页面代码:
1 <div style="margin-top:0px;">共<asp:Label ID="lb_count" runat="server" Text ="Label"></asp:Label>条记录 2 共<asp:Label ID="lb_page" runat="server" Text="Label"></asp:Label>页 3 当前第<asp:Label ID="lb_CurrentPage" runat="server" Text="1"></asp:Label>页 4 <br /> 5 <asp:LinkButton ID="LinkFirst" runat="server" OnClick="LinkFirst_Click"> 第一页 6 </asp:LinkButton> 7 <asp:LinkButton ID="LinkUp" runat="server" OnClick="LinkUp_Click"> 上一页 8 </asp:LinkButton> 9 <asp:LinkButton ID="LinkDown" runat="server" OnClick="LinkDown_Click"> 下一页 10 </asp:LinkButton> 11 <asp:LinkButton ID="LinkLast" runat="server" OnClick="LinkLast_Click"> 最后一页 12 </asp:LinkButton>转到第<asp:DropDownList ID="DropDownList1" runat="server" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" AutoPostBack="True"> 13 </asp:DropDownList>页</div>
后台代码:
protected SqlDataAdapter da; protected DataSet ds; private void getArticle() //取得Article 数据 { string connectionString = "Server=.;database=Flower;uid=sa;pwd=zhuwenfan"; SqlConnection myconn = new SqlConnection(connectionString);//取连接字符串,建立连接 da = new SqlDataAdapter(); da.SelectCommand = new SqlCommand("select * from FLOWERS_ORDER order by O_ID desc", myconn); ds = new DataSet(); try { myconn.Open(); da.Fill(ds, "Article"); myconn.Close(); } catch (SqlException e1) { Response.Write(e1.ToString()); } int cup = Convert.ToInt32(this.lb_CurrentPage.Text); //当前页数,初始化为地1 页 PagedDataSource ps = new PagedDataSource(); ps.DataSource = ds.Tables["Article"].DefaultView; ps.AllowPaging = true; ps.PageSize = 10; //每页显示的数据的行数 ps.CurrentPageIndex = cup - 1; lb_count.Text = ps.DataSourceCount.ToString(); //获取记录总数 lb_page.Text = ps.PageCount.ToString(); //获取总页数 if (!IsPostBack) { for (int i = 1; i < ps.PageCount + 1; i++) { this.DropDownList1.Items.Add(i.ToString()); } LinkUp.Enabled = true; LinkDown.Enabled = true; } try { DropDownList1.SelectedItem.Text = cup.ToString(); ListView1.DataSource = ps; ListView1.DataBind(); } catch (Exception ex) { Response.Write(ex.Message); } } protected void LinkDown_Click(object sender, EventArgs e) //下一页按钮代码 { try { lb_CurrentPage.Text = Convert.ToString(Convert.ToInt32(lb_CurrentPage.Text) + 1); DropDownList1.SelectedValue = lb_CurrentPage.Text; getArticle(); } catch { Response.Write("<script language=javascript>" + "alert(\"已经是最后一页\")" + "</script>"); lb_CurrentPage.Text = "1"; getArticle(); } } protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) //跳转到指定页代码 { int page = Convert.ToInt16((DropDownList1.SelectedItem.Value)); lb_CurrentPage.Text = page.ToString(); getArticle(); } protected void LinkUp_Click(object sender, EventArgs e) //上一页按钮代码 { try { if (Convert.ToInt16(lb_CurrentPage.Text) > 1) { lb_CurrentPage.Text = Convert.ToString(Convert.ToInt32(lb_CurrentPage.Text) - 1); DropDownList1.SelectedValue = lb_CurrentPage.Text; getArticle(); } else { Response.Write("<script>alert('已经是第一页');location.replace(location.href);</script>"); } } catch { Response.Write("<script>alert('已经是第一页');location.replace(location.href);</script>"); } } protected void LinkFirst_Click(object sender, EventArgs e) //跳到第一页代码 { if (lb_CurrentPage.Text != "1") { lb_CurrentPage.Text = "1"; } else { Response.Write("<script language=javascript>" + "alert(\" 已经是第一页\")" + "</script>"); } getArticle(); } protected void LinkLast_Click(object sender, EventArgs e) //跳到最后一页代码 { if (lb_CurrentPage.Text.ToString() != lb_page.Text.ToString()) { lb_CurrentPage.Text = lb_page.Text.ToString(); } else { Response.Write("<script language=javascript>" + "alert(\"已经是最后一页\")" + "</script>"); } getArticle(); }