public void InitGridNguoiDung() { // tạo các cột dtgrNguoiDung.Columns.Clear(); DataGridViewColumn col00 = new DataGridViewTextBoxColumn(); col00.Name = "id"; col00.HeaderText = "id"; col00.Width = 50; dtgrNguoiDung.Columns.Add(col00); DataGridViewColumn col0 = new DataGridViewTextBoxColumn(); col0.Name = "tentk"; col0.HeaderText = "Tên Tài khoản"; col0.Width = 300; dtgrNguoiDung.Columns.Add(col0); DataGridViewColumn col1 = new DataGridViewTextBoxColumn(); col1.Name = "hoten"; col1.HeaderText = "Họ Tên"; col1.Width = 300; dtgrNguoiDung.Columns.Add(col1); DataGridViewColumn col2 = new DataGridViewTextBoxColumn(); col2.Name = "email"; col2.HeaderText = "Email"; col2.Width = 300; dtgrNguoiDung.Columns.Add(col2); DataGridViewColumn col3 = new DataGridViewTextBoxColumn(); col3.Name = "ngaysinh"; col3.HeaderText = "Ngày Sinh"; col3.Width = 250; dtgrNguoiDung.Columns.Add(col3); // DataTable dt = new DataTable(); dt = b_user.Call_Select_user(); for (int i = 0; i < dt.Rows.Count; i++) { string id = dt.Rows[i]["f_ID"].ToString(); string tentk = dt.Rows[i]["f_Username"].ToString(); string hoten = dt.Rows[i]["f_Name"].ToString(); string email = dt.Rows[i]["f_Email"].ToString(); string ngaysinh = dt.Rows[i]["f_DOB"].ToString(); dtgrNguoiDung.Rows.Add(id, tentk, hoten, email, ngaysinh); } // }