打印期间出错
有三个公共变量
public var objPrintJob:FlexPrintJob;
public var objPrintTemplate:canvas;
Fn1：
objPrintJob = new FlexPrintJob();
if (objPrintJob.start() != true)
{
printCount--;
return;
}
启动PrintJob；
Fn2：
Am adding the Object and calling send for the Print
objPrintJob.addObject(objPrintTemplate, FlexPrintJobScaleType.SHOW_ALL);
objPrintJob.send();
在运行期间
抛出错误：
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at mx.printing::FlexPrintJob/addObject()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\printing\FlexPrintJob.as:252]
at org.dckap.mafcote.views.mediators::WorkAreaMediator/parseXML()[F:\MafcoteMGP\MafcoteMGP\src\org\dckap\mafcote\views\mediators\WorkAreaMediator.as:3243]
at org.dckap.mafcote.views.mediators::WorkAreaMediator/onSaveTemplateWithCredits()[F:\MafcoteMGP\MafcoteMGP\src\org\dckap\mafcote\views\mediators\WorkAreaMediator.as:2896]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\UIComponent.as:12266]
at org.dckap.mafcote.views::CreditsShowPanel/okButtonClickHandler()[F:\MafcoteMGP\MafcoteMGP\src\org\dckap\mafcote\views\CreditsShowPanel.mxml:41]
at org.dckap.mafcote.views::CreditsShowPanel/__btnOk_click()[F:\MafcoteMGP\MafcoteMGP\src\org\dckap\mafcote\views\CreditsShowPanel.mxml:159]
需要帮助......
}
There are a three public variable
public var objPrintJob:FlexPrintJob;
public var objPrintTemplate:canvas;
Fn1:
objPrintJob = new FlexPrintJob();
if (objPrintJob.start() != true)
{
printCount--;
return;
}
Starting the PrintJob;
Fn2:
Am adding the Object and calling send for the Print
objPrintJob.addObject(objPrintTemplate, FlexPrintJobScaleType.SHOW_ALL);
objPrintJob.send();
During Run
It Throws the Error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at mx.printing::FlexPrintJob/addObject()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\printing\FlexPrintJob.as:252]
at org.dckap.mafcote.views.mediators::WorkAreaMediator/parseXML()[F:\MafcoteMGP\MafcoteMGP\src\org\dckap\mafcote\views\mediators\WorkAreaMediator.as:3243]
at org.dckap.mafcote.views.mediators::WorkAreaMediator/onSaveTemplateWithCredits()[F:\MafcoteMGP\MafcoteMGP\src\org\dckap\mafcote\views\mediators\WorkAreaMediator.as:2896]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\UIComponent.as:12266]
at org.dckap.mafcote.views::CreditsShowPanel/okButtonClickHandler()[F:\MafcoteMGP\MafcoteMGP\src\org\dckap\mafcote\views\CreditsShowPanel.mxml:41]
at org.dckap.mafcote.views::CreditsShowPanel/__btnOk_click()[F:\MafcoteMGP\MafcoteMGP\src\org\dckap\mafcote\views\CreditsShowPanel.mxml:159]
Need Help For This..
}
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评论（2）
这必须是您的 objPrintTemplate 对象为 null。错误中的堆栈跟踪显示它在
FlexPrintJob/addObject()中出错，这意味着它已进入该方法，但未完成该方法的执行。由于您发送给它的唯一参数是对象引用和常量值，因此该对象必须为 null。This has to be that your objPrintTemplate object is null. The stack trace in your error shows that it's erroring in
FlexPrintJob/addObject(), which means it made it into that method but did not complete executing the method. Since the only parameters you're sending to it are your object reference and a constant value, the object must be null.在您的支持下，我找到了解决方案。
谢谢大家。
该对象似乎不为空。
我犯了一个错误，那就是我没有在其他地方添加该对象作为子对象。
所以 print 中的 addObject() 需要 systemManager。
如果我没有作为孩子添加，它将为空。
感谢您的支持
After your support I found out my solution.
Thank U all.
The object does not seems to be null.
I did one mistake that is i didn't added the object as a child anywhere else.
so the addObject() in print requires the systemManager.
which will be null if i didn't add as a child.
Thank You for your support