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POADO.NET Connection Problem
 

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  1. POADO.NET Connection Problem
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    <p>Hi i am getting this error while tryin to connect my web site. </p> <blockquote> <p>Unspecified error Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.</p> <p>Exception Details: System.Data.OleDb.OleDbException: Unspecified error.</p> </blockquote> <p>Maybe i am doing something wrong while opening and closing connections.I always get this error if 5-10 user enter same time to site.When a user enter site i am updating or inserting new records for statistics ?. </p> <p>// iam using db class for connect ...</p> <pre><code> public OleDbConnection baglan() { OleDbConnection baglanti = new OleDbConnection("Provider=Microsoft.Jet.OleDb.4.0;Data Source=" + Server.MapPath("~/App_Data/manisaweb.mdb")); baglanti.Open(); return (baglanti); } //******************************************************************** //Sql Sorgu Çalıştırma public int cmd(string sqlcumle) { OleDbConnection baglan = this.baglan(); OleDbCommand sorgu = new OleDbCommand(sqlcumle, baglan); int sonuc = 0; try { sonuc = sorgu.ExecuteNonQuery(); } catch (OleDbException ex) { throw new Exception(ex.Message + " (" + sqlcumle + ")"); } finally { sorgu.Connection.Close(); } return (sonuc); } //******************************************************************** //Kayıt Sayısı Bulma public string GetDataCell(string sql) { DataTable table = GetDataTable(sql); if (table.Rows.Count == 0) return null; return table.Rows[0][0].ToString(); } //Kayıt Çekme public DataRow GetDataRow(string sql) { DataTable table = GetDataTable(sql); if (table.Rows.Count == 0) return null; return table.Rows[0]; } //DataTable ye veri çekme public DataTable GetDataTable(string sql) { OleDbConnection baglan = this.baglan(); OleDbDataAdapter adapter = new OleDbDataAdapter(sql, baglan); DataTable dt = new DataTable(); try { adapter.Fill(dt); } catch (OleDbException ex) { throw new Exception(ex.Message + " (" + sql + ")"); } finally { adapter.Dispose(); baglan.Close(); } return dt; } //Datasete veri çekme public DataSet GetDataSet(string sql) { OleDbConnection baglan = this.baglan(); OleDbDataAdapter adapter = new OleDbDataAdapter(sql, baglan); DataSet ds = new DataSet(); try { adapter.Fill(ds); } catch (OleDbException ex) { throw new Exception(ex.Message + " (" + sql + ")"); } finally { ds.Dispose(); adapter.Dispose(); baglan.Close(); } return ds; } </code></pre> <p>AND For STATISTICS in main.master.cs every page_load event</p> <pre><code>public void Istatistik() { string IpAdres = Request.ServerVariables["REMOTE_ADDR"].ToString();//Ip Adresini alıyoruz. string Tarih = DateTime.Now.ToShortDateString(); lblOnlineZiyaretci.Text = Application["OnlineUsers"].ToString();//Online ziyaretçi //Ogüne Ait Hit Bilgi Güncelleme DataRow drHit = GetDataRow("Select * from SayacHit Where Tarih='" + Tarih + "'"); if (drHit == null) { //Bugüne ait kayıt yoksa bugunün ilk siftahını yap cmd("Insert into SayacHit(Tarih,Tekil,Cogul) values('" + Tarih + "',1,1)"); } else { string SayfaAdi = Page.ToString().Replace("_aspx", ".aspx").Remove(0, 4); //Sayfa adını alıyoruz. if (SayfaAdi == "default.aspx")//Güncelleme işlemini sadece anasayfadaysa yapıyoruz { //Bugüne ait kayıt varsa Çoğulu 1 artırıyoruz. cmd("Update SayacHit set Cogul=Cogul+1 Where Tarih='" + Tarih + "'"); } //Tekil artımı için önce Ip kontrolü yapıyoruz. DataRow drIpKontrol = GetDataRow("select * from SayacIp Where Ip='" + IpAdres + "'"); if (drIpKontrol == null) { //Eğer ip yoksa tekilide artırabiliriz. Ip kayıtlı ise artırma işlemi yapmıyoruz. cmd("Update SayacHit set Tekil=Tekil+1 Where Tarih='" + Tarih + "'"); } } //Giren Kişinin IP sini Kaydetme DataRow drIp = GetDataRow("Select * from SayacIp Where Ip='" + IpAdres + "'"); if (drIp == null) { cmd("Insert into SayacIp(Ip,Tarih) values('" + IpAdres + "','" + Tarih + "')"); } //Ekrana Bilgileri Yazdırabiliriz DataRow drSonuc = GetDataRow("Select * from SayacHit Where Tarih='" + Tarih + "'"); lblBugunTop.Text = drSonuc["Cogul"].ToString(); //lblBugunTekil.Text = drSonuc["Tekil"].ToString(); //Dün Bilgilerini Çekme //DataRow drDun = GetDataRow("Select * from SayacHit Where Tarih='" + DateTime.Now.AddDays(-1).ToShortDateString() + "'"); DataRow drGenel = GetDataRow("Select SUM(Tekil) as Toplam from SayacHit"); //if (drDun != null) //{ // lblDunTop.Text = drDun["Tekil"].ToString(); //} //else //{ // lblDunTop.Text = "0"; //} lblGenelTop.Text = drGenel["Toplam"].ToString(); lblIPAdresi.Text = IpAdres; } </code></pre> <p>AND Then there is 2 section in Default.aspx its loads at page load event news and articles.</p> <pre><code> db veri = new db(); rptNews.DataSource = veri.GetDataTable("select top 5 KullaniciAdiSoyadi,Ozet,Baslik,Tarih,IcerikID,Icerik from Icerik a inner join Kullanici d on a.KullaniciID=d.KullaniciID where KategoriID = 1 and Durum = 1 Order by IcerikID Desc "); rptNews.DataBind(); rptArticle.DataSource = veri.GetDataTable("select top 5 Ozet,Baslik,Tarih,IcerikID,Icerik from Icerik where KategoriID = 2 and Durum = 1 Order by IcerikID Desc "); rptArticle.DataBind(); </code></pre> <p>SO THERE IS SO MANY UPDATE , INSERT AND SELECT QUERY IN EVERY PAGE LOAD EVENT. If this is my problem there is another way of doing whole this things ?</p> <p>thanx everyone.</p>
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    1. USIbrahim AKGUN
    1. USIbrahim AKGUN
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    1. COWhat database are you using?
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    2. COiam using ms access for db
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      1. USIbrahim AKGUN
 

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