C# dynamic creation of Assembly out of classes

Question

How can one create a .dll dynamically from code out of several classes?

Creation-example:

 var test = CodeDomProvider
   .CreateProvider("CSharp")
   .CompileAssemblyFromSource(parameters, "public class MyClass { ... }");

CompileAssemblyFromSource expects a string (representation of a class).

I do not want to provide every class which shall be in the generated assembly as a string, so I want to pass them on creation.

Example:

  public class MyClass
  {
    [DataMember(Order = 1)]
    public bool Valid{ get; set; }

    [DataMember(Order = 1)]
    public string SomeText{ get; set; }
  }

Is there something like

var test = CodeDomProvider
  .CreateProvider("CSharp")
  .CompileAssemblyFromSource(parameters, MyClass);

This link should be helpful: https://stackoverflow.com/questions/604501/generating-dll-assembly-dynamically-at-run-time — Spec, Apr 06 '18 at 09:09
This is exactly the approach I am using. The guy in the answer uses "yourCodeAsString", but this is the culprit. — Arno Nym, Apr 06 '18 at 09:12
use `File.ReadAllText` on the .cs file that contains the class definition? — Cee McSharpface, Apr 06 '18 at 09:15
Does not work for some reason, I tried it and the assembly will not be created this way. — Arno Nym, Apr 06 '18 at 09:31

score 0 · Accepted Answer · answered Apr 09 '18 at 07:24

Solution:

add "ReferencedAssemblies" to the parameters passed as first argument to CompileAssemblyFromSource.

var parameters = new CompilerParameters
      {
        GenerateExecutable = false,
        OutputAssembly = MY_ASSEMBLY,
        ReferencedAssemblies = {"System.Core.dll", "System.ServiceModel.dll"}
      };

C# dynamic creation of Assembly out of classes

1 Answers1