protected void Button4_Click(object sender, EventArgs e)
        {
            OleDbConnection yeni = new OleDbConnection();
            OleDbCommand eski = new OleDbCommand();
            OleDbDataReader rdr;
            yeni.ConnectionString = " Provider = Microsoft.Jet.OleDb.4.0; Data Source = " + Server.MapPath("kayit.mdb");
            yeni.Open();
            eski.Connection = yeni;
            eski.CommandText = "SELECT * from kayit";
            rdr = eski.ExecuteReader();
            string KulAd, Sifre;
            KulAd = TextBox6.Text;
            Sifre = TextBox7.Text;
            
            while (rdr.Read())
            {
                if (KulAd == Convert.ToString(rdr["KulAd"]) && Sifre == Convert.ToString (rdr["Sifre"]))
                {
                    Response.Redirect("Anasayfa.aspx");
                }
                else
                {
                    Response.Write("Hatalı Giriş");
                }
                yeni.Close();
            }
        }
    }
}
     
 
	
            
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