NET 查询再分页

页面文件
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="show.aspx.cs" Inherits="addressbook_show" Debug="true" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>内部黄页</title>
    <link rel="stylesheet" rev="stylesheet" href="../css/style.css" type="text/css" media="all"/>
    <script language="javascript" type="text/javascript">  
    // 鼠标经过改变行的颜色
    if (!objbeforeItem)
    {
        var objbeforeItem=null;
        var objbeforeItembackgroundColor=null;
    }    
    function ItemOver(obj)
    {
        if(objbeforeItem)
        {
            objbeforeItem.style.backgroundColor = objbeforeItembackgroundColor;
        }
        objbeforeItembackgroundColor = obj.style.backgroundColor;
        objbeforeItem = obj;
        obj.style.backgroundColor = "#B9D1F3";    
    }
    </script>        
</head>
<body>
    <form id="form1" runat="server">
    <div>
             <center><asp:TextBox ID="txtSearch" runat="server"></asp:TextBox>
             <asp:Button ID="btnSearch" runat="server" OnClick="btnSearch_Click" Text="查 询" class=btn3_mouseout onmouseover="this.className='btn3_mouseover'"
onmouseout="this.className='btn3_mouseout'" onmousedown="this.className='btn3_mousedown'" onmouseup="this.className='btn3_mouseup'" style="width: 60px"/></center><br>
            <table>
            <tr><td>
            <asp:GridView ID="gvhtel" runat="server" AutoGenerateColumns="False" CellPadding="4" ForeColor="#333333" GridLines="None" AllowPaging="true"  PageSize="20"  PagerSettings-Visible="false" OnRowDataBound="gvhtel_RowDataBound">
                <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
                <Columns>
                    <asp:BoundField DataField="code" HeaderText="工号" HeaderStyle-Width="50px"/>
                    <asp:BoundField DataField="name" HeaderText="姓名" HeaderStyle-Width="100px"/>
                    <asp:BoundField DataField="department" HeaderText="科室" HeaderStyle-Width="100px"/>
                    <asp:BoundField DataField="tel" HeaderText="宅电" HeaderStyle-Width="70px"/>
                    <asp:BoundField DataField="mtel" HeaderText="手机" HeaderStyle-Width="70px"/>
                    <asp:BoundField DataField="xlt" HeaderText="小灵通" HeaderStyle-Width="70px"/>
                    <asp:BoundField DataField="htel" HeaderText="院内电话" HeaderStyle-Width="70px"/>
                    <asp:BoundField DataField="floor" HeaderText="楼层" HeaderStyle-Width="50px"/>
                    <asp:BoundField DataField="hmail" HeaderText="院内邮件" HeaderStyle-Width="80px"/>
                    <asp:BoundField DataField="mail" HeaderText="MSN" HeaderStyle-Width="50px"/>
                    <asp:BoundField DataField="qq" HeaderText="QQ" HeaderStyle-Width="50px"/>
                </Columns>
                <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
                <EditRowStyle BackColor="#999999" />
                <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
                <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
                <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
                <AlternatingRowStyle BackColor="White" ForeColor="#284775" />            
            </asp:GridView>
            </td></tr>
            <tr><td>
                        <asp:LinkButton ID="btnFirst" CommandArgument="first" OnClick="PagerButtonClick"
                            runat="server">首 页</asp:LinkButton> <asp:LinkButton ID="btnPrev" CommandArgument="prev" OnClick="PagerButtonClick" runat="server">上一页</asp:LinkButton>
                        <asp:LinkButton ID="btnNext" CommandArgument="next" OnClick="PagerButtonClick" runat="server">下一页</asp:LinkButton>
                        <asp:LinkButton ID="btnLast" CommandArgument="last" OnClick="PagerButtonClick" runat="server">尾 页</asp:LinkButton>
                        <asp:Label ID="LblCurrentIndex" runat="server"></asp:Label>
                        <asp:Label ID="LblPageCount" runat="server"></asp:Label>
                        <asp:Label ID="LblRecordCount" runat="server"></asp:Label>
跳转到第<asp:DropDownList ID="ddlCurrentPage" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
</asp:DropDownList>页
    </td></tr>
            </table>
    </div>
    </form>
</body>
</html>



cs文件
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Business;
using OceanSoft.Data;
using EntityControl.Entity;
using System.Data.SqlClient;
public partial class addressbook_show : System.Web.UI.Page
{
    private AddressBookDataSet addressbookds = null;
    private AddressBookManager addressbookmanager = null;
    private AddressBookDataSet.htelDataTable hteldt = null;
    private int widestData;
    protected void Page_Load(object sender, EventArgs e)
    {
        //首次调用页面,下次不进行Post提交,作为客户端组件运行
        if (!IsPostBack)
        {
            this.ViewState["btnisclick"] = "false";
            this.Bind("");
        }
    }

    /// <summary>
    /// 显示分页
    /// </summary>
    private void showPage()
    {
        LblCurrentIndex.Text = "第 " + (this.gvhtel.PageIndex + 1).ToString() + " 页";
        LblPageCount.Text = "共 " + this.gvhtel.PageCount.ToString() + " 页";
        LblRecordCount.Text = "总共 " + hteldt.Rows.Count.ToString() + " 条";
        if (hteldt.Rows.Count == 0)
        {
            btnFirst.Visible = false;
            btnPrev.Visible = false;
            btnNext.Visible = false;
            btnLast.Visible = false;
            LblCurrentIndex.Visible = false;
            LblPageCount.Visible = false;
            LblRecordCount.Visible = false;
        }
        else if (this.gvhtel.PageCount == 1)
        {
            btnFirst.Visible = false;
            btnPrev.Visible = false;
            btnNext.Visible = false;
            btnLast.Visible = false;
        }
        // 计算生成分页页码,分别为:"首 页" "上一页" "下一页" "尾 页"
        btnFirst.CommandName = "1";
        btnPrev.CommandName = (this.gvhtel.PageIndex == 0 ? "1" : this.gvhtel.PageIndex.ToString());
        btnNext.CommandName = (this.gvhtel.PageCount == 1 ? this.gvhtel.PageCount.ToString() : (this.gvhtel.PageIndex + 2).ToString());
        btnLast.CommandName = this.gvhtel.PageCount.ToString();
        //
        this.ddlCurrentPage.Items.Clear();
        for (int i = 1; i <= this.gvhtel.PageCount; i++)
        {
            this.ddlCurrentPage.Items.Add(i.ToString());
        }
        this.ddlCurrentPage.SelectedIndex = this.gvhtel.PageIndex;
    }

    /// <summary>
    /// 数据集绑定
    /// </summary>
    /// <param name="s"></param>
    private void Bind(string s)
    {
        addressbookds = new AddressBookDataSet();
        addressbookmanager = new AddressBookManager();
        hteldt = addressbookmanager.Search(s);
        try
        {
            this.gvhtel.DataSource = hteldt.DefaultView;
            this.gvhtel.DataBind();
            this.showPage();
        }
        catch (Exception e)
        {
            Response.Write(e.Message);
        }
    }

    /// <summary>
    /// 判断按纽是否被按下并绑定数据集
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Judge()
    {
        if (this.ViewState["btnisclick"].ToString() == "true")
        {
            this.Bind(this.txtSearch.Text.Trim());
        }
        else
        {
            this.Bind("");
        }
    }

    protected void btnSearch_Click(object sender, EventArgs e)
    {
        this.ViewState["btnisclick"] = "true";
        this.Bind(this.txtSearch.Text.Trim());
    }

    protected void PagerButtonClick(object sender, EventArgs e)
    {
        this.gvhtel.PageIndex = Convert.ToInt32(((LinkButton)sender).CommandName) - 1;
        this.Judge();
    }
    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        this.gvhtel.PageIndex = this.ddlCurrentPage.SelectedIndex;
        this.Judge();
    }
    protected void gvhtel_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        e.Row.Attributes["onmouseover"] = "ItemOver(this)";
    }
}
posted @ 2009-06-09 20:49  jay-c  阅读(147)  评论(0)    收藏  举报