千万级数据分页之二---一个简单的自定义分页控件

千万级数据分页详细设计

1.引言

1.1目的

为适应大数据量分页的需要，为以后千万级数据分页提供解决方法或者参考，节省开发时间，特制定本详细设计方案

1.2主要阅读对象

脚本设计人员

1.3参考资料

http://www.cnblogs.com/SGSoft/archive/2004/10/23/55800.html

2.详细设计

2.1分页存储过程

2.1.1简介

2.1.2分页存储过程代码

以下代码是网上找的分页存储过程，我是在原存储过程的基础上加了一个 @IsCount bit = 0, 主要是用来返回纪录总数，当为非 0 值时返回。下面注释部分是原作者的测试部分。我在本机 sql server 2005 上的测试是在 10000011 纪录中查询第 100000 页，每页 10 条纪录按升序和降序时间均为 0.38 秒，测试语法如下： exec GetRecordFromPage tbl_Briefness,I_BriefnessID,10,100000 ，其中在 tbl_Briefness 表 I_BriefnessID 字段上建立了索引。

/**/ /*
  经测试，在14483461 条记录中查询第100000 页，每页10 条记录按升序和降序第一次时间均为0.47 秒，第二次时间均为0.43 秒，测试语法如下：
  exec GetRecordFromPage news,newsid,10,100000
  news 为表名, newsid 为关键字段, 使用时请先对newsid 建立索引。

  函数名称: GetRecordFromPage
  函数功能: 获取指定页的数据
  参数说明: @tblName      包含数据的表名
           @fldName      关键字段名
           @PageSize     每页记录数
           @PageIndex    要获取的页码
           @OrderType    排序类型, 0 - 升序, 1 - 降序
           @strWhere     查询条件(注意: 不要加where)
  创建时间: 2004-07-04
  修改时间: 2008-02-13
*/
ALTER   PROCEDURE   [ dbo ] . [ GetRecordFromPage ]
     @tblName        varchar ( 255 ),        --  表名
     @fldName        varchar ( 255 ),        --  字段名
     @PageSize       int   =   10 ,            --  页尺寸
     @PageIndex      int   =   1 ,             --  页码
     @OrderType      bit   =   0 ,             --  设置排序类型, 非0 值则降序
     @IsCount   bit   =   0 ,  --  返回记录总数, 非0 值则返回
     @strWhere       varchar ( 2000 )  =   ''    --  查询条件(注意: 不要加where)
    
AS

declare   @strSQL     varchar ( 6000 )        --  主语句
declare   @strTmp     varchar ( 1000 )        --  临时变量
declare   @strOrder   varchar ( 500 )         --  排序类型

if   @OrderType   !=   0
begin
     set   @strTmp   =   ' <(select min '
     set   @strOrder   =   '  order by [ '   +   @fldName   +   ' ] desc '
end
else
begin
     set   @strTmp   =   ' >(select max '
     set   @strOrder   =   '  order by [ '   +   @fldName   + ' ] asc '
end

set   @strSQL   =   ' select top  '   +   str ( @PageSize )  +   '  * from [ '
     +   @tblName   +   ' ] where [ '   +   @fldName   +   ' ] '   +   @strTmp   +   ' ([ '
     +   @fldName   +   ' ]) from (select top  '   +   str (( @PageIndex - 1 ) * @PageSize )  +   '  [ '
     +   @fldName   +   ' ] from [ '   +   @tblName   +   ' ] '   +   @strOrder   +   ' ) as tblTmp) '
     +   @strOrder

if   @strWhere   !=   ''
     set   @strSQL   =   ' select top  '   +   str ( @PageSize )  +   '  * from [ '
         +   @tblName   +   ' ] where [ '   +   @fldName   +   ' ] '   +   @strTmp   +   ' ([ '
         +   @fldName   +   ' ]) from (select top  '   +   str (( @PageIndex - 1 ) * @PageSize )  +   '  [ '
         +   @fldName   +   ' ] from [ '   +   @tblName   +   ' ] where  '   +   @strWhere   +   '   '
         +   @strOrder   +   ' ) as tblTmp) and  '   +   @strWhere   +   '   '   +   @strOrder

