private void bindData()
{
WorkPeriod workPeriod = new WorkPeriod();
workPeriod.period_code = txtPeriodCode.Text.Trim();
workPeriod.period_name = txtPeriodName.Text.Trim();
workPeriod.period_description = txtPeriodDesc.Text.Trim();
workPeriod.open_period_by = txtOpenPeriodBy.Text.Trim();
workPeriod.close_period_by = txtClosePeriodBy.Text.Trim();
grdWorkPeriod.AutoGenerateColumns = false;
grdWorkPeriod.DataSource = ServiceProvider.WorkPeriodService.FindWorkPeriod(workPeriod);
grdWorkPeriod.DataMember = "Table";
grdWorkPeriod.AllowUserToAddRows = false;
grdWorkPeriod.AllowUserToDeleteRows = false;
grdWorkPeriod.ReadOnly = true;
}