I come from low level languages - C++ is the highest level I program in.
Recently I came across Reflection, and I just cannot fathom how it could be used without cod
I've seen good usages with custom attributes. Such as a database framework.
[DatabaseColumn("UserID")]
[PrimaryKey]
public Int32 UserID { get; set; }
Reflection can then be used to get further information about these fields. I'm pretty sure LINQ To SQL does something similar...
Other examples include test frameworks...
[Test]
public void TestSomething()
{
Assert.AreEqual(5, 10);
}