private void heureBtn_Click(object sender, EventArgs e)
{
cours_Ex cours_Ex = new cours_Ex();
this.Controls.Add(cours_Ex);
cours_Ex.Location = new Point(75, 0);
cours_Ex.BringToFront();
cours_Ex.Show();
}
private void heureBtn_Click(object sender, EventArgs e)
{
cours_Ex cours_Ex = new cours_Ex();
mathsForm1.ActiveForm.Controls.Add(cours_Ex);
cours_Ex.Location = new Point(50, 50);
cours_Ex.BringToFront();
cours_Ex.Show();
//heureExCtrl1.Show();
}