private void button1_Click(object sender, EventArgs e)
{
Form20 f20 = new Form20();
f20.Show();
this.Hide();
}
private void label3_Click(object sender, EventArgs e)
{
//If there is no Form 20 instance
if (f20 == null)
{
//Instantiate Form 20
f20 = new Form20();
}
//Show the new Form 20 instance
f20.Show();
//Set Form 20's Form 6 variable as this instance
f20.f6 = this;
//Set Form 20's Form 7 variable as null
f20.f7 = null;
//Hide this form
this.Hide();
}
private void заказыПокупателяToolStripMenuItem1_Click(object sender, EventArgs e)
{
Form f10 = new Form20();
f10.Show();
}