I’ve got a class named Hasher in a namespace named Hasher. So the fully-qualified

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Asked: June 5, 20262026-06-05T16:40:25+00:00 2026-06-05T16:40:25+00:00

I’ve got a class named Hasher in a namespace named Hasher. So the fully-qualified

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I’ve got a class named Hasher in a namespace named Hasher. So the fully-qualified name would be:

Hasher.Hasher ...

I’m try to use the Hasher class in an external assembly (C#). I’ve imported the namespace into my class:

using Hasher;

But when I try to use the Hasher class the compiler will not find it.

using Hasher;

namespace Test {
  ///<summary>
  ///This is a test class for HasherTest and is intended
  ///to contain all HasherTest Unit Tests
  ///</summary>
  [TestClass()]
  public class HasherTest {

    ///<summary>
    ///A test for GenerateFromRawData with null seed
    ///</summary>
    [TestMethod()]
    [ExpectedException( typeof( ArgumentNullException ) )]
    public void GenerateFromRawDataTest_NullSeed() {
      byte[] seed = null;
      byte[] salt = null;

      seed = null;
      salt = null;

      Hasher.GenerateFromRawData( seed, salt );
    }

}

Generates:

Error   The type or namespace name 'GenerateFromRawData' does not exist in the namespace 'Hasher' (are you missing an assembly reference?)  M:\j41833b_UR403088_ReportingDotNet\ReportingDotNet\src\AG385\_UnitTest\HasherTest.cs   _UnitTest

Am I not using “using” correctly? (My primary language is VB.NET, so my C# is a bit rusty. A cursory examination of the MSDN documentation didn’t reveal anything)

EDIT: This works fine.

namespace Test {
  ///<summary>
  ///This is a test class for HasherTest and is intended
  ///to contain all HasherTest Unit Tests
  ///</summary>
  [TestClass()]
  public class HasherTest {

    ///<summary>
    ///A test for GenerateFromRawData with null seed
    ///</summary>
    [TestMethod()]
    [ExpectedException( typeof( ArgumentNullException ) )]
    public void GenerateFromRawDataTest_NullSeed() {
      byte[] seed = null;
      byte[] salt = null;

      seed = null;
      salt = null;

      Hasher.Hasher.GenerateFromRawData( seed, salt );
    }

}