ReferenceError: Error #1065: 变量 dataGridArray 未定义

1、错误描述

ReferenceError: Error #1065: 变量 dataGridArray 未定义。
	at global/flash.utils::getDefinitionByName()
	at mx.utils::DescribeTypeCache$/describeType()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\utils\DescribeTypeCache.as:106]
	at mx.utils::ObjectUtil$/getClassInfo()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\utils\ObjectUtil.as:932]
	at mx.controls::DataGrid/generateCols()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\controls\DataGrid.as:2753]
	at mx.controls::DataGrid/collectionChangeHandler()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\controls\DataGrid.as:4633]
	at mx.controls.listClasses::ListBase/set dataProvider()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\controls\listClasses\ListBase.as:2258]
	at mx.controls::DataGrid/set dataProvider()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\controls\DataGrid.as:1640]
	at mx.core::Container/createComponentFromDescriptor()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\Container.as:4285]
	at mx.core::Container/createComponentsFromDescriptors()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\Container.as:4160]
	at mx.core::Container/createChildren()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\Container.as:3187]
	at mx.core::UIComponent/initialize()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\UIComponent.as:7250]
	at mx.core::Container/initialize()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\Container.as:3129]
	at mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::childAdded()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\UIComponent.as:7142]
	at mx.core::UIComponent/addChildAt()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\UIComponent.as:6848]
	at spark.components::Group/addDisplayObjectToDisplayList()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\Group.as:1825]
	at spark.components::Group/http://www.adobe.com/2006/flex/mx/internal::elementAdded()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\Group.as:1416]
	at spark.components::Group/setMXMLContent()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\Group.as:512]
	at spark.components::Group/set mxmlContent()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\Group.as:452]
	at spark.components::SkinnableContainer/set mxmlContent()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:604]
	at spark.components::SkinnableContainer/createDeferredContent()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:986]
	at spark.components::SkinnableContainer/createContentIfNeeded()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:1014]
	at spark.components::SkinnableContainer/createChildren()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:827]
	at mx.core::UIComponent/initialize()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\UIComponent.as:7250]
	at componts::WinDrag/initialize()
	at mx.managers.systemClasses::ChildManager/childAdded()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\systemClasses\ChildManager.as:189]
	at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::rawChildren_addChildAt()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\SystemManager.as:1963]
	at mx.managers::SystemManager/addChildAt()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\SystemManager.as:1595]
	at mx.managers::SystemManager/addChild()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\SystemManager.as:1578]
	at mx.managers::PopUpManagerImpl/addPopUp()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\PopUpManagerImpl.as:345]
	at mx.managers::PopUpManagerImpl/createPopUp()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\PopUpManagerImpl.as:236]
	at mx.managers::PopUpManager$/createPopUp()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\PopUpManager.as:139]
	at TitleWindow/clickHandler()[D:\Adobe Flash Builder 4 Installer\TitleWindow\src\TitleWindow.mxml:18]
	at TitleWindow/___TitleWindow_Button1_click()[D:\Adobe Flash Builder 4 Installer\TitleWindow\src\TitleWindow.mxml:30]

2、错误原因

由于dataGridArray 是ArrayCollection类型，在表格中的数据绑定时，dataProvider="dataGridArray"，导致出错

3、解决办法

将dataProvider="dataGridArray"修改成dataProvider="{dataGridArray}"，注意语法