So I take it that the listener would have to be an conditional "for" function? How would I assign the listener to the datagrid? Would I place it in the "datagrid" property or the "datagrid column" property?
--- In [email protected], "Dustin Mercer" <[EMAIL PROTECTED]> wrote: > > What you could do... if your myDP is an ArrayCollection or one of the > collection classes you could add a listener to the change event. That > way any time the dataProvider changes (the change event on the > Collection itself can let you know if an item was added, removed or > updated) you can recalculate the totals. That way your total will > always be in synch with your data without having to manually recalculate > the total. > > > > ________________________________ > > From: [email protected] [mailto:[EMAIL PROTECTED] On > Behalf Of s_hernandez01 > Sent: Wednesday, October 25, 2006 3:14 PM > To: [email protected] > Subject: [flexcoders] Datagrid Change Function > > > > Hey Flexers > > I created a datagrid to represent a shopping cart. Now, I'm having a > problem updating the total when the quantity is changed. Right now it > just gives the total because I have the quantity set to 1, but if the > users types in a different quantity I want it to update the total. If > anybody has any suggestions, I'd appreciate it. Below is my calculate > function and my datagrid. > > Thanks > Sal > > public function calculateTotal():void{ > var t:Number = 0; > var n:Number = 0; > for(var i:int = 0; i < myDP.length; i++){ > n += myDP[i].qty; > t += myDP[i].price * myDP[i].qty; > } > total = t; > numProducts = n; > } > > <mx:DataGrid width="100%" height="250" dataProvider="{myDP}" > textAlign="center" id="cartGrid"> > <mx:columns> > <mx:DataGridColumn id="qty" headerText="Qty" > rendererIsEditor="true" dataField="qty" > itemRenderer="mx.controls.TextInput" editorDataField="value" > width="24"/> > <mx:DataGridColumn headerText="Price" width="35" > dataField="price" labelFunction="myLabelFunction"/> > > </mx:columns> > </mx:DataGrid> > -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/flexcoders/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
