL PROTECTED] = "true"; > > [EMAIL PROTECTED] = "true"; //required > for SAVE! > > [EMAIL PROTECTED] = "true"; // " > > [EMAIL PROTECTED] = "true"; > > _dsApp.xmlProjItems = _xmlProjItems; //Update the > data model. Invokes change handler > > } > > }//changeProjItemData > > /** changeWatcher handler on DSApp.xmlProjItems */ > > private function onXmlProjItemsChange( event:PropertyChangeEvent > ):void > > { > > trace("...Project.onXmlProjItemsChange:") > > var xml:XML = event.newValue as XML; > > if (xml) { > > _xmlProjItems = xml.copy(); > > _xlcProjItems = new > XMLListCollection(_xmlProjItems.children().(attribute("rowaction")! ="del > ete")); //dgProjItem dataProvider > > selectItemByIndex(_iSelectedIndex); > > } > > else { > > _xmlProjItems = <DocumentElement />; > > _xmlProjItem = null; > > _xlcProjItems = new XMLListCollection(_xmlProjItems.ProjItem); > > } > > }//onXmlProjItemsChange > > > > /** Run by change event of dgProjItem */ > > private function onSelectItem(event:Event):void > > { > > trace(".projItem.onSelectItem -- current _iSelectedIndex = " + > _iSelectedIndex) > > _xmlProjItem = XML(event.target.selectedItem); > //set local var > > _iSelectedIndex = event.target.selectedIndex; > //store index > > trace("....set _iSelectedIndex to row clicked=" + _iSelectedIndex); > > bPrevAvail = (_iSelectedIndex > 0); > //next/prev button state > > bNextAvail = (_iSelectedIndex < _xmlProjItems.children().length () - > 1); > > _dsApp.xmlProjItem = _xmlProjItem; > //set data model > > }//onSelectItem > > > > /** Selects previously stored row */ > > private function selectItemByIndex(iIndex:int):void > > { > > trace(".projItem.selectItemByIndex( " + iIndex + ")") > > _xmlProjItem = _xmlProjItems.ProjItem[iIndex]; //select the > first Item > > dgProjItems.selectedIndex = iIndex; > > _iSelectedIndex = iIndex; > > bPrevAvail = (_iSelectedIndex > 0); > > bNextAvail = (_iSelectedIndex < _xmlProjItems.children().length () - > 1); > > _dsApp.xmlProjItem = _xmlProjItem; > > }//selectItemByIndex >
