using System;
public class Example
{
public static void Main()
{
string[] values = { "True", "False", "true", "false", " true ", "0", "1", "-1", "string" };
foreach (var value in values) {
try {
bool flag = Boolean.Parse(value);
Console.WriteLine("'{0}' --> {1}", value, flag);
}
catch (ArgumentException) {
Console.WriteLine("Cannot parse a null string.");
}
catch (FormatException) {
Console.WriteLine("Cannot parse '{0}'.", value);
}
}
}
}