static void Main(string[] args)
{
CollegeStudent student = new CollegeStudent("Name 1");
// v1.0
//student.ValueChanged += new ValueChangedDelegate(OnValueChanged);
//student.ValueChanged += new ValueChangedDelegate(OnValueChanged1);
// v2.0
student.ValueChanged += OnValueChanged;
student.ValueChanged += OnValueChanged1;
try
{
student.Age = 0;
}
catch (ArgumentException e)
{
Console.WriteLine(e.Message);
}
student.Age = 37;
student.Age = 40;
// v1.0
//TestWritingToAFileV1();
// v2.0
TestWritingToAFileV2();
}
private static void TestWritingToAFileV2()
{
CollegeStudent student = new CollegeStudent("Name 2");
// Prefer using "using" block for unmanaged code block which uses IDisposable interface
using (StreamWriter outputFile = File.CreateText("student.txt"))
{
student.WriteName(outputFile);
}
}
private static void TestWritingToAFileV1()
{
CollegeStudent student = new CollegeStudent("Name 2");
StreamWriter outputFile;
outputFile = File.CreateText("student.txt");
try
{
student.WriteName(outputFile);
}
finally
{
outputFile.Close();
}
}