protected void imgBtnShowDeductBalance_OnCommand(object sender, CommandEventArgs e)
{
this.mPopUpShowDeductPrepaidPkg.Show();
selectedPrepaidBottle = PrepaidBottleManager.GetPrepaidBottleByID(Convert.ToInt32(e.CommandArgument.ToString()));
PrepaidBottleList pList = new PrepaidBottleList();
pList.Add(selectedPrepaidBottle);
//populate formview
fview_DeductPrepaidBottle.DataSource = pList;
fview_DeductPrepaidBottle.DataBind();
//display current balance
(fview_DeductPrepaidBottle.FindControl("lblCurrentBalanceValue") as Label).Text = selectedPrepaidBottle.Balance.ToString();
//set the focus on the deduct qty textbox
(fview_DeductPrepaidBottle.FindControl("txtDeductQty") as TextBox).Focus();
}