How Do I Handle Multiple DLLs with the Same Namespace?

Referencing Multiple DLLs with the Same Namespace

In development scenarios, it is possible to encounter a situation where two DLLs share the same namespace but contain distinct methods and types. Resolving this can be straightforward.

Referencing Both DLLs

Simply reference both DLLs in your project using the appropriate referencing method (e.g., Add Reference in Visual Studio). As namespaces are not isolated to individual assemblies, both DLLs can share the same namespace without conflicts.

Using Methods and Types

As namespaces are simply a way to group related types, you can utilize methods and types from both DLLs without any special handling. The .NET Framework distinguishes between fully qualified names, which include the namespace and type name prefix. Therefore, even if multiple types from different DLLs share the same name, they can be uniquely identified.

Resolving Namespace Overloads

In rare cases, two assemblies may have identical namespace and type names (e.g., different versions of the same DLL). To resolve this, you can use an alias to specify which assembly to use for a particular type. When referencing an assembly using a compiler switch or Visual Studio's properties box, provide a custom alias. Within your code file, add an extern alias clause to distinguish between the two assemblies, using ( MyNamespace.Type to access types from the desired assembly.

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