.NET 4.0 Generics

Time for action – learn how to go about creating a Where() clause

Suppose there is a Student class and we want to find only those students who have enrolled for the C# course:

1. We want to find all students whose Course is C#. Write the Lambda expression for that:

   s => s.Course.Equals("C#")

2. Pass this Lambda expression to the Where() clause (sometimes, LSQO are referred to as clauses) as follows:

   Students.Where(s => s.Course.Equals("C#") );

3. Receive the result of this operation in an implicit variable, as shown next:

   var cSharpStudents = Students.Where(s => s.Course.Equals("C#") );  

What just happened?

We have a List of Student objects and we wanted to find all the students that have opted for C#. Assuming Course is a public property of the Student object, ...