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--- namespace_assembly_reference [2018/09/24 18:26] – wolfgangriedmann
+++ namespace_assembly_reference [2020/02/12 05:15] (current) – wolfgangriedmann
@@ Line 29: / Line 29: @@
   * have the mscorlib.dll in your references
   * either have a using System.IO at the begin of your source or use the full referenced class name
+To make it easier for people migrating from VO the development team has added a special mechanism to the X# compiler (this was available also in the Vulcan compiler): an assembly can add an attribute that lists namespaces that should be treated as "implicit". And there is a compiler option that instructs the compiler to automatically add these "implicit namespaces" as using statements to your code.
+The XPorter automatically enables this option, so you can still use classes like DbServer and DataWindow without including using statements for these classes.
+Vn2Ado also uses this mechanism. If you enable this option then you can use the Ado.. classes without extra using statement.