A C# class to call a method when the object goes out of scope.

PerformOnExit.cs

/// <summary>
/// Performs an action when disposed.
/// <code>
/// using (new PerformOnExit(Foo))
/// {
///     Bar();
/// }
/// </code>
/// </summary>
public sealed class PerformOnExit : IDisposable
{
    readonly Action action;

    /// <summary>
    /// Initializes a new instance of the <see cref="PerformOnExit"/> class.
    /// </summary>
    /// <param name="action">An action to invoke when this object gets disposed.</param>
    public PerformOnExit(Action action)
    {
        this.action = action;
    }

    /// <inheritdoc/>
    public void Dispose()
    {
        action();
    }
}