if   @PageIndex   =   1
begin
     set   @strTmp   =   ''
     if   @strWhere   !=   ''
         set   @strTmp   =   '  where ( '   +   @strWhere   +   ' ) '

     set   @strSQL   =   ' select top  '   +   str ( @PageSize )  +   '  * from [ '
         +   @tblName   +   ' ] '   +   @strTmp   +   '   '   +   @strOrder
end
if   @IsCount   !=   0  
set   @strSQL   =   ' select count( '   +   @fldName   +   ' ) as Total from [ '   +   @tblName   +   ' ] '  
exec  ( @strSQL )

 

2.2分页控件的实现

2.2.1分页控件的详细代码

using  System;
using  System.Collections.Generic;
using  System.Text;
using  System.ComponentModel;
using  System.Web;
using  System.Web.UI;
using  System.Web.UI.WebControls;

namespace  CustomControls
... {
    [ToolboxData("<{0}:AspNetPager runat='server' PageSize='25' FirstPageText='首页' PrePageText='上一页' NextPageText='下一页' EndPageText='末页' ButtonText='GO'></{0}:AspNetPager>")]
    public class AspNetPager : WebControl, INamingContainer
    ...{
        属性块#region 属性块
        private object baseState = null;
        private object buttonStyleState = null;
        private object textBoxStyleState = null;
        private object labelStyleState = null;
        private object linkButtonStyleState = null;
        private LinkButton _lnkbtnFrist;
        private LinkButton _lnkbtnPre;
        private LinkButton _lnkbtnNext;
        private LinkButton _lnkbtnLast;
        private Label _lblCurrentPage;
        private Label _lblRecodeCount;
        private Label _lblPageCount;
        private Label _lblPageSize;
        private TextBox _txtPageIndex;
        private Button _btnChangePage;
        private static readonly object EventPageChange = new object();
        [Category("Pagination"), Description("每页显示的纪录数"),
        DefaultValue("25")]
        public virtual int PageSize
        ...{
            get
            ...{
                EnsureChildControls();
                return _lblPageSize.Text.Trim() != "" ? int.Parse(_lblPageSize.Text.Trim()) : 25;
            }
            set
            ...{
                EnsureChildControls();
                _lblPageSize.Text = value.ToString();
            }
        }
        [Category("Pagination"), Description("总纪录数"),
       DefaultValue("0"), Bindable(true)]
        public virtual int RecordCount
        ...{
            get
            ...{
                EnsureChildControls();
                return _lblRecodeCount.Text.Trim() != "" ? int.Parse(_lblRecodeCount.Text.Trim()) : 0;
            }
            set
            ...{
                EnsureChildControls();
                if (value > 0)
                ...{
                    int recodeCount = value;
                    _lblPageCount.Text = (value % PageSize == 0 ? value / PageSize : value / PageSize + 1).ToString();//计算总页数
                }
                _lblRecodeCount.Text = value.ToString();
            }
        }
        [Category("Pagination"), Description("当前页码"),
        DefaultValue("1"), Bindable(true)]
        public virtual int PageIndex
        ...{
            get
            ...{
                EnsureChildControls();
                return _lblCurrentPage.Text.Trim() != "" ? int.Parse(_lblCurrentPage.Text.Trim()) : 1;
            }
            set
            ...{
                EnsureChildControls();
                _lblCurrentPage.Text = value.ToString();
            }
        }
        [Category("Appearance"), Description("设置第一页的文本"),
        DefaultValue("首页"), Bindable(true)]
        public virtual string FirstPageText
        ...{
            get
            ...{
                EnsureChildControls();
                return _lnkbtnFrist.Text.Trim() != "" ? _lnkbtnFrist.Text.Trim() : "首页";
            }
            set
            ...{
                EnsureChildControls();
                _lnkbtnFrist.Text = value;
            }
        }
        [Category("Appearance"), Description("设置上一页的文本"),
        DefaultValue("上一页"), Bindable(true)]
        public virtual string PrePageText
        ...{
            get
            ...{
                EnsureChildControls();
                return _lnkbtnPre.Text.Trim() != "" ? _lnkbtnPre.Text.Trim() : "上一页";
            }
            set
            ...{
                EnsureChildControls();
                _lnkbtnPre.Text = value;
            }
        }
        [Category("Appearance"), Description("设置下一页的文本"),
       DefaultValue("下一页"), Bindable(true)]
        public virtual string NextPageText
        ...{
            get
            ...{
                EnsureChildControls();
                return _lnkbtnNext.Text.Trim() != "" ? _lnkbtnNext.Text.Trim() : "下一页";
            }
            set
            ...{
                EnsureChildControls();
                _lnkbtnNext.Text = value;
            }
        }
        [Category("Appearance"), Description("设置末页的文本"),
      DefaultValue("末页"), Bindable(true)]
        public virtual string EndPageText
        ...{
            get
            ...{
                EnsureChildControls();
                return _lnkbtnLast.Text.Trim() != "" ? _lnkbtnLast.Text.Trim() : "末页";
            }
            set
            ...{
                EnsureChildControls();
                _lnkbtnLast.Text = value;
            }
        }
        [Category("Appearance"), Description("设置跳转按钮的文本"),
      DefaultValue(":"), Bindable(true)]
        public virtual string ButtonText
        ...{
            get
            ...{
                EnsureChildControls();
                return _btnChangePage.Text.Trim() != "" ? _btnChangePage.Text.Trim() : "GO";
            }
            set
            ...{
                EnsureChildControls();
                _btnChangePage.Text = value;
            }
        }
        #endregion

