datagrid自编的分页代码。。

时间：2010-12-27 来源：danball

DataTable dt = DataAccess.DataWpxx.Get_Wpxx("", lbdm, xlid, "1", rb_zt.Text.Trim());
dg_user.DataSource = dt;

//从这里开始

            // iii页数 jj索引 myjls每页记录数 jls记录数 ys页数 zys总页数 zdys转到页数
            int myjls = 10;
            if (tb_jls.Text.Trim() == "")
                tb_jls.Text = myjls.ToString().Trim();
            else
            {
                try
                {
                    int.Parse(tb_jls.Text.Trim());
                }
                catch (Exception)
                {
                    tb_jls.Text = myjls.ToString().Trim();
                }
                myjls = int.Parse(tb_jls.Text.Trim());
            }
            dg_user.PageSize = myjls;

            //取总页数
            int zjls = dt.Rows.Count;
            lbl_sps.Text = zjls.ToString().Trim();

            double zys = 0;
            if (zjls % myjls != 0)
                zys = zjls / myjls + 1;
            else
                zys = zjls / myjls;

lbl_zys.Text = zys.ToString().Trim();
//转到赋值

            //取当前页数
            int iii = 0;
            int jj = 0;
            if (ys == "0")
            {
                iii = 1;
                jj = 0;
            }
            else
            {
                iii = int.Parse(ys);
                jj = int.Parse(ys) - 1;
            }
            lbl_ys.Text = iii.ToString().Trim();

            dd_zdys.Items.Clear();
            for (int iiii = 1; iiii <= zys; iiii++) //之前写成iii了
            {
                ListItem it = new ListItem(iiii.ToString().Trim(), iiii.ToString().Trim());
                dd_zdys.Items.Insert(iiii - 1, it);
            }
            if (dd_zdys.Items.Count == 0)
                dd_zdys.Items.Insert(0, "1");
            dd_zdys.SelectedIndex = jj;

            if (zjls == 0)
            {
                lbn_f.Enabled = false;
                lbn_p.Enabled = false;
                lbn_n.Enabled = false;
                lbn_l.Enabled = false;
            }
            else
            {
                //按钮是否显示
                if (iii == 1)
                {
                    lbn_f.Enabled = false;
                    lbn_p.Enabled = false;
                    lbn_n.Enabled = false;
                    lbn_l.Enabled = false;
                }
                else
                {
                    lbn_f.Enabled = true;
                    lbn_p.Enabled = true;
                }
                if (iii == zys)
                {
                    lbn_n.Enabled = false;
                    lbn_l.Enabled = false;
                }
                else
                {
                    lbn_n.Enabled = true;
                    lbn_l.Enabled = true;
                }
            }

            PagedDataSource Pds = new PagedDataSource();  //分页的对象
            Pds.DataSource = dt.DefaultView;
            Pds.AllowPaging = true;
            Pds.PageSize = myjls;
            Pds.CurrentPageIndex = jj;

            dg_user.DataSource = Pds;
            dg_user.DataBind();
        }
        #endregion

    #region Imb_go_Click
        protected void Imb_go_Click(object sender, ImageClickEventArgs e)
        {
            if (tb_jls.Text == "")
                tb_jls.Text = "10";
            try
            {
                int.Parse(tb_jls.Text.Trim());
            }
            catch (Exception)
            {
                tb_jls.Text = "10";
            }
            Bind_Wpxx("0", dd_dl.SelectedItem.Value, dd_xl.SelectedItem.Value);
        }
        #endregion

        #region lbn_f_Click 首页
        protected void lbn_f_Click(object sender, System.EventArgs e)
        {
            Bind_Wpxx("0", dd_dl.SelectedItem.Value, dd_xl.SelectedItem.Value);
        }
        #endregion

        #region lbn_p_Click 上一页
        protected void lbn_p_Click(object sender, System.EventArgs e)
        {
            int i = int.Parse(lbl_ys.Text.Trim()) - 1;
            Bind_Wpxx(i.ToString().Trim(), dd_dl.SelectedItem.Value, dd_xl.SelectedItem.Value);
        }
        #endregion

        #region lbn_n_Click 下一页
        protected void lbn_n_Click(object sender, System.EventArgs e)
        {
            int i = int.Parse(lbl_ys.Text.Trim()) + 1;
            Bind_Wpxx(i.ToString().Trim(), dd_dl.SelectedItem.Value, dd_xl.SelectedItem.Value);
        }
        #endregion

        #region lbn_l_Click 最后一页
        protected void lbn_l_Click(object sender, System.EventArgs e)
        {
            int i = int.Parse(lbl_zys.Text.Trim());
            Bind_Wpxx(i.ToString().Trim(), dd_dl.SelectedItem.Value, dd_xl.SelectedItem.Value);

}
#endregion

        #region dd_zdys_SelectedIndexChanged 转到
        protected void dd_zdys_SelectedIndexChanged(object sender, System.EventArgs e)
        {
            Bind_Wpxx(dd_zdys.SelectedItem.Value, dd_dl.SelectedItem.Value, dd_xl.SelectedItem.Value);
        }
        #endregion

前端分页部分代码：