How to create IronPython objects of types defined in C#
The DLR Hosting API lets the hosted script instantiate objects of types defined in the hosting C# / VB module. This post describes how to do that using the appropriate methods from the API. Here are the simple steps -
1) Load the assembly containing the type in to the ScriptRuntime object
ScriptRuntime runtime = ScriptRuntime.Create();
runtime.LoadAssembly( Assembly.GetAssembly( typeof( n1.MyType1)));
2) Import the namespace/type inside the script
from n1 import *
3) Create an object of the type and invoke members
n=MyType1()
print n.Name
Here’s the full sample
using System.Scripting;
using Microsoft.Scripting.Hosting;
using System.Reflection;
namespace n1 {
public class MyType1 {
public string Name { get; set; }
public MyType1() {
Name = "MyType1";
}
}
}
public class Program {
static void Main(string[] args) {
string code = @"from n1 import *
n=MyType1()
print n.Name";
ScriptRuntime runtime = ScriptRuntime.Create();
runtime.LoadAssembly( Assembly.GetAssembly( typeof( n1.MyType1)));
ScriptEngine eng = runtime.GetEngine("py");
ScriptScope scope = eng.GetEngine("py").CreateScope();
ScriptSource src = eng.CreateScriptSourceFromString( code, SourceCodeKind.Statements);
src.Execute(scope);
}
}
