private bool IsDuplicateUser(string userName) { var listUser = uBUS.LoadUsers(); int number = listUser.Where(x => x.UserName == userName).Count(); if (number > 0) { return(true); } return(false); }
public void LoadUser() { List <User> list = UsersBUS.LoadUsers(); int val = cbSearch.SelectedIndex; string search = txtSearch.Text; switch (val) { case 1: list = list.Where(x => match(x.ID.ToString(), search)).ToList(); break; case 2: list = list.Where(x => match(x.TaiKhoan, search)).ToList(); break; } tblUser.DataSource = list; }