private void btnTestEF_Click(object sender, EventArgs e) { alextradeEntities db = new alextradeEntities(); string UserName = Environment.UserName; Users U; try { var exp = from User in db.Users where User.LoginName == UserName select User; if (exp.Count() > 0) { U = exp.FirstOrDefault(); } else { U = null; } } catch (Exception Ex) { MessageBox.Show(Ex.Message); } }
public CDatabase() { db = new alextradeEntities(); IdUser = -1; }