using System;
using System.ComponentModel;
using System.Linq.Expressions;
using System.Reflection;
class MainClass
{
static void Main()
{
MethodInfo method = typeof(string).GetMethod("StartsWith", new[] { typeof(string) });
var target = Expression.Parameter(typeof(string), "x");
var methodArg = Expression.Parameter(typeof(string), "y");
Expression[] methodArgs = new[] { methodArg };
Expression call = Expression.Call(target, method, methodArgs);
var lambdaParameters = new[] { target, methodArg };
var lambda = Expression.Lambda>(call, lambdaParameters);
var compiled = lambda.Compile();
Console.WriteLine(compiled("First", "S"));
}
}