private void button_Addition_Click(object sender, EventArgs e)
{
Form_Addition Addition = new Form_Addition();
Addition.ShowDialog();
}
private void Btn1_PMA_Click(object sender, EventArgs e)
{
//this.Hide();
Btn1_PMA.Enabled = false;
Form_Perception_et_memoire_associative Exo_Perception1 = new Form_Perception_et_memoire_associative(); Form_Addition Addition = new Form_Addition();
Exo_Perception1.ShowDialog();
}