为什么每个下栽的档案or代码都回有问题

derekyks

为什么每个在网上下载的原代码运行时, 都回有问题出现类似的问题?
The Expression On Mouse Move You entered as the event property setting product the following error object or class does not support the set of even
* the xpression may not result in the name of a macro, the name of a user defined faction.
........~~~~~~

andymark

发生这种情形，多数是没有引用相应的控件，在代码窗口---工具----引用

derekyks

那我如何知道要引用哪个相应的控件?????