private void both_button_Click(object sender, EventArgs e)
{
LEFTpictureBox.Show();
RIGHTpictureBox.Show();
splitContainer1.Panel1Collapsed = false;
splitContainer1.Panel2Collapsed = false;
}
private void right_button_Click(object sender, EventArgs e)
{
RIGHTpictureBox.Show();
LEFTpictureBox.Hide();
splitContainer1.Panel1Collapsed = true;
}