private void btn_Version_05_Click(object sender, EventArgs e)
{
frmPic m_Pic = new frmPic();
m_Pic.Text = "Fifth version – fully lazy instantiation";
m_Pic.picView.Image = Properties.Resources.Singleton_Level_05;
m_Pic.ShowDialog();
}
private void btn_Version_04_Click(object sender, EventArgs e)
{
frmPic m_Pic = new frmPic();
m_Pic.Text = "Fourth version – not quite as lazy, but thread-safe without using locks";
m_Pic.picView.Image = Properties.Resources.Singleton_Level_04;
m_Pic.ShowDialog();
}
private void btn_Version_02_Click(object sender, EventArgs e)
{
frmPic m_Pic = new frmPic();
m_Pic.Text = "Second version – simple thread safety";
m_Pic.picView.Image = Properties.Resources.Singleton_Level_02;
m_Pic.ShowDialog();
}
private void btn_Version_03_Click(object sender, EventArgs e)
{
frmPic m_Pic = new frmPic();
m_Pic.Text = "Third version – attempted thread-safety using double-check locking";
m_Pic.picView.Image = Properties.Resources.Singleton_Level_03;
m_Pic.ShowDialog();
}
private void btn_Version_01_Click(object sender, EventArgs e)
{
frmPic m_Pic = new frmPic();
m_Pic.Text = "First version – not thread-safe";
m_Pic.picView.Image = Properties.Resources.Singleton_Level_01;
m_Pic.ShowDialog();
}
