private void pictureBox3_Click(object sender, EventArgs e)
{
ChangeModeForm pr = new ChangeModeForm();
if (pr == null)
{
pr.Parent = this;
}
pr.Show();
this.Hide();
}
private void button1_Click(object sender, EventArgs e)
{
ChangeModeForm ch = new ChangeModeForm();
if (ch == null)
{
ch.Parent = this;
}
this.Hide();
ch.Show();
}