Parent属性是指构件的包容器，构件只能在此范围内显示和移动。Owner属性是指构件的所有者，它负责构件的创建和释放。create方法应带有表示构件所有者的参数，如在上例中，构件所有者是窗体，即self。 　　Parent属性和Owner...

文档解释ORA-25280: complete sender information not provided to non-repudiate senderCause: complete sender information not...

文档解释ORA-25270: sender info does not match with the actual sender of the messageCause: The sender info. and the message...

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在C#事件中，通常会有两个参数，分别是"object sender"和"EventArgs e"。下面是对这两个参数的详细解释：1. object sender：这个参数表示触发事件的对象，也就是发送事件的对象。通常情况下，事件是由某个对象...

文档解释ORA-25222: enqueue failed, complete sender info. not provided for a queue supporting non-repudiationCause: An...

文档解释ORA-26902: string propagation sender in the combined capture and apply mode is to be suspended while apply is...

文档解释ORA-26901: string propagation sender in the combined capture and apply mode is to be suspended while apply is...

文档解释ORA-25312: Cannot specify nonzero sender protocolCause: Sender protocol was specified during an enqueue...

文档解释ORA-25224: sender name must be specified for enqueue into secure queuesCause: An attempt was made to enqueue into a...