how to insert zip folder images in database

        <asp:FileUpload ID="FileUpload1" runat="server" />

        <asp:Button ID="Button1" runat="server"

            Text="Button" onclick="Button1_Click" />

        <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>

private string TempUPath

    {

        get { if (!Directory.Exists(Server.MapPath("TempUploadPath"))) Directory.CreateDirectory(Server.MapPath("TempUploadPath")); return Server.MapPath("TempUploadPath"); }

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        if (FileUpload1.HasFile && FileUpload1.FileName.ToLower().EndsWith(".zip"))

        {

            using (ZipFile zf = ZipFile.Read(FileUpload1.FileContent))

            {

                zf.ExtractAll(TempUPath);

                foreach (var item in Directory.GetFiles(TempUPath))

                {

                    using (StreamReader sr=new StreamReader(item))

                    {

                        byte[] buffer=new byte[sr.BaseStream.Length];

                        sr.BaseStream.Read(buffer, 0, buffer.Length);

                        //Save this binary into database....

                        

                    }

                    //File.Delete(item);

                }

            }

        }

        else

            Label1.Text = "Please select a zip file to upload";

    }