Nope, it's just a plain DataGrid. All I touched was percentWidth/Height, minColumnWidth, draggable/resizableColumns and dataProvider. It's in the same popup as my earlier layout bug (Nested containers inside a PopUp.) Although I haven't been able to recreate in a contained example yet.
- Dan Freiman On 10/19/07, Alex Harui <[EMAIL PROTECTED]> wrote: > > Did you subclass DG? Alter its styles? > > > ------------------------------ > > *From:* [email protected] [mailto:[EMAIL PROTECTED] *On > Behalf Of *Daniel Freiman > *Sent:* Friday, October 19, 2007 2:37 PM > *To:* flexcoders > *Subject:* [flexcoders] DataGrid not initializing default styles > > > > I'm getting a situation where a Datagrid is not initializing it's default > styles and is causing runtime errors when datagrid functions try to retrieve > and operate on styles that are null. I'm getting two errors which I'm > hoping will look familiar to someone: > > The first one occurs when the PopUpManager is validating a new popup > container of which the datagrid is a descendant: > > TypeError: Error #1009: Cannot access a property or method of a null > object reference. > at mx.controls::DataGrid/mx.controls:DataGrid::drawHeaderBackground > ()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:2573] > at > mx.controls::DataGrid/mx.controls:DataGrid::updateDisplayList()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:1257] > > at mx.core::UIComponent/validateDisplayList > ()[C:\dev\flex_201_gmc\sdk\frameworks\mx\core\UIComponent.as:5760] > at > mx.managers::LayoutManager/validateClient()[C:\dev\flex_201_gmc\sdk\frameworks\mx\managers\LayoutManager.as:858] > > at mx.core::UIComponent/validateNow > ()[C:\dev\flex_201_gmc\sdk\frameworks\mx\core\UIComponent.as:5218] > at > mx.managers::PopUpManagerImpl/centerPopUp()[C:\dev\flex_201_gmc\sdk\frameworks\mx\managers\PopUpManagerImpl.as:336] > > at mx.managers::PopUpManager$/centerPopUp > ()[C:\dev\flex_201_gmc\sdk\frameworks\mx\managers\PopUpManager.as:163] > at com.colorquick.improv.managers::PaneManager$/openPane()[C:\Documents > and Settings\Daniel\My Documents\Flex Builder > 2\Improv2\com\colorquick\improv\managers\PaneManager.as:98] > at > com.colorquick.improv.toolbars.controls::DAMBrowseLists/com.colorquick.improv.toolbars.controls:DAMBrowseLists::clickHandler()[C:\Documents > and Settings\Daniel\My Documents\Flex Builder > 2\Improv2\com\colorquick\improv\toolbars\controls\DAMBrowseLists.as:24] > > If I workaround this error, the second one gets thrown after the > dataprovider and columns properties are updated: > > TypeError: Error #1007: Instantiation attempted on a non-constructor. > at > mx.controls::DataGrid/mx.controls:DataGrid::drawSeparators()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:2896] > at mx.controls::DataGrid/mx.controls:DataGrid::updateDisplayList > ()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:1269] > at > mx.core::ScrollControlBase/mx.core:ScrollControlBase::setScrollBarProperties()[C:\dev\flex_201_gmc\sdk\frameworks\mx\core\ScrollControlBase.as:1084] > at mx.controls::DataGrid/mx.controls:DataGrid::configureScrollBars > ()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:1791] > at > mx.controls.listClasses::ListBase/mx.controls.listClasses:ListBase::updateDisplayList > ()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\listClasses\ListBase.as:2972] > at > mx.controls::DataGrid/mx.controls:DataGrid::updateDisplayList()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:1208] > at mx.core::UIComponent/validateDisplayList > ()[C:\dev\flex_201_gmc\sdk\frameworks\mx\core\UIComponent.as:5760] > at > mx.managers::LayoutManager/mx.managers:LayoutManager::validateDisplayList()[C:\dev\flex_201_gmc\sdk\frameworks\mx\managers\LayoutManager.as:600] > at > mx.managers::LayoutManager/mx.managers:LayoutManager::doPhasedInstantiation()[C:\dev\flex_201_gmc\sdk\frameworks\mx\managers\LayoutManager.as:673] > > at Function/http://adobe.com/AS3/2006/builtin::apply() > at mx.core::UIComponent/mx.core:UIComponent::callLaterDispatcher2 > ()[C:\dev\flex_201_gmc\sdk\frameworks\mx\core\UIComponent.as:7909] > at > mx.core::UIComponent/mx.core:UIComponent::callLaterDispatcher()[C:\dev\flex_201_gmc\sdk\frameworks\mx\core\UICompon > ent.as:7852] > > - Dan Freiman > > >
