asp.net gride view delete row and returne cell

Question

i have gride view and i add delete action on it it want when the user press on delete return value in exact cell to save it in another table who can i do this ?

i have this code :

using (SqlCommand _Cmd_Insert_NewLog = new SqlCommand("INSERT INTO tblLog (UserName,PCName,PCIP,LogDate,Note) VALUES(@UserName,@PCName,@PCIP,@LogDate,@Note)"))
{
 //------- To Get User Name -----------//
 string _StrUserName = "";
 _StrUserName = Session["EmployeeUserName"].ToString();

 //------- To Get Computer Name -----------//

 string _StrHostName = "";     _StrHostName = Dns.GetHostName();

 //------- To Get IP Address  -----------//

 string _StrHostIP = "";

 _StrHostIP = HttpContext.Current.Request.UserHostAddress.ToString();
 string _Str_Note = "The User : " + _StrUserName + " | Delete The Item With Barcode : " + LblBarcode.Text.Trim().ToString() + " | In Date : " + _DateAdd;
_Cmd_Insert_NewLog.CommandType = CommandType.Text;
_Cmd_Insert_NewLog.Parameters.AddWithValue("@UserName", _StrUserName);
_Cmd_Insert_NewLog.Parameters.AddWithValue("@PCName", _StrHostName);
_Cmd_Insert_NewLog.Parameters.AddWithValue("@PCIP", _StrHostIP);
_Cmd_Insert_NewLog.Parameters.AddWithValue("@LogDate", DateTime.Parse(_DateAdd));
_Cmd_Insert_NewLog.Parameters.AddWithValue("@Note", _Str_Note);
_Cmd_Insert_NewLog.Connection = _Conn;

//_Conn.Open();
_Cmd_Insert_NewLog.ExecuteNonQuery();
_Conn.Close();

}

LblBarcode.Text.Trim() its label i want to read the barcode from it the barcode in the grideview in cell 4