Asp.Net datacontext sorunum

Merhaba arkadaşlar,
.net'te yazmakta olduğum bir projede şu şekilde hata alıyorum. Dbml dosyası data İlgili sayfaların kodlarını da aşağıda paylaşıyorum. Yardımlarınızı esirgemeyin lütfen. :)
Alınan Hata:
Derleme Hatası

Açıklama: Bu isteği yerine getirmek için gereken kaynak derlenirken bir hata oluştu. Lütfen aşağıdaki özel hata ayrıntılarını gözden geçirin ve kaynak kodunuzu uygun biçimde değiştirin.

Derleyici Hata İletisi: CS0246: 'enesDataContext' tür veya ad alanı adı bulunamadı (bir using yönergeniz veya derleme başvurunuz mu eksik?)

Kaynak Hatası:

Satır 26: protected void btnKaydet_Click(object sender, EventArgs e)
Satır 27: {
Satır 28: using (enesDataContext enes=new enesDataContext())
Satır 29:
Satır 30: {

Kaynak Dosya: c:\inetpub\wwwroot\RandevuTakip\RandevuTakip\HastaKayit.aspx.cs Satır: 28

enes.designer.cs sayfasının kodları:
#pragma warning disable 1591
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:4.0.30319.18408
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

namespace RandevuTakip
{
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.Linq;
using System.Data.Linq.Mapping;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;

public partial class enesDataContext : System.Data.Linq.DataContext
{

private static System.Data.Linq.Mapping.MappingSource mappingSource = new AttributeMappingSource();

#region Extensibility Method Definitions
partial void OnCreated();
#endregion

public enesDataContext(string connection) :
base(connection, mappingSource)
{
OnCreated();
}

public enesDataContext(System.Data.IDbConnection connection) :
base(connection, mappingSource)
{
OnCreated();
}

public enesDataContext(string connection, System.Data.Linq.Mapping.MappingSource mappingSource) :
base(connection, mappingSource)
{
OnCreated();
}

public enesDataContext(System.Data.IDbConnection connection, System.Data.Linq.Mapping.MappingSource mappingSource) :
base(connection, mappingSource)
{
OnCreated();
}
}
}
#pragma warning restore 1591

HastaKayit.aspx.cs sayfasının kodları :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.Linq.SqlClient;
using System.Data.SqlClient;
using System.Data.Linq;

namespace RandevuTakip
{
public partial class HastaKayit : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)// eğer sayfa postback edilmemiş yani önceden yüklenmemişse aşağıdaki işlemleri yapacak.
{
ASPxGridView2.FocusedRowIndex = -1;// gridde kayıt seçili gelmesin.
dteDogumTarihi.Date = DateTime.Now;// tarih otomatik olarak bugün gelsin.
dteKayitTarihi.Date = DateTime.Now;
}

}

protected void btnKaydet_Click(object sender, EventArgs e)
{
using (enesDataContext enes=new enesDataContext())

{
if (lblID.Text == "")
{

try
{
tblMusteri musteri = new tblMusteri
{

Adres = txtAdres.Text,
AdSoyad = txtAdSoyad.Text,
Boy = txtBoy.Text,
Meslek = txtMeslek.Text,
Cinsiyeti = ddlCinsiyet.SelectedValue,
DogumTarihi = dteDogumTarihi.Date,
Eposta = txtEposta.Text,
Gsm = txtGSM.Text,
KanGrubu = ddlKanGrubu.SelectedValue,
KayitTarihi = dteKayitTarihi.Date,
Kilo = txtKilo.Text,
MedeniHal = ddlMedeniHal.SelectedValue,
Notu = txtNot.Text,
Referans = txtReferans.Text,
TcNo = txtTC.Text,
Tel1 = txtTel1.Text,
Tel2 = txtTel2.Text

};

string text = txtGSM.Text;
char[] arr = new char[] { '0', ',', ' ' };
text = text.TrimStart(arr);

dc.tblMusteri.InsertOnSubmit(musteri);
dc.SubmitChanges();
Temizle();
Yardimci.Alert.Show("Kayıt Eklendi.");
ASPxGridView2.FocusedRowIndex = -1;
}
catch
{
Yardimci.Alert.Show("Kayıt Eklenirken hata oluştu. Lütfen daha sonra tekrar deneyiniz. Sorun devam ederse proram satıcınızla görünüşünüz.");
}
}
else
{

try
{
tblMusteri hk = dc.tblMusteris.FirstOrDefault(k => k.ID == int.Parse(lblID.Text));

