C#

Object test = new Object();
Object.TestMethod1()           <-- Static Method
test.TestMethod2()             <-- Instance method

public void InternetConnectionAvailable(frmMain f)
{
  // code to check for internet connection goes here
  f.Set_StatusStrip("Application Online");
}

public delegate void ConnectionChangedEventHandler(object sender, ConnectionEventArgs e);
public event ConnectionChangedEventHandler ConnectionChanged;

public class ConnectionEventArgs
{
    public ConnectionEventArgs(bool isConnected)
    {
        m_IsConnected = isConnected;
    }
    private bool m_IsConnected;
    public bool IsConnected
    {
        get { return m_IsConnected; }
    }
}

private void InternetConnectionAvailable()
{
    OnConnectionChanged(new ConnectionEventArgs(true));
}
protected virtual void OnConnectionChanged(ConnectionEventArgs e)
{
    if (ConnectionChanged != null)
    ConnectionChanged(this, e);
}

MyClassInstance.ConnectionChanged += new MyClass.ConnectionChangedEventHandler(MyClassInstance_ConnectionChanged);
void MyClassInstance_ConnectionChanged(object sender, ConnectionEventArgs e)
{
    // Set status strip
}

private void InternetConnectionUnavailable()
{
    OnConnectionChanged(new ConnectionEventArgs(false));
}

// First we set the config variables as to what the barcode variables will be
private static string ConfigBarcodePreSuffix = "@";
private static int ConfigBarcodePreSuffixTimes = 2;

// Set the form variables so we can capture whats going on
private static string Scanned_BarcodeText = ""; // Will hold the final barcode value
private static bool Scanned_BarcodeBeingScanned = false; // Will hold a bool value so we know we scanning the barcode
private static int Scanned_PreSuffixFoundTimes = 0; // How many times have we found this presuffix

private void frmEventTicketVerify_KeyPress(object sender, KeyPressEventArgs e)
{
    if (e.KeyChar.Equals(ConfigBarcodePreSuffix))
    {
        // This is the character were looking for so lets find out if its the start or end
        if (!Scanned_BarcodeBeingScanned)
        {
            // We have not started scanning the barcode so lets see if we hit it
            if (Scanned_PreSuffixFoundTimes == ConfigBarcodePreSuffixTimes)
            {
                // This is how many times they are looking for the prefix so lets start the barcode
                Scanned_BarcodeBeingScanned = true;
            }
        }
        else
        {
            // This is the ending of the barcode
            if (Scanned_PreSuffixFoundTimes == ConfigBarcodePreSuffixTimes)
            {
                // This is how many times they are looking for the prefix so lets start the barcode
                Scanned_BarcodeBeingScanned = false;
            }
        }
        // Move the prefix count up
        Scanned_PreSuffixFoundTimes++;
    }
    else
    {
        // This wasnt the key we were looking for so lets reset it
        Scanned_PreSuffixFoundTimes = 0;
    }

    if (Scanned_BarcodeBeingScanned)
    {
        // We are still inserting text from the barcode, so lets continue to add it
        Scanned_BarcodeText += e.KeyChar.ToString();
    }
    else if (!Scanned_BarcodeText.Trim().Equals(""))
    {
        // Here is the final barcode
        MessageBox.Show(Scanned_BarcodeText);
    }           
}