datalist 分页
private void indexListBind()
??? {
??????? try
??????? {
??????????? string parID = Request.QueryString["id"].ToString();
??????????? int curPage = Convert.ToInt32(this.lb_pageIndex.Text) - 1;//獲取當前頁碼,我用的是一個lable.當了中間變量
??????????? con = Admin_DB.getConn();
??????????? con.Open();
??????????? DataSet ds = new DataSet();
??????????? string Path = "~";
??????????? OleDbDataAdapter sda = new OleDbDataAdapter("select ID,'" + Path + "'+imagePath as imagePath,introduce from D_Picture where parID=@parID", con);
??????????? sda.SelectCommand.Parameters.Add(new OleDbParameter("@parID", parID));
??????????? sda.Fill(ds, "index");
????? ??????System.Web.UI.WebControls.PagedDataSource ps = new PagedDataSource();//實例化分頁數據源
??????????? ps.DataSource = ds.Tables["index"].DefaultView;//將要綁定在datalist上的datatable給分頁數據源
??????????? ps.AllowPaging = true;
??????????? ps.PageSize = 8;//每頁顯示幾條記錄
??? ????????ps.CurrentPageIndex = curPage;//設置當前頁的索引(當前頁碼減1就是)
??????????? this.btn_up.Enabled = true;
??????????? this.btn_next.Enabled = true;
??????????? this.btn_frist.Enabled = true;
??????????? this.btn_end.Enabled = true;
??????????? endPage = ps.PageCount;
??????????? if (curPage == 0)//當是第一頁是.上一頁和首頁的按鈕不可用
??????????? {
??????????????? this.btn_up.Enabled = false;
??????????????? this.btn_frist.Enabled = false;
??????????? }
??????????? if (curPage == ps.PageCount - 1)//當是最后一頁時下一頁和最后一頁的按鈕不可用
??????????? {
??????????????? this.btn_next.Enabled = false;
??????????????? this.btn_end.Enabled = false;
??????????? }
??????????? this.indexList.DataSource = ps;
??????????? this.indexList.DataKeyField = "ID";
??????????? this.indexList.DataBind();
??????????? con.Close();
??????? }
??????? catch (Exception ex)
??????? {
??????????? Console.WriteLine(ex.Message);
??????? }
?
??? }
??? protected void btn_frist_Click(object sender, EventArgs e)
??? {
??????? this.lb_pageIndex.Text = "1";
??????? this.indexListBind();
??? }
??? protected void btn_up_Click(object sender, EventArgs e)
??? {
??????? int page = int.Parse(this.lb_pageIndex.Text) - 1;
??????? this.lb_pageIndex.Text = page.ToString();
??????? this.indexListBind();
??? }
??? protected void btn_next_Click(object sender, EventArgs e)
??? {
??????? int page = int.Parse(this.lb_pageIndex.Text) + 1;
??????? this.lb_pageIndex.Text = page.ToString();
??????? this.indexListBind();
??? }
??? protected void btn_end_Click(object sender, EventArgs e)
??? {
??????? this.lb_pageIndex.Text = endPage.ToString();
??????? this.indexListBind();
}
轉載于:https://www.cnblogs.com/Miton/archive/2011/06/01/2066069.html
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