60%\"><font color=\"#00309C\">"); Response.Write("<a href=\"UnionInfo_Read.aspx?id="+dr["Id"].ToString()+"\" target=\"_self\">"); Response.Write(dr["Title"].ToString()); Response.Write("</a>"); Response.Write("</td>"); Response.Write("<td align=\"right\">"); Response.Write("<font color=\"#999999\">"); Response.Write("( "+dr["SummaryDateTime"].ToString()+" )"); Response.Write(" ( 已阅读"+dr["ReadTimes"].ToString()+"次 )"); Response.Write("</font>"); Response.Write("</td>"); Response.Write("</tr>"); } Response.Write("</p>"); 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); } } /// <summary> /// 计算未显示记录数 /// </summary> /// <returns></returns> 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*/; }
/// <summary> /// 进行输出信息 /// </summary> 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 "); }
/// <summary> /// 获得总记录总数 /// </summary> /// <returns>时间条件范围内记录总数intCount</returns> 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; } /// <summary> /// 总分页数 /// </summary> /// <returns>分页总数</returns> 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; }
/// <summary> /// 取得SQL语句 /// </summary> /// <param name="vCmd">返回命令行</param> /// <returns></returns> 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; } /// <summary> /// 输入按钮的状态,进行是否可用 /// </summary> /// <param name="first">第一页的状态</param> /// <param name="prior">上一页的状态</param> /// <param name="next1">下一页的状态</param> /// <param name="last">最后一页的状态</param> 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 &
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