private void GetQuestion_Load(object sender, EventArgs e)
{
CatalogueBL CatBL = new CatalogueBL();
List<DO.Catalogue> CatList;
CatList = CatBL.GetCatalogue();
if (CatList != null)
for (int i = 0; i < CatList.Count; i++)
{
this.cmb_Catalogue.Items.Add(CatList.ElementAt(i).NameCatalogue);
}
}