private void buttonInicializaSandBox_Click(object sender, EventArgs e)
        {
            ConfirmarInicializacion confirmarMsg = new ConfirmarInicializacion("¿Confirma que quiere inicializar el SandBox?");

            confirmarMsg.StartPosition = FormStartPosition.CenterParent;
            confirmarMsg.ShowDialog();
            if (confirmarMsg.Respuesta)
            {
                if (cuestionario != null)
                {
                    cuestionario.Close();
                    cuestionario             = new Cuestionario();
                    cuestionario.FormClosed += Cuestionario_FormClosed;
                    cuestionario.Show();
                }
                if (conceptos != null)
                {
                    conceptos.Close();
                    conceptos = new Conceptos();
                    conceptos.conceptosDBModificada += Conceptos_conceptosDBModificada;
                    conceptos.FormClosed            += Conceptos_FormClosed;
                    conceptos.Show();
                }
                SandBoxDB.SandBoxEntities ctx = new SandBoxDB.SandBoxEntities();
                ctx.InicializaSandBox();
                ctx.Dispose();
            }
        }
 private void buttonConceptos_Click(object sender, EventArgs e)
 {
     if (conceptos != null)
     {
         conceptos.Show();
     }
     else
     {
         conceptos = new Conceptos();
         conceptos.conceptosDBModificada += Conceptos_conceptosDBModificada;
         conceptos.FormClosed            += Conceptos_FormClosed;
         conceptos.Show();
     }
     conceptos.BringToFront();
 }
 private void Cuestionario_FormClosed(object sender, FormClosedEventArgs e)
 {
     conceptos = null;
 }
 private void Conceptos_FormClosed(object sender, FormClosedEventArgs e)
 {
     conceptos = null;
 }