calling another function in another file?

Hello..

 i have to call another function in another file..

 Private sub OnClickSubmit(ByVal e As ... )

Add_Activity() <!---- it is on another file called Activity.ascx.vb

Get_Activity()

End Sub
 

how do we call it.. when i tried it give error message

 "Reference to a non-shared member requires an object reference"

to correct this error

1. Declare the instance as an object variable
2. reference the instance by the variable name.

 

thanks,

 
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