private void Service_ServiceBookDetailsApproval_GetAll()
        {
            Business.Service.ServiceBook objServiceBook = new Business.Service.ServiceBook();
            Entity.Service.ServiceBook   serviceBook    = new Entity.Service.ServiceBook()
            {
                MachineId      = txtMachineId.Text.Trim(),
                FromDate       = (!string.IsNullOrEmpty(txtLogFromDate.Text.Trim()) ? Convert.ToDateTime(txtLogFromDate.Text.Trim()) : DateTime.MinValue),
                ToDate         = (!string.IsNullOrEmpty(txtLogToDate.Text.Trim()) ? Convert.ToDateTime(txtLogToDate.Text.Trim()) : DateTime.MinValue),
                ApprovalStatus = Convert.ToInt32(ddlApprovalStatus.SelectedValue),
                CallType       = (int)CallType.Toner
            };

            DataTable dt = objServiceBook.Service_ServiceBookDetailsApproval_GetAll(serviceBook);

            gvApproval.DataSource = dt;
            gvApproval.DataBind();
        }