问将Varbinary转换为上载图像MVC asp.net

EN

Create Procedure SelectBarang   
as     
Begin    
    Select * from Barang;    
End

public class ShopDB
{
    string cs = ConfigurationManager.ConnectionStrings["ShopEntities"].ConnectionString;

    public List<Barang> ListAll()
    {
        List<Barang> lst = new List<Barang>();
        SqlConnection con = new SqlConnection(cs);
        //using(SqlConnection con=new SqlConnection(cs))
        {
            con.Open();
            SqlCommand com = new SqlCommand("SelectBarang", con);
            com.CommandType = CommandType.StoredProcedure;
            SqlDataReader rdr = com.ExecuteReader();
            while (rdr.Read())
            {
                lst.Add(new Barang
                {
                    IdBarang = Convert.ToInt32(rdr["IdBarang"]),
                    NamaBarang = rdr["NamaBarang"].ToString(),
                    Harga = Convert.ToInt32(rdr["Harga"]),
                    CategoriId = Convert.ToInt32(rdr["CategoriId"]),
                    GambarBarang = Convert  ??                            
                });
            }
            return lst;
        }
    }
}