public static ui_login GetInstance()
{
if (instance == null)
{
instance = new ui_login();
}
return(instance);
}
private void ui_login_FormClosing(object sender, FormClosingEventArgs e)
{
try
{
chat_client.Stop();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
finally
{
instance = null;
System.Environment.Exit(0);
}
}