Try / Catch Basic : A try block with a StreamReader statement that opens a data file called data.txt and writes a string from the file. Following the try block is a catch block that catches any exception that results from the try block.

Try Catch Basic

// This will throw a 'System.IO.FileNotFoundException'
public class ProcessFile
{
    public static void Main()
    {
        try
        {
            StreamReader sr = File.OpenText("data.txt");
            Console.WriteLine("The first line of this file is {0}", sr.ReadLine());
	    sr.Close();
        }
        catch (Exception e)
        {
            Console.WriteLine("An error occurred: '{0}'", e);
        }
    }

}