hk.Adres = txtAdres.Text;
hk.AdSoyad = txtAdSoyad.Text;
hk.Boy = txtBoy.Text;
hk.Meslek = txtMeslek.Text;
hk.Cinsiyeti = ddlCinsiyet.SelectedValue;
hk.DogumTarihi = dteDogumTarihi.Date;
hk.Eposta = txtEposta.Text;
hk.Gsm = txtGSM.Text;
hk.KanGrubu = ddlKanGrubu.SelectedValue;
hk.KayitTarihi = dteKayitTarihi.Date;
hk.Kilo = txtKilo.Text;
hk.MedeniHal = ddlMedeniHal.SelectedValue;
hk.Notu = txtNot.Text;
hk.Referans = txtReferans.Text;
hk.TcNo = txtTC.Text;
hk.Tel1 = txtTel1.Text;
hk.Tel2 = txtTel2.Text;
dc.SubmitChanges();
Temizle();
Yardimci.Alert.Show("Kayıt Güncellendi.");
ASPxGridView2.FocusedRowIndex = -1;
}
catch
{
Yardimci.Alert.Show("Kayıt Güncellenirken hata oluştu. Lütfen daha sonra tekrar deneyiniz. Sorun devam ederse program satıcınızla görünüşünüz.");
}

}
}
}
protected void ASPxGridView1_FocusedRowChanged(object sender, EventArgs e)
{
if (ASPxGridView2.FocusedRowIndex != -1)
{
lblID.Text = ASPxGridView2.GetRowValues(ASPxGridView2.FocusedRowIndex, "ID").ToString();
try
{
using (connection dc = new connection())
{
tblMusteri hk = dc.tblMusteri.FirstOrDefault(k => k.ID == int.Parse(lblID.Text));
txtAdres.Text = hk.Adres;
txtAdSoyad.Text = hk.AdSoyad;
txtBoy.Text = hk.Boy;
txtMeslek.Text = hk.Meslek;
ddlCinsiyet.SelectedValue = hk.Cinsiyeti;
dteDogumTarihi.Date = Convert.ToDateTime(hk.DogumTarihi);
txtEposta.Text = hk.Eposta;
txtGSM.Text = hk.Gsm;
ddlKanGrubu.SelectedValue = hk.KanGrubu;
dteKayitTarihi.Date = Convert.ToDateTime(hk.KayitTarihi);
txtKilo.Text = hk.Kilo;
int yil = DateTime.Today.Year - hk.DogumTarihi.Value.Year;
txtYas.Text = yil.ToString();
ddlMedeniHal.SelectedValue = hk.MedeniHal;
txtNot.Text = hk.Notu;
txtReferans.Text = hk.Referans;
txtTC.Text = hk.TcNo;
txtTel1.Text = hk.Tel1;
txtTel2.Text = hk.Tel2;
}
}
catch
{
Yardimci.Alert.Show("Kayıt seçilirken hata oluştu.");
}
}

}

private void Temizle()
{
lblID.Text = "";
Yardimci.Temizle(Panel1);
Yardimci.Temizle(Panel2);
Yardimci.Temizle(Panel3);
ASPxGridView2.DataBind();
throw new NotImplementedException();

}

protected void LinqDataSource1_Selecting(object sender, LinqDataSourceSelectEventArgs e)
{

}

protected void btnSil_Click(object sender, EventArgs e)
{
if (lblID.Text != "")
{
using (connection dc = new connection())
{
try
{
int id = int.Parse(lblID.Text);
tblMusteri hk = dc.tblMusteris.FirstOrDefault(k => k.ID == id);
dc.tblMusteris.DeleteOnSubmit(hk);

var mCari = from mc in dc.tblMusteriCaris
where mc.MusteriID == id
select mc;
dc.tblMusteriCaris.DeleteAllOnSubmit(mCari);

var islem = from isl in dc.tblIslems
where isl.MusteriID == id
select isl;
dc.tblIslems.DeleteAllOnSubmit(islem);

var randevu = from rdv in dc.tblRandevus
where rdv.HastaID == id
select rdv;
dc.tblRandevus.DeleteAllOnSubmit(randevu);

var kasa = from ks in dc.tblKasas
where ks.MusteriID == id
select ks;
dc.tblKasas.DeleteAllOnSubmit(kasa);

var konsil = from kon in dc.tblKonsAyaks
where kon.MusteriID == id
select kon;
dc.tblKonsAyaks.DeleteAllOnSubmit(konsil);

var konsilc = from konC in dc.tblKonsCilts
where konC.MusteriID == id
select konC;
dc.tblKonsCilts.DeleteAllOnSubmit(konsilc);

var konsilL = from konL in dc.tblKonsLazers
where konL.MusteriID == id
select konL;
dc.tblKonsLazers.DeleteAllOnSubmit(konsilL);

dc.SubmitChanges();

Temizle();
Yardimci.Alert.Show("Kayıt Başarılı Bir Şekilde Silindi...");
}
catch
{
Yardimci.Alert.Show("Kayıt Silinirken Hata Oluştu...");
}

