/// <summary>
/// Exception Filter Usage
/// </summary>
private void ExceptionFilterUsage()
{
Console.WriteLine("=> Exception Filter Usage: ");
MultiExceptionCar myCar = new MultiExceptionCar("Rusty", 90);
myCar.CrankTunes(true);
try
{
// Trip Arg out of range exception.
myCar.Accelerate(90);
}
catch (SerializedCarIsDeadException e) when(e.ErrorTimeStamp.DayOfWeek != DayOfWeek.Friday)
{
// This new line will only print if the when clause eveluates to true
Console.WriteLine("Catching car is dead");
Console.WriteLine(e.Message);
}
catch (ArgumentOutOfRangeException e)
{
Console.WriteLine(e.Message);
}
catch
{
throw;
}
Console.WriteLine();
}
/// <summary>
/// Multi Exception Handling Usage
/// </summary>
private void MultiExceptionHandlingUsage()
{
Console.WriteLine("=> Multi Exception Handling Usage: ");
MultiExceptionCar myCar = new MultiExceptionCar("Rusty", 90);
try
{
// Trip Arg out of range exception.
myCar.Accelerate(-10);
}
catch (SerializedCarIsDeadException e)
{
Console.WriteLine(e.Message);
}
catch (ArgumentOutOfRangeException e)
{
Console.WriteLine(e.Message);
}
catch
{
throw;
}
Console.WriteLine();
}
/// <summary>
/// Finally Block Usage
/// </summary>
private void FinallyBlockUsage()
{
Console.WriteLine("=> Finally Block Usage: ");
MultiExceptionCar myCar = new MultiExceptionCar("Rusty", 90);
myCar.CrankTunes(true);
try
{
// Trip Arg out of range exception.
myCar.Accelerate(-10);
}
catch (SerializedCarIsDeadException e)
{
Console.WriteLine(e.Message);
}
catch (ArgumentOutOfRangeException e)
{
Console.WriteLine(e.Message);
}
catch
{
throw;
}
finally
{
// This will always occur.
// Whether Exception occurs or not.
myCar.CrankTunes(false);
}
Console.WriteLine();
}
/// <summary>
/// General Catch Usage
/// </summary>
private void GeneralCatchStatementsUsage()
{
Console.WriteLine("=> General Catch Usage: ");
MultiExceptionCar myCar = new MultiExceptionCar("Rusty", 90);
try
{
// Trip Arg out of range exception.
myCar.Accelerate(-10);
}
catch (SerializedCarIsDeadException e)
{
Console.WriteLine(e.Message);
}
Console.WriteLine();
}
/// <summary>
/// Inner Exception Usage
/// </summary>
private void InnerExceptionUsage()
{
Console.WriteLine("=> Inner Exception Usage: ");
MultiExceptionCar myCar = new MultiExceptionCar("Rusty", 90);
try
{
myCar.Accelerate(90);
}
catch (SerializedCarIsDeadException e)
{
try
{
FileStream fs = File
.OpenWrite(@"D:\workspace\github\cn.org.aris\csharp\study\ProCSharp\CSharpConstructsPartOne\chap7\multiexceptionhandling\carErrors.txt");
byte[] buffer = Encoding.UTF8.GetBytes(e.Message);
fs.Write(buffer, 0, buffer.Length);
fs.Close();
}
catch (Exception e2)
{
// Throw an exception that records the new exception,
// as well as the message of the first exception.
throw new SerializedCarIsDeadException(e.Message, e2);
}
}
catch (ArgumentOutOfRangeException e)
{
Console.WriteLine(e.Message);
}
catch
{
throw;
}
Console.WriteLine();
}