private void button1_Click(object sender, EventArgs e)
{
var d1 = new Dialog1();
d1.ShowDialog(this);
label2.Text = "Dialog1 popped up.";
}
private void button4_Click(object sender, EventArgs e)
{
var d1 = new Dialog1();
d1.ShowDialog(this);
d1.ShowDialog(this);
var d2 = new Dialog2();
d2.ShowDialog(this);
MessageBox.Show("Clicked button 4 1st.", "", MessageBoxButtons.OKCancel);
MessageBox.Show("Clicked button 4 2nd.", "", MessageBoxButtons.OKCancel);
label5.Text = "Onz";
}