Hi Alex, Thanks for your response. You forced me to write a very simple example and I found the problem. My nullItemRenderer was using a spinner as the loading indicator and I was only starting the animation on the 'show' event and not 'creationComplete'. I was able to see it as my simple example just used a label that did not rely on events to initialize its state and was working fine.
I added the creationComplete handler and it is working great. Thanks for your help, Greg On Wed, Nov 12, 2008 at 8:15 PM, Alex Harui <[EMAIL PROTECTED]> wrote: > It would be more likely that the dataProvider length is still 0 until you > get your first page. If that's not the case, can you make a small example? > > > > From: [email protected] [mailto:[EMAIL PROTECTED] On > Behalf Of Greg Hess > Sent: Wednesday, November 12, 2008 2:45 PM > To: [email protected] > Subject: [flexcoders] DataGrid nullItemRenerer's do not display until > 'non-null' ItemRenderers have been used > > > > Hi All, > > I have a DataGrid that is working with a dataProvider(ArrayCollection) > with null items. The ArrayCollection represents the files in a > directory and I am performing pagination. Before I populate the > ArrayCollection with valid FileVO objects it is filled with null items > for every file in the directory. I specify the nullItemRenderer > property of the 'File Name' DataGridColumn so that a spinner animation > will display until I update the ArrayCollection as the result of a > paginated query to fetch the contents of the directory. > > When I first select a directory I never see my nullItemRenderers. It > is not until the first page loads, updates the ArrayCollection with > the first page of results and valid item renderers are created and > displayed will I see the nullItemRenderers when scrolling the rest of > the collection. It seems the nullItemRenderer is only used once the > cache of ItemRenerers is full of valid Item renderers for all the > visible rows in the DataGrid. > > How can I have the DataGrid use nullItemRenderers even before a non > null item has been rendered? > > Any help is greatly appreciated. > > Thanks, > > Greg > >
