//Add new child for current form (maximum 9 children)
 private void bntNew_Click(object sender, EventArgs e)
 {
     //TODO: get ID of new child form
     createNew_form = new CreateNew_form();
     createNew_form.eBtnOK_Click += new EventHandler <MyEventArgs>(eCreateNew_BtnOK_Click);
     createNew_form.Show();
 }
 private void btnNew_Click(object sender, EventArgs e)
 {
     createNew_form = new CreateNew_form();
     //Subcribe event from CreateNew_form
     createNew_form.eBtnOK_Click += new EventHandler <MyEventArgs>(eCreateNew_BtnOK_Click);
     createNew_form.Show();
 }//End btnNew_Click()