1. Create a console application and add a class called LambdaExample to the console application. Add a property to this class called FavThings:

        public class LambdaExample
        {
          public string FavThings { get; set; }
        }

2. In the console application, create a List<LambdaExample> object and add a few of your favorite things to this list:

        List<LambdaExample> MyFavoriteThings = new List<LambdaExample>();
        LambdaExample thing1 = new LambdaExample();
        thing1.FavThings = "Ice-cream";
        MyFavoriteThings.Add(thing1);

        LambdaExample thing2 = new LambdaExample();
        thing2.FavThings = "Summer Rain";
        MyFavoriteThings.Add(thing2);

        LambdaExample thing3 = new LambdaExample();
        thing3.FavThings = "Sunday morning snooze";
        MyFavoriteThings.Add(thing3);

3. Then, create an expression to return only the things starting with the string "Sum". Here, we would obviously expect to see Summer Rain as a result:

        var filteredStuff = MyFavoriteThings.Where(feature =>         feature.FavThings.StartsWith("Sum"));

4. Place a breakpoint on the expression and run your application. When the code stops at the breakpoint, you can copy the lambda expression:

5. Paste the lambda expression MyFavoriteThings.Where(feature => feature.FavThings.StartsWith("Sum")) into your Watch windows and change the string in the StartsWith method from Sum to Ice. You will see that the result has changed and now displays an Ice-cream string: