addPopUp is called the line before centerPopUp. Also, the second error is thrown after user interaction with the PopUp (not user interaction with the DataGrid though) so it's definitely been created already before the second error.
- Dan Freiman On 10/19/07, Alex Harui <[EMAIL PROTECTED]> wrote: > > Could you be centering a popup that hasn't been addPopUp'd? > > > ------------------------------ > > *From:* [email protected] [mailto:[EMAIL PROTECTED] *On > Behalf Of *Daniel Freiman > *Sent:* Friday, October 19, 2007 4:52 PM > *To:* [email protected] > *Subject:* Re: [flexcoders] DataGrid not initializing default styles > > > > 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] ups.com [mailto:[EMAIL PROTECTED] ups.com] *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\UICompon ent.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 > > > > >
