Using javascript for custom purposes

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This shows the two-way interaction between Javascript and c#.

  1. Javascript calls a c# method
  2. C# gets the result of an expression in Javascript

–

Type scriptType = Type.GetTypeFromCLSID(Guid.Parse("0E59F1D5-1FBE-11D0-8FF2-00A0D10038BC"));

dynamic obj = Activator.CreateInstance(scriptType, false);
obj.Language = "javascript";
obj.AddObject("MyClass",new JSAccessibleClass());

obj.Eval("MyClass.MsgBox('Hello World')"); //<--1
var result = obj.Eval("3+5"); //<--2


[ComVisible(true)]
public class JSAccessibleClass
{
    public void MsgBox(string s)
    {
        MessageBox.Show(s);
    }
}

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