}
}
else
{
Yardimci.Alert.Show("Kayıt seçilmedi. Lütfen silmek için bir kayıt seçiniz...");
}
}

protected void btnYeni_Click(object sender, EventArgs e)
{
Temizle();
}
protected void LinqDataSource1_Selecting1(object sender, LinqDataSourceSelectEventArgs e)
{

}
}
}

Web.Config : sayfasının kodları :

<configuration>
<configSections>
<sectionGroup name="devExpress">
<section name="themes" type="DevExpress.Web.ThemesConfigurationSection, DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
<section name="compression" type="DevExpress.Web.CompressionConfigurationSection, DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
<section name="settings" type="DevExpress.Web.SettingsConfigurationSection, DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
<section name="errors" type="DevExpress.Web.ErrorsConfigurationSection, DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" requirePermission="false" />
</sectionGroup>
</configSections>
<connectionStrings>
<add name="SeansTakipConnectionString" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=SeansTakip;Integrated Security=True;"
providerName="System.Data.SqlClient" />
</connectionStrings>
<system.web>
<roleManager enabled="true">
<providers>
<clear />
<add connectionStringName="SeansTakipConnectionString" applicationName="/" name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" />
<add applicationName="/" name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" />
</providers>
</roleManager>
<membership>
<providers>
<clear />

<add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="SeansTakipConnectionString1" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="true" requiresUniqueEmail="true" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="100" applicationName="/" />
</providers>
</membership>
<profile>
<providers>
<clear />

<add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="SeansTakipConnectionString1" applicationName="/" />
</providers>
</profile>
<compilation debug="true" targetFramework="4.5">
<assemblies>
<add assembly="DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=B88D1754D700E49A" />
<add assembly="DevExpress.Data.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=B88D1754D700E49A" />
<add assembly="DevExpress.Printing.v15.1.Core, Version=15.1.5.0, Culture=neutral, PublicKeyToken=B88D1754D700E49A" />
<add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
<add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="DevExpress.RichEdit.v15.1.Core, Version=15.1.5.0, Culture=neutral, PublicKeyToken=B88D1754D700E49A" />
<add assembly="System.Web.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="DevExpress.Web.ASPxThemes.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" />
<add assembly="DevExpress.Web.ASPxHtmlEditor.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=B88D1754D700E49A" />
<add assembly="DevExpress.Web.ASPxSpellChecker.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=B88D1754D700E49A" />
<add assembly="DevExpress.Office.v15.1.Core, Version=15.1.5.0, Culture=neutral, PublicKeyToken=B88D1754D700E49A" />
<add assembly="DevExpress.SpellChecker.v15.1.Core, Version=15.1.5.0, Culture=neutral, PublicKeyToken=B88D1754D700E49A" />
</assemblies>
</compilation>
<httpRuntime targetFramework="4.5" />
<httpModules>
<add type="DevExpress.Web.ASPxHttpHandlerModule, DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" name="ASPxHttpHandlerModule" />
</httpModules>
<httpHandlers>
<add type="DevExpress.Web.ASPxHttpHandlerModule, DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" verb="GET" path="DX.ashx" validate="false" />
<add type="DevExpress.Web.ASPxUploadProgressHttpHandler, DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" verb="GET,POST" path="ASPxUploadProgressHandlerPage.ashx" validate="false" />
</httpHandlers>
</system.web>
<location path="Default.aspx">
<system.web>
<authorization>
<allow roles="Admin" />
<allow roles="Personel" />
<allow roles="Yetkili" />
<deny users="*" />
</authorization>
</system.web>
</location>
<system.webServer>
<modules>
<add type="DevExpress.Web.ASPxHttpHandlerModule, DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" name="ASPxHttpHandlerModule" />
</modules>
<validation validateIntegratedModeConfiguration="false" />
<handlers>
<add type="DevExpress.Web.ASPxHttpHandlerModule, DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" verb="GET" path="DX.ashx" name="ASPxHttpHandlerModule" preCondition="integratedMode" />
<add type="DevExpress.Web.ASPxUploadProgressHttpHandler, DevExpress.Web.v15.1, Version=15.1.5.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" verb="GET,POST" path="ASPxUploadProgressHandlerPage.ashx" name="ASPxUploadProgressHandler" preCondition="integratedMode" />
</handlers>
</system.webServer>
<devExpress>
<themes enableThemesAssembly="true" styleSheetTheme="" theme="" customThemeAssemblies="" />
<compression enableHtmlCompression="false" enableCallbackCompression="true" enableResourceCompression="true" enableResourceMerging="true" />
<settings doctypeMode="Xhtml" rightToLeft="false" embedRequiredClientLibraries="false" ieCompatibilityVersion="edge" />
<errors callbackErrorRedirectUrl="" />
</devExpress>
</configuration>

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