        分页事件相关#region 分页事件相关
        public event EventHandler PageChanged
        ...{
            add
            ...{
                Events.AddHandler(EventPageChange, value);
            }
            remove
            ...{
                Events.RemoveHandler(EventPageChange, value);
            }

        }
        protected void OnPageChanged(EventArgs e)
        ...{
            EventHandler handler = (EventHandler)Events[EventPageChange];
            if (handler != null)
            ...{
                handler(this, e);
            }
        }
        #endregion

        样式属性#region 样式属性
        private Style _buttonStyle;
        private Style _textBoxStyle;
        private Style _linkButtonStyle;
        [
        Category("Styles"),
        DefaultValue(null),
        DesignerSerializationVisibility(
            DesignerSerializationVisibility.Content),
        PersistenceMode(PersistenceMode.InnerProperty),
        Description(
            "应用于按钮的样式")
        ]
        public virtual Style ButtonStyle
        ...{
            get
            ...{
                if (_buttonStyle == null)
                ...{
                    _buttonStyle = new Style();
                    if (IsTrackingViewState)
                    ...{
                        ((IStateManager)_buttonStyle).TrackViewState();
                    }
                }
                return _buttonStyle;
            }
        }
        [
       Category("Styles"),
       DefaultValue(null),
       DesignerSerializationVisibility(
           DesignerSerializationVisibility.Content),
       PersistenceMode(PersistenceMode.InnerProperty),
       Description(
           "应用于链接按钮的样式")
       ]
        public virtual Style LinkButtonStyle
        ...{
            get
            ...{
                if (_linkButtonStyle == null)
                ...{
                    _linkButtonStyle = new Style();
                    if (IsTrackingViewState)
                    ...{
                        ((IStateManager)_linkButtonStyle).TrackViewState();
                    }
                }
                return _linkButtonStyle;
            }
        }

