Hi All,
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.
Now everything is fine except when I scroll it vertically it throws error(
written below) . I tried to debug the application and found that in
scrollVertically() method of ListBase class there is for loop at line number
5344, here the code is like this:
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.
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::scrollVertically()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\listClasses\ListBase.as: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::scrollVertically()[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.as: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::dispatchEventFunction()
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\ScrollBar.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\ScrollBar.as:1058]
at
mx.controls.scrollClasses::ScrollBar/mx.controls.scrollClasses:ScrollBar::downArrow_buttonDownHandler()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\scrollClasses\ScrollBar.as:1160]
at
flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()
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::buttonPressed()[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]
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