How Do I Add Data To Database Using Ado.Net Entity Framework

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C#

ASP.NET

Hi there ...
I want to add data to DB using jQuery and ado.net Entity
Here is my Asp codes

<asp:Label ID="Label1" runat="server" Text="Processor Code Name">
<asp:TextBox ID="processorCodeName" runat="server" >
<asp:Label ID="Label2" runat="server" Text="Socket">
<asp:TextBox ID="socket" runat="server" >
<asp:Label ID="Label3" runat="server" Text="Number of Cores">
<asp:TextBox ID="numberOfCores" runat="server" >
<asp:Label ID="Label4" runat="server" Text="Core Speed">
<asp:TextBox ID="coreSpeed" runat="server" >
<asp:Label ID="Label5" runat="server" Text="On Die L1 Cache">
<asp:TextBox ID="onDieL1Cache" runat="server" >
<asp:Label ID="Label6" runat="server" Text="On Die L2 Cache">
<asp:TextBox ID="onDieL2Cache" runat="server" >
<asp:Label ID="Label7" runat="server" Text="On Die L3 Cache">
<asp:TextBox ID="onDieL3Cache" runat="server" >
<asp:Label ID="Label8" runat="server" Text="Cmos">
<asp:TextBox ID="cmos" runat="server" >
<asp:Label ID="Label9" runat="server" Text="QPI-GT/s - FSB-MHz Speed">
<asp:TextBox ID="qPIGTsFSBMHzSpeed" runat="server" >
<asp:Label ID="Label10" runat="server" Text="Intagrated Graphic">
<asp:TextBox ID="intagratedGraphic" runat="server" >
<asp:Label ID="Label11" runat="server" Text="Graphic Base Frequency">
<asp:TextBox ID="graphicBaseFrequency" runat="server" >

<asp:Label ID="Label12" runat="server" Text="تصویر1">	<asp:FileUpload ID="Pic1" runat="server" />
<asp:Label ID="Label13" runat="server" Text="تصویر2">	<asp:FileUpload ID="Pic2" runat="server" />
<asp:Label ID="Label14" runat="server" Text="تصویر3">	<asp:FileUpload ID="Pic3" runat="server" />
<asp:Label ID="Label15" runat="server" Text="لوگوی محصول">	<asp:FileUpload ID="Logo" runat="server" />

<asp:Button ID="btnSave" runat="server" Text="ثبت" Width="100px" />

</form>
<script src="../jQuery/jQuery 1.7.1-min.js"></script>
<script>
$(document).ready(function () {
$('#btnSave').click(function () {
var ProcessorCodeName = $('#<%=processorCodeName.ClientID%>').val();
var Socket = $('#<%=socket.ClientID%>').val();
var NumberOfCores = $('#<%=numberOfCores.ClientID%>').val();
var CoreSpeed = $('#<%=coreSpeed.ClientID%>').val();
var OnDieL1Cache = $('#<%=onDieL1Cache.ClientID%>').val();
var OnDieL2Cache = $('#<%=onDieL2Cache.ClientID%>').val();
var OnDieL3Cache = $('#<%=onDieL3Cache.ClientID%>').val();
var Cmos = $('#<%=cmos.ClientID%>').val();
var QPIGTsFSBMHzSpeed = $('#<%=qPIGTsFSBMHzSpeed.ClientID%>').val();
var IntagratedGraphic = $('#<%=intagratedGraphic.ClientID%>').val();
var GraphicBaseFrequency = $('#<%=graphicBaseFrequency.ClientID%>').val();
var pic1 = $('#<%=Pic1.ClientID%>').val();
var pic2 = $('#<%=Pic2.ClientID%>').val();
var pic3 = $('#<%=Pic3.ClientID%>').val();
var logo = $('#<%=Logo.ClientID%>').val();

$.ajax({
url: "cpu.aspx/cpusave",
type: "POST",
dataType: "json",
contentType: "application/json; charset=utf-8",
data: JSON.stringify({
"processorCodeName": processorCodeName,
"socket": Socket,
"numberOfCores": numberOfCores,
"coreSpeed": coreSpeed,
"onDieL1Cache": onDieL1Cache,
"onDieL2Cache": onDieL2Cache,
"onDieL3Cache": onDieL3Cache,
"cmos": cmos,
"qPIGTsFSBMHzSpeed": qPIGTsFSBMHzSpeed,
"intagratedGraphic": intagratedGraphic,
"graphicBaseFrequency": iraphicBaseFrequency,
"Pic1": Pic1,
"Pic2": Pic2,
"Pic3": Pic3,
"Logo": Logo
}),
})
});
});
</script>
</body>
</html>

And this is my code Behind c#

<pre lang="cs">[WebMethod]
public string cpusave(string processorCodeName, string socket, string numberOfCore, string coreSpeed, string onDieL1Cache, string onDieL2Cache, string onDieL3Cache,string cmos, string qPIGTsFSBMHzSpeed, string intagratedGraphic, string graphicBaseFrequency, string Pic1,string Pic2,string Pic3,string Logo,string Owner)
{
      string status = "سخت افزار مورد نظر با موفقیت ثبت شد";
     var ab = new cpu1 {ProcessorCodeName = processorCodeName,Socket=socket,NumberOfCore=numberOfCore,CoreSpeed=coreSpeed,OnDieL1Cache=onDieL1Cache,OnDieL2Cache=onDieL2Cache,OnDieL3Cache=onDieL3Cache,Coms=cmos,QPIGTsFSBMHzSpeed=qPIGTsFSBMHzSpeed,IntagratedGraphic=intagratedGraphic,GraphicBaseFrequency=graphicBaseFrequency,pic1=Pic1,pic2=Pic2,pic3=Pic3,logo=Logo,owner=Owner};
     var dc = new arsEntities1();
     dc.cpus.Add(ab); //ERROR here
     dc.SaveChanges();
     status="success"
}

How can i solve this Error
I Create a class and named it cpu

namespace ASPJquerySaveData
{
    public partial class cpu1
    {
        public string CoreSpeed { get; set; }
        public string id { get; set; }
        public string brand { get; set; }
        public string cost { get; set; }
        public string partnercost { get; set; }
        public string ProcessorCodeName { get; set; }
        public string Socket { get; set; }
        public string NumberOfCore { get; set; }
        public string OnDieL1Cache { get; set; }
        public string OnDieL2Cache { get; set; }
        public string OnDieL3Cache { get; set; }
        public string Coms { get; set; }
        public string QPIGTsFSBMHzSpeed { get; set; }
        public string IntagratedGraphic { get; set; }
        public string GraphicBaseFrequency { get; set; }
        public string pic1 { get; set; }
        public string pic2 { get; set; }
        public string pic3 { get; set; }
        public string logo { get; set; }
        public string owner { get; set; }
    }
}