protected void btnupload_mul_Click(object sender, EventArgs e)
    {
        DBHelperClass dBHelperClass = new DBHelperClass();
        DataSet       dataSet = new DataSet();
        string        fname = "", lname = "", doa = "";


        foreach (HttpPostedFile postedFile in fupmul.PostedFiles)
        {
            //string[] fileName = Path.GetFileName(postedFile.FileName).Split(',');
            string fileName = Path.GetFileName(postedFile.FileName);
            string msg      = "";
            try
            {
                Regex re = new Regex(@"\d+");
                Match m  = re.Match(fileName);
                if (m.Success)
                {
                    string   file = fileName.Substring(0, m.Index);
                    string[] str  = file.Split(',');
                    // lblResults.Text = string.Format("RegEx found " + m.Value + " at position " + m.Index.ToString() + " character in string is " + file + " fname: " + str[1] + ",LastName:" + str[0]);
                    lname = str[0];

                    if (str[1].Contains("_"))
                    {
                        fname = str[1].Split('_')[0];
                    }
                    else
                    {
                        fname = str[1];
                    }

                    file = fileName;
                    str  = file.Split('_');
                    if (str.Length > 2)
                    {
                        doa = str[str.Length - 1].ToLower().Split('.')[0];
                    }
                }
                else
                {
                    string[] str = fileName.Split('_');
                    fname = str[0].Split(',')[1];
                    lname = str[0].Split(',')[0];
                }

                doa = CommonConvert.DateformatDOA(doa);
                doa = CommonConvert.DateFormat(doa);

                string[] strfname = fname.TrimStart().Split(' ');
                fname   = strfname[0];
                dataSet = dBHelperClass.selectData("select Patient_ID from tblPatientMaster where LastName='" + lname.Trim().TrimStart() + "' and FirstName='" + fname.Trim().TrimStart() + "'");

                if (dataSet != null && dataSet.Tables[0].Rows.Count > 0)
                {
                    string patientid = dataSet.Tables[0].Rows[0][0].ToString();

                    string upload_folder_path = "~/PatientDocument/" + patientid;

                    if (!Directory.Exists(upload_folder_path))
                    {
                        Directory.CreateDirectory(Server.MapPath(upload_folder_path));
                    }

                    postedFile.SaveAs(System.IO.Path.Combine(Server.MapPath(upload_folder_path), fileName));

                    sb.Append("<p>File Name : " + fileName + "  patientid:" + patientid + "     Status : Uploaded </p>");
                    sb.Append(Environment.NewLine);
                    Logger.Info("File Name : " + fileName + "  patientid:" + patientid + "     Status : Uploaded");

                    //string filename = System.DateTime.Now.Millisecond.ToString() + "_" + fileName;
                    if (checkName(fileName, patientid) == false)
                    {
                        string filename = fileName;
                        string query    = "insert into tblPatientDocument values('" + filename + "','" + System.DateTime.Now.ToString() + "','" + upload_folder_path + "/" + filename + "'," + patientid + ",'" + doa + "')";

                        dBHelperClass.executeQuery(query);
                    }
                }
                else
                {
                    sb.Append("<p style='color:red'> File Name : " + fileName + "     Status : Not Uploaded</p>");
                    sb.Append(Environment.NewLine);
                    Logger.Info("File Name : " + fileName + "     Status : Not Uploaded");
                }
            }
            catch (Exception ex)
            {
                sb.Append("<p style='color:red'>File Name : " + fileName + "     Status : Not Uploaded </p>");
                Logger.Error("File Name : " + fileName + "       Status : Not Uploaded \n");
            }
            lblResult.InnerHtml = sb.ToString();
        }
    }