public virtual void ReadPageNbr()
{
HttpContext context = HttpContext.Current;
string sPageNbr = "";
if (context.Request[this.PageNumbParm] != null) {
sPageNbr = context.Request[this.PageNumbParm].ToString();
}
if (!String.IsNullOrEmpty(sPageNbr)) {
int pg = int.Parse(sPageNbr);
this.PageNumber = pg;
}
}