protected void btnSubmitFile_Click(object sender, EventArgs e)
        {
            string filePath    = flpSignImage.PostedFile.FileName;
            string filename    = Path.GetFileName(filePath);
            string ext         = Path.GetExtension(filename);
            string contenttype = String.Empty;

            //Set the contenttype based on File Extension
            switch (ext)
            {
            case ".jpg":
                contenttype = "image/jpg";
                break;

            case ".png":
                contenttype = "image/png";
                break;

            case ".gif":
                contenttype = "image/gif";
                break;
            }
            if (contenttype != String.Empty)
            {
                Stream         fs        = flpSignImage.PostedFile.InputStream;
                BinaryReader   br        = new BinaryReader(fs);
                Byte[]         signImage = br.ReadBytes((Int32)fs.Length);
                bool           s         = business.InsertCheckOutSign(signImage, drpUser.SelectedValue.ToString(), Convert.ToInt32(drpUserStatus.SelectedValue), txtFromDate.Text, txtToDate.Text);
                CommonBusiness cb        = new CommonBusiness();
                cb.InsertIntoUserLog(Convert.ToInt32(Session[sessionNames.userID_Karbar]), DateTime.Now.ToString("HH:mm"), Convert.ToInt32(Session[sessionNames.appID_Karbar]), (int)DTO.eventEnum.درج_امضا_کاربر_در_سیستم_تسویه, "کارتابل " + drpUserStatus.SelectedItem.Text + " _ تاریخ " + txtFromDate.Text + " الی " + txtToDate.Text, Convert.ToInt32(drpUser.SelectedValue));
                bltUserRols.Items.Add(drpUser.SelectedItem);
                string base64String = Convert.ToBase64String(signImage, 0, signImage.Length);
                imgSign.ImageUrl     = "data:image/png;base64," + base64String;
                lblMessage.ForeColor = System.Drawing.Color.Green;
                lblMessage.Text      = "عکس امضا با موفقیت ثبت شد";
            }
            else
            {
                lblMessage.ForeColor = System.Drawing.Color.Red;
                lblMessage.Text      = "نوع فایل صحیح نیست" +
                                       " لطفا فقط عکس با فرمت های jpg/png/gif ارسال کنید";
            }
        }