Statement cannot appear within a method body. End of method assumed

Today when I was developing web pages using asp.net,I encountered a problem as below:

Server Error in '/BC30289' Application.

 

Compilation Error Description:

An error occurred during the compilation of a resource required to service  this request. Please review the following specific error details and modify your  source code appropriately.

Compiler Error Message: 

BC30289:  Statement cannot appear within a method body. End of method assumed.

Error Line: Sub showImage(Byval id as string)

I replaced "<% %>" with

<script language="vbscript" runat="server"></script>

And then everything works fine.

That is because we cannot define asp 'sub' or 'function' between the body tag

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Happy Programming