Hey Guys, I have had a similar problem. Check out message post 60726
Michael Ramirez --- In [email protected], "Ciarán" <[EMAIL PROTECTED]> wrote: > > Hi, > > > I am facing a weird problem with datagrid. I have added a custom > > itemrenderer in my datatgrid which draws a bullet graph in one of > > the columns. > > It sounds like a problem with your itemRenderer. > > > for (i = lockedRowCount; i < rowCount; i++) > > { > > > > numCols = listItems[i].length; > > var bVisible:Boolean = false; > > ... > > ... > > > Now this code should run till "i" is less than rowCount, but I observed that > > if rowCount = 15 and listItems.length = 14 then after "i" executes the code for > > 14 it increments and also executes for 15. > > listItems.length does nothing to determine the length of the loop. The > condition is i < rowCount, so if rowCount = 15, and listItems.length = > 14, that makes perfect sense. The loop will run from lockedRowCount to > 15 (counting from 0 to < 15 yeilds 14 = listItems.length). > > lockedRowCount is "The index of the first row in the control that scrolls". > > listItems is a collection of itemRenderers (one for each row in each > column of your DataGrid) > > Can you post a code example (it would help to see the itemRenderer and > the Data Grid declaration. > > Best Regards, > Ciarán > > > I am not getting the cause for this behaviour, is it a bug in flex. > > > > > > Error: > > TypeError: Error #1010: A term is undefined and has no properties. > > at mx.controls.listClasses::ListBase/mx.controls.listClasses:ListBase::sc rollVertically() [C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\listClasses\ListBase.a s:5346] > > at mx.controls::DataGrid/mx.controls:DataGrid::scrollVertically() [C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:1923] > > at com.flex.MyDataGrid::myDataGrid/com.flex.MyDataGrid:myDataGrid::scroll Vertically()[C:\Documents and Settings\someone\My Documents\Flex Builder 2\SampleWidget\com\flex\MyDataGrid\myDataGrid.as:24] > > at mx.controls.listClasses::ListBase/set verticalScrollPosition() [C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\listClasses\ListBase.a s:1043] > > at mx.controls::DataGrid/mx.controls:DataGrid::scrollHandler() [C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\DataGrid.as:1720] > > at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEv entFunction() > > at flash.events::EventDispatcher/dispatchEvent() > > at mx.core::UIComponent/dispatchEvent() [C:\dev\flex_201_gmc\sdk\frameworks\mx\core\UIComponent.as:8323] > > at mx.controls.scrollClasses::ScrollBar/http://www.adobe.com/2006/flex/mx /internal::dispatchScrollEvent() [C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\scrollClasses\ScrollBa r.as:1096] > > at mx.controls.scrollClasses::ScrollBar/http://www.adobe.com/2006/flex/mx /internal::lineScroll() [C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\scrollClasses\ScrollBa r.as:1058] > > at mx.controls.scrollClasses::ScrollBar/mx.controls.scrollClasses:ScrollB ar::downArrow_buttonDownHandler() [C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\scrollClasses\ScrollBa r.as:1160] > > at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEv entFunction() > > at flash.events::EventDispatcher/dispatchEvent() > > at mx.core::UIComponent/dispatchEvent() [C:\dev\flex_201_gmc\sdk\frameworks\mx\core\UIComponent.as:8323] > > at mx.controls::Button/http://www.adobe.com/2006/flex/mx/internal::button Pressed() [C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\Button.as:1988] > > at mx.controls::Button/mx.controls:Button::mouseDownHandler() [C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\Button.as:2234] > > > > ________________________________ > Want to start your own business? Learn how on Yahoo! Small Business. >
