How to differentiate between two assemblies in a Razor view?

Question

I have an extension method:

.ToDescription()

This method exists in a MyExtensions class in the My.Methods namespace, in an assembly named MyAssembly1. I also have other extension methods in a MyExtensions class in the My.Methods namespace, but in a different assembly named MyAssembly2.

Both of these assemblies are referenced in my project. MyAssembly2.My.Methods.MyExtensions contains no .ToDescription() method.

I wish to use the .ToDescription() extension method in a Razor view, but I'm getting an ambiguous reference error:

The type 'MyExtensions' exists in both 'MyAssembly1' and 'MyAssembly2'

Is there a way to tell a Razor view which assembly to use, when both the namespaces and the classes are the same?

Note: I did attempt some research on this, but due to the complex nature of the question, no usable results were returned.

Answer 1

I tried to reproduce your issue,it's ok in .net 8(what's your .net version?),you could try update the .net version.

A workaround for you to fix Error CS0433 in Razor View:

In project file:

<ItemGroup>
    <ProjectReference Include="..\ClassLibrary1\ClassLibrary1.csproj" >
      <Aliases>CustomTypes</Aliases>
    </ProjectReference>
    <ProjectReference Include="..\ClassLibrary2\ClassLibrary2.csproj" />
  </ItemGroup>

In program.cs:

extern alias CustomTypes;
global using _MyExtension = CustomTypes::My.Methods;

In your razor view:

@using _MyExtension

Here's the document related Error CS0433,hopes help