protected void Page_Load(object sender, EventArgs e)
{
 if (!IsPostBack)
 {
  ViewState["Page"] = 0;
  Bangding();
 }
}
//绑定数据
public void Bangding()
{
 PagedDataSource pds = new PagedDataSource();
 pds.DataSource = MerchandiseManager.GetList("");
 pds.AllowPaging = true;
 pds.PageSize = 5; //每页记录数
 pds.CurrentPageIndex = Pager;//当前页
 lblCurrPage.Text = "第" + (pds.CurrentPageIndex + 1).ToString() + "页 共" + pds.PageCount.ToString() + "页";
 SetEnable(pds);//上下页按钮的有效壮态
 dlistMerchand.DataSource = pds;
 dlistMerchand.DataBind();
}
private int Pager
{
 get
 {
  return (int)ViewState["Page"];
 }
 set
 {
  ViewState["Page"] = value;
 }
}
//下一页
protected void LinkButton1_Click(object sender, EventArgs e)
{
 Pager++;
 Bangding();
}
//上一页
protected void LinkButton2_Click(object sender, EventArgs e)
{
 Pager--;
 Bangding();
}
//上下页按钮的有效壮态
private void SetEnable(PagedDataSource pds)
{
 btnShang.Enabled = true;
 btnXia.Enabled = true;
 if (pds.IsFirstPage)
 {
  btnShang.Enabled = false;
 }
 if (pds.IsLastPage)
 {
  btnXia.Enabled = false;
 }
}