You can copy code for this handler from Listing 1 below, or download it from the Resources section at the end of this article.

您可以从下面的清单1中复制这个处理程序的代码，或者从本文结尾的参考资料部分下载。

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A private copy of all process data and control behavior defined within an event handler is provided to each instance of an event handler.

将为事件处理程序的每个实例提供该事件处理程序内定义的所有进程数据和控制行为的私有副本。

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It is a common practice to copy the values of SQLSTATE and SQLCODE into local variables in the first statement of the handler, as shown in Listing 11.

将SQLSTATE和SQLCODE的值复制到处理程序的第一个语句的本地变量中，这是一种常见的做法，如清单11所示。

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Each message Handler receives a copy of the trigger message and then.

每个MessageHandler在接收到一个触发消息副本后，将会。

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In the Form1_Load event handler method, copy and paste the following code.

在Form 1_load事件处理器方法中，复制并粘贴以下代码。

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In order to compare the before and after record images the handler must make a copy of the input record.

为了比较记录前后映像，Handlder程序必须创建一个输入记录副本。

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In order to compare the before and after record images the handler must make a copy of the input record.

为了比较记录前后映像，Handlder程序必须创建一个输入记录副本。

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