public int uyeSorgula(uyeler uye) { int sonuc = -1; try { Fonksiyon fnk = new Fonksiyon(); SqlConnection con = fnk.Baglan(); SqlCommand cmd = new SqlCommand(); cmd.Connection = con; cmd.CommandText = "SELECT * FROM uyeler Where kullaniciadi='" + uye.uyeisim + "' and sifre='" + uye.sifre + "'"; cmd.CommandType = CommandType.Text; SqlDataReader dr = cmd.ExecuteReader(); if(dr.Read()) { sonuc = Convert.ToInt32(dr["id"].ToString()); } } catch (Exception) { throw; } return sonuc; }