Entity frame work

Question

I created stored procedure for retrieve data by Id in sql server

Create procedure [dbo].Retrievebyid(@ID int) as begin
select [Name],
[Manufacturer],
[Model]
from HardwareDbTable where AssetID=@ID end

Now goto visual studio create project and take web-aplication in that added ADO.NET EntityModel.

And i try to call that SP but i don't know how do it.

Entities db = new Entities();
void Edit()
{
str = Convert.ToInt16(Request.QueryString["id"]);
db.Edit_Hwdb(ID: str);
Edit_Hwdb_Result dbb = new Edit_Hwdb_Result();
TextBox1.Text = dbb.AssetName;
TextBox2.Text = dbb.Manufacturer;
TextBox3.Text = dbb.Model;
}

but its not retieving any data.