C#和SQL数据浏览分页

");

Response.Write("");
Response.Write("");
Response.Write("");
}
Response.Write("

");
startID = ds.Tables["Table"].Rows[0].ItemArray[0].ToString(); //通过数组，取第一个数据，得到开始号“startID”
RowCount = ds.Tables["Table"].DefaultView.Count;//得到表的行数
endID = ds.Tables["Table"].Rows[RowCount-1].ItemArray[0].ToString();//通过数组，取最后一个数据，得到结束号“endID”
}
catch(SqlException e)
{
Response.Write(e.Message);
}
}

///

/// 计算未显示记录数
///

///
protected void NotShownRecords()
{
not_shown_records = this.CountRecord()/*查询总记录数*/ - (CurrentPage/*当前页*/ - 1) * page_count/*每页记录数*/;
}

///

/// 进行输出信息
///

protected void PageLoad_Count()
{
this.NotShownRecords();
Response.Write("总共"+this.CountRecord()+"条记录 ");
Response.Write("共有"+this.Page_Count()+"页 ");
Response.Write("第"+CurrentPage.ToString()+"页 ");
Response.Write("本页共有"+RowCount.ToString()+"条记录 ");
}
///

/// 获得总记录总数
///

/// 时间条件范围内记录总数intCount
protected int CountRecord()
{
int intCount = 0;
SqlConnection SqlCon = new SqlConnection(Common._DBConnStr);
SqlCon.Open ();

//找到条件范围内的记录总数
string strCount = "select count(*) from UnionInfo";

//找到符合条件的第一个记录
//string strNum = "select top 1 Id from UnionInfo";
SqlCommand MyComm = new SqlCommand(strCount,SqlCon);
SqlDataReader dr = MyComm.ExecuteReader();//读取数据流
if(dr.Read())
{
　 intCount = Int32.Parse(dr[0].ToString());
}
else
{
　 intCount = 0;
}
dr.Close();
SqlCon.Close();
return intCount;
}

///

/// 总分页数
///

/// 分页总数
protected int Page_Count()
{
int pageSum = 0;//分页总数
pageSum = this.CountRecord() / page_count; ///记录总数/分页的页数
if ((this.CountRecord() % page_count) > 0) pageSum++;
return pageSum;
}

///

/// 取得SQL语句
///

/// 返回命令行
///
private string GetSQLCommond(string vCommond,string startID,string endID)
{
this.NotShownRecords();//执行未显示的行
vCommond = "SELECT TOP "+page_count+" {0},{1},{2},{3} FROM [UnionInfo]";

if(IsPrior)//判断“上一页”
{

}

if(IsNext)//判断“下一页”
{
}
if (IsLast)//判断“最后一页”
{
}
vCommond = string.Format(vCommond,"Id","Title","SummaryDateTime","ReadTimes");//这个是数据表的字段
return vCommond;
}

///

/// 输入按钮的状态，进行是否可用
///

/// 第一页的状态
/// 上一页的状态
/// 下一页的状态
/// 最后一页的状态
protected void SetButtonState(bool first_,bool prior_,bool next_,bool last_)
{
if (CurrentPage==1)//到“第一页”
{
first.Disabled = true;//第一页状态
prior.Disabled = true;//上一页状态
next.Disabled = false; //下一页状态
last.Disabled = false; //最后一页状态
}
else if (CurrentPage==this.Page_Count())//到“最后一页”
{
first.Disabled = false;//第一页状态
prior.Disabled = false;//上一页状态
next.Disabled = true; //下一页状态
last.Disabled = true; //最后一页状态
}
else
{
first.Disabled = first_;//第一页状态
prior.Disabled = prior_;//上一页状态
next.Disabled = next_; //下一页状态
last.Disabled = last_; //最后一页状态
}
}
///

/// 第一页按钮
///

///
///
private void first_ServerClick(object sender, System.EventArgs e)
{
CurrentPage = 1;
this.SetButtonState(true,true,false,false);
startID = "";
endID = "";
RowCount = '0';
IsLast = false;
IsPrior = false;
IsNext = false;
}

///

/// 上一页按钮
///

///
///
private void prior_ServerClick(object sender, System.EventArgs e)
{
if( CurrentPage == 1)//判断“当前页”是否为1
{
this.SetButtonState(true,true,false,false);
}
else
{
CurrentPage=CurrentPage - 1;//“当前页”自减
this.SetButtonState(false,false,false,false);
}
IsPrior = true;
IsNext = false;
IsLast = false;
}

///

/// 最后一页
///

///
///
private void last_ServerClick(object sender, System.EventArgs e)
{
CurrentPage=this.Page_Count();//到最后一页
this.SetButtonState(false,false,true,true);
IsLast = true;
IsPrior = false;
IsNext = false;
}

///

/// 下一页
///

///
///
private void next_ServerClick(object sender, System.EventArgs e)
{
if(CurrentPage == this.Page_Count())//判断“当前页”是否为“分页总数”
{
this.SetButtonState(false,false,true,true);
}
else
{
CurrentPage=CurrentPage + 1;//“当前页”自加
this.SetButtonState(false,false,false,false);
}
IsNext = true;
IsLast = false;
IsPrior = false;
}

///

/// 初始浏览按钮
///

///
///
private void Init_Brower()
{
CurrentPage = 1;//肯定是从第一页开始
if ((CurrentPage == 1) && (this.Page_Count() == 1))
{
first.Disabled = true;//第一页状态
prior.Disabled = true;//上一页状态
next.Disabled = true;//下一页状态
last.Disabled = true; //最后一页状态
}
else
{
first.Disabled = true;//第一页状态
prior.Disabled = true;//上一页状态
next.Disabled = false;//下一页状态
last.Disabled = false; //最后一页状态
}
startID = "";//开始号
endID = "";//结束号
IsLast = false;
IsPrior = false;
IsNext = false;
}
}
}
本文没有列出SQL语句，是希望我和我的好朋友们的劳动成果已经用于商业用途了，还有就是希望各位自己动手写写，应该没有问题的了

★如果需要考虑如时间的过滤、其他条件的加入...... 如果需要考虑如时间的过滤、其他条件的加入，可以在SQL语句进行编辑，普通的网站，下面的数据浏览分页 就可以了。 aspx代码： <%@ Page language="c#" Codebehind="StockOrderFormBrower.aspx.cs" AutoEventWireup="false" Inherits="GSP.StockOrderFormBrower" %> <%ShowData();%> <%PageLoad_Count();%> aspx.cs代码： using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Drawing; using System.Web; using System.Web.SessionState; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.HtmlControls; using System.Data.SqlClient; namespace ASWBLM { /// /// /// public class UnionInfo : System.Web.UI.Page { protected System.Web.UI.HtmlControls.HtmlInputButton first; protected System.Web.UI.HtmlControls.HtmlInputButton prior; protected System.Web.UI.HtmlControls.HtmlInputButton last; protected System.Web.UI.HtmlControls.HtmlInputButton next; protected static int CurrentPage = 1;//初始化开始页面 protected static int RowCount = 0 ;//本页有多少条 private static bool IsPrior = false;//有“前一页” private static bool IsNext = false;//有“下一页” private static bool IsLast = false;//有“最后一页” protected static int not_shown_records=0;//计算未显示记录数 private static string startID = "";//设置上一页开始ID private static string endID = "";//设置下一页结束ID private static int page_count = 10;//初始化页面记录数 private void Page_Load(object sender, System.EventArgs e) { // 在此处放置用户代码以初始化页面 if (!IsPostBack) { this.CountRecord().ToString();// 记录总数 this.Page_Count().ToString();//分页总数 Init_Brower();//初始化浏览 } } #region Web 窗体设计器生成的代码 override protected void OnInit(EventArgs e) { // // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。 // InitializeComponent(); base.OnInit(e); } /// /// 设计器支持所需的方法 - 不要使用代码编辑器修改 /// 此方法的内容。 /// private void InitializeComponent() { this.first.ServerClick += new System.EventHandler(this.first_ServerClick); this.prior.ServerClick += new System.EventHandler(this.prior_ServerClick); this.next.ServerClick += new System.EventHandler(this.next_ServerClick); this.last.ServerClick += new System.EventHandler(this.last_ServerClick); this.Load += new System.EventHandler(this.Page_Load); } #endregion /// /// 显示数据 /// protected void ShowData() { DataSet ds = new DataSet();//数据集 ASWBLM.Include.UnionInfo_Provider _uip = new ASWBLM.Include.UnionInfo_Provider(); string vSQL = ""; vSQL = GetSQLCommond(vSQL,startID,endID); ds = _uip.ShowAllUnionInfo(vSQL);//取得全部数据的数据集 try { Response.Write(" "); foreach(DataRow dr in ds.Tables["Table"].Rows) { Response.Write("

"); Response.Write(""); Response.Write(dr["Title"].ToString()); Response.Write(""); Response.Write("

"); Response.Write(""); Response.Write("( "+dr["SummaryDateTime"].ToString()+" )"); Response.Write(" ( 已阅读"+dr["ReadTimes"].ToString()+"次 )"); Response.Write(""); Response.Write("