Post the relevant code: The DG, the DGColumns, the Renderers. A small test case if you can create one.
Do you have floating hit targets or is the mouse hitting something that isn't parented by the renderer? ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of j_lentzz Sent: Wednesday, September 19, 2007 12:09 PM To: [email protected] Subject: [flexcoders] Re: DataGrid editor/renderer MouseDownHandler error That is what I can't figure out. I don't know what I could do to make it null. I'm trying to use the ideas from your sub-object example, so I can pass in an object to the editor/renderer so it can then validate the value and set a pass/fail validation value - Ex: I 'm passing in an object to businessRiskName where value="high" and passValidation=true. So I'm trying to use the sub-objects businessRiskName.value and businessRiskName.passValidation. I've been able to get them to display properly, but when I click on the datagrid I get the error I've described. I'm wondering if I'm not getting the data from the grid/provider correctly, but don't know where to look. Any guidance would be greatly appreciated. Thanks, John --- In [email protected] <mailto:flexcoders%40yahoogroups.com> , "Alex Harui" <[EMAIL PROTECTED]> wrote: > > How did itemEditorInstance get to be null? > > > > ________________________________ > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> ] On > Behalf Of j_lentzz > Sent: Wednesday, September 19, 2007 11:23 AM > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > Subject: [flexcoders] Re: DataGrid editor/renderer MouseDownHandler > error > > > > For what it is worth, this is the error I get at runtime when I click > on the cell: > > TypeError: Error #1009: Cannot access a property or method of a null > object reference. > at > mx.controls::DataGrid/mx.controls:DataGrid::mouseDownHandler()[E:\dev\fl > ex_201_borneo\sdk\frameworks\mx\controls\DataGrid.as:4239] > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> <mailto:flexcoders%40yahoogroups.com> > , "j_lentzz" <jelentz@> wrote: > > > > I've been working on getting a datagrid to validate and I am close. > > However, whenever I click on a cell in the datagrid, I get a runtime > > error in the DataGrid.as file, because my itemEditorInstance is null. > > However, I am providing an extended TextInput to the datagrid column > > the itemEditor and the itemRenderer. I've tried setting the > > rendererIsEditor to both true and false, but nothing changes. Has > > anyone seen this? Or can tell me what I'm doing wrong? I'm trying to > > follow examples, but obviously I'm doing something wrong. > > > > Thanks, > > John > > >
