public void CargarCombos()
{
ComisionLogic cl = new ComisionLogic();
MateriaLogic ml = new MateriaLogic();
cmbComision.DataSource = cl.GetAllCombo();
cmbComision.DisplayMember = "Descripcion";
cmbComision.ValueMember = "ID";
cmbMaterias.DataSource = ml.GetAllForCombo();
cmbMaterias.DisplayMember = "Descripcion";
cmbMaterias.ValueMember = "ID";
}