User Guide : Scripting : Writing Expressions : Commenting Out Code
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Commenting Out Code
If you want to comment out a block of code, do one of the following:
Type a single quote (') at the beginning of each line.
Use C-Style commenting by typing a forward slash and asterisk (/*) at the beginning and at the end of your comment, as follows:
/* If Len(Trim(FieldAt("/SOURCE/R1/Field1")))= 0 Then
"No data exists"
End if */