        [
        Category("Styles"),
        DefaultValue(null),
        DesignerSerializationVisibility(
            DesignerSerializationVisibility.Content),
        PersistenceMode(PersistenceMode.InnerProperty),
        Description(
            "应用于文本框的样式")
        ]
        public virtual Style TextBoxStyle
        ...{
            get
            ...{
                if (_textBoxStyle == null)
                ...{
                    _textBoxStyle = new Style();
                    if (IsTrackingViewState)
                    ...{
                        ((IStateManager)_textBoxStyle).TrackViewState();
                    }
                }
                return _textBoxStyle;
            }
        }
        private Style _labelStyle;
        [
        Category("Styles"),
        DefaultValue(null),
        DesignerSerializationVisibility(
            DesignerSerializationVisibility.Content),
        PersistenceMode(PersistenceMode.InnerProperty),
        Description(
            "应用于标签的样式")
        ]
        public virtual Style LabelStyle
        ...{
            get
            ...{
                if (_labelStyle == null)
                ...{
                    _labelStyle = new Style();
                    if (IsTrackingViewState)
                    ...{
                        ((IStateManager)_labelStyle).TrackViewState();
                    }
                }
                return _labelStyle;
            }
        }
        #endregion

        自定义视图状态#region 自定义视图状态
        protected override void LoadViewState(object savedState)
        ...{
            if (savedState == null)
            ...{
                base.LoadViewState(null);
                return;
            }
            else
            ...{
                Triplet t = savedState as Triplet;

                if (t != null)
                ...{
                    base.LoadViewState(baseState);

                    if ((t.Second) != null)
                    ...{
                        ((IStateManager)ButtonStyle).LoadViewState(buttonStyleState);
                    }

                    if ((t.Third) != null)
                    ...{
                        ((IStateManager)TextBoxStyle).LoadViewState(textBoxStyleState);
                    }
                    if (labelStyleState != null)
                    ...{
                        ((IStateManager)(_labelStyle)).LoadViewState(labelStyleState);
                    }
                    if (linkButtonStyleState != null)
                    ...{
                        ((IStateManager)(_linkButtonStyle)).LoadViewState(linkButtonStyleState);
                    }
                }
                else
                ...{
                    throw new ArgumentException("Invalid view state .");
                }
            }
        }

        protected override object SaveViewState()
        ...{
            baseState = base.SaveViewState();
            buttonStyleState = null;
            textBoxStyleState = null;
            labelStyleState = null;
            linkButtonStyleState = null;
            if (_buttonStyle != null)
            ...{
                buttonStyleState =
                    ((IStateManager)_buttonStyle).SaveViewState();
            }

            if (_textBoxStyle != null)
            ...{
                textBoxStyleState =
                    ((IStateManager)_textBoxStyle).SaveViewState();
            }
            if (_labelStyle != null)
            ...{
                labelStyleState = ((IStateManager)_labelStyle).SaveViewState();
            }
            if (_linkButtonStyle != null)
            ...{
                linkButtonStyleState = ((IStateManager)_linkButtonStyle).SaveViewState();
            }
            return new Triplet(baseState,
                buttonStyleState, textBoxStyleState);

        }

        protected override void TrackViewState()
        ...{
            base.TrackViewState();
            if (_buttonStyle != null)
            ...{
                ((IStateManager)_buttonStyle).TrackViewState();
            }
            if (_textBoxStyle != null)
            ...{
                ((IStateManager)_textBoxStyle).TrackViewState();
            }
            if (_labelStyle != null)
            ...{
                ((IStateManager)_labelStyle).TrackViewState();
            }
            if (_linkButtonStyle != null)
            ...{
                ((IStateManager)_linkButtonStyle).TrackViewState();
            }
        }
        #endregion

        生成控件#region 生成控件
        protected override void CreateChildControls()
        ...{
            this.Controls.Clear();
            _btnChangePage = new Button();
            _btnChangePage.ID = "btnChangePage";
            _btnChangePage.Click += new EventHandler(BtnChangePage_Click);
            _lblCurrentPage = new Label();
            _lblCurrentPage.ID = "lblCurrentPage";
            _lblPageCount = new Label();
            _lblPageCount.ID = "lblPageCount";
            _lblRecodeCount = new Label();
            _lblRecodeCount.ID = "lblRecodeCount";
            _lnkbtnFrist = new LinkButton();
            _lnkbtnFrist.ID = "lnkbtnFrist";
            _lnkbtnFrist.Click += new EventHandler(lnkbtnFrist_Click);
            _lnkbtnLast = new LinkButton();
            _lnkbtnLast.ID = "lnkbtnLast";
            _lnkbtnLast.Click += new EventHandler(lnkbtnLast_Click);
            _lnkbtnNext = new LinkButton();
            _lnkbtnNext.ID = "lnkbtnNext";
            _lnkbtnNext.Click += new EventHandler(lnkbtnNext_Click);
            _lnkbtnPre = new LinkButton();
            _lnkbtnPre.ID = "lnkbtnPre";
            _lnkbtnPre.Click += new EventHandler(lnkbtnPre_Click);
            _txtPageIndex = new TextBox();
            _txtPageIndex.ID = "txtPageIndex";
            _lblPageSize = new Label();
            _lblPageSize.ID = "lblPageSize";
            this.Controls.Add(_btnChangePage);
            this.Controls.Add(_lblCurrentPage);
            this.Controls.Add(_lblPageCount);
            this.Controls.Add(_lblRecodeCount);
            this.Controls.Add(_lnkbtnFrist);
            this.Controls.Add(_lnkbtnLast);
            this.Controls.Add(_lnkbtnNext);
            this.Controls.Add(_lnkbtnPre);
            this.Controls.Add(_txtPageIndex);
            base.CreateChildControls();
        }
        #endregion

        按钮点击事件#region 按钮点击事件
        翻页相关的事件#region 翻页相关的事件
        /**//// <summary>
        /// 处理翻页事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void lnkbtnFrist_Click(object sender, EventArgs e) //第一页
        ...{
            _lblCurrentPage.Text = "1";
            OnPageChanged(EventArgs.Empty);
        }
        protected void lnkbtnPre_Click(object sender, EventArgs e) //上一页
        ...{
            int pageIndex = int.Parse(_lblCurrentPage.Text);
            if (pageIndex > 0)
            ...{
                pageIndex--;
                _lblCurrentPage.Text = pageIndex.ToString();
                OnPageChanged(EventArgs.Empty);
            }
        }
        protected void lnkbtnNext_Click(object sender, EventArgs e)//下一页
        ...{
            int pageIndex = int.Parse(_lblCurrentPage.Text);
            int pageCount = int.Parse(_lblPageCount.Text);
            if (pageIndex < pageCount)
            ...{
                pageIndex++;
                _lblCurrentPage.Text = pageIndex.ToString();
            }
            OnPageChanged(EventArgs.Empty);
        }
        protected void lnkbtnLast_Click(object sender, EventArgs e)//末页
        ...{
            _lblCurrentPage.Text = _lblPageCount.Text;
            OnPageChanged(EventArgs.Empty);
        }
        #endregion
        protected void BtnChangePage_Click(object sender, EventArgs e)//跳转到指定页
        ...{
            int pageIndex=0;
            try
            ...{
                pageIndex = int.Parse(_txtPageIndex.Text);
            }
            catch
            ...{
                System.Web.HttpContext.Current.Response.Write("<Script>alert('请输入正确的页数!');</script>");
                return;
            }
            int pageCount = int.Parse(_lblPageCount.Text);
            if (pageIndex == 0)//如果为0，则提示错误
            ...{
                System.Web.HttpContext.Current.Response.Write("<Script>alert('请输入正确的页数!');</script>");
                return;
            }
            if (pageIndex > pageCount)//如果大于总页数则提示错误
            ...{
                System.Web.HttpContext.Current.Response.Write("<Script>alert('请输入正确的页数!');</script>");
                return;
            }
            _lblCurrentPage.Text = pageIndex.ToString();
            OnPageChanged(EventArgs.Empty);
        }
        #endregion

        重写TagKey#region 重写TagKey
        protected override HtmlTextWriterTag TagKey
        ...{
            get
            ...{
                return HtmlTextWriterTag.Table;
            }
        }
        #endregion

        绘制控件#region 绘制控件
        protected override void RenderContents(HtmlTextWriter writer)
        ...{
            if (ButtonStyle != null)
            ...{
                _btnChangePage.ApplyStyle(ButtonStyle);
            }
            if (TextBoxStyle != null)
            ...{
                _txtPageIndex.