Exemplo n.º 1
0
        static void Main(string[] args)
        {
            //Executing a simple C# statement passed as a string.
            {
                string statement = @"System.Console.WriteLine("" Hello World!!!"")";
                var    engine    = new ScriptEngine();
                engine.Execute(statement);
            }


            //Previous example does not use any execution context. So there is no sharing of execution context when multiple statements are executed.
            //In other words, one statement does not have access to other statement(variable/functions etc).
            //To share the variable/functions etc declared in one statement , with other statements, a session is used which acts as an execution context.

            {
                var engine  = new ScriptEngine();
                var session = Session.Create();
                engine.Execute(@"var statement = ""Hello World!!!"";", session);
                engine.Execute(@"System.Console.WriteLine(statement);", session);
            }
            //Session object worsks as a container and holds the object declared. If you do not pass session object as a second parameter in the Execute(), this code will throw an exception that statement
            //does not exist in the current context.

            //Interaction with the host object -
            //Interaction with the host application means, accessing the value from hosting application which is executing the script.
            //For this, you need an host obejct which expose any thing which need to be passed to the script, by a public property/Function.

            {
                hostObj hostObj = new hostObj();
                var     engine  = new ScriptEngine(new string[] { hostObj.GetType().Assembly.Location });
                var     session = Session.Create(hostObj);
                engine.Execute(@"System.Console.WriteLine(""File name is ""+GetFileName())", session);
            }
            //In this example, script is accessing a variable calles 'FileName' from the host Application through host object.

            //Executing a Script from a file.
            {
                var engine = new ScriptEngine(new string[] { "System" });
                engine.ExecuteFile(@"Script1.csx");
            }

            Console.ReadLine();
        }
Exemplo n.º 2
0
        static void Main(string[] args)
        {
            //Executing a simple C# statement passed as a string.
            {
                string statement = @"System.Console.WriteLine("" Hello World!!!"")";
                var engine = new ScriptEngine();
                engine.Execute(statement);
            }

            //Previous example does not use any execution context. So there is no sharing of execution context when multiple statements are executed.
            //In other words, one statement does not have access to other statement(variable/functions etc).
            //To share the variable/functions etc declared in one statement , with other statements, a session is used which acts as an execution context.

            {
                var engine = new ScriptEngine();
                var session = Session.Create();
                engine.Execute(@"var statement = ""Hello World!!!"";", session);
                engine.Execute(@"System.Console.WriteLine(statement);", session);
            }
            //Session object worsks as a container and holds the object declared. If you do not pass session object as a second parameter in the Execute(), this code will throw an exception that statement
            //does not exist in the current context.

            //Interaction with the host object -
            //Interaction with the host application means, accessing the value from hosting application which is executing the script.
            //For this, you need an host obejct which expose any thing which need to be passed to the script, by a public property/Function.

            {
                hostObj hostObj = new hostObj();
                var engine = new ScriptEngine(new string[]{ hostObj.GetType().Assembly.Location });
                var session = Session.Create(hostObj);
                engine.Execute(@"System.Console.WriteLine(""File name is ""+GetFileName())",session);
            }
            //In this example, script is accessing a variable calles 'FileName' from the host Application through host object.

            //Executing a Script from a file.
            {
                var engine = new ScriptEngine(new string[] { "System" });
                engine.ExecuteFile(@"Script1.csx");
            }

            Console.ReadLine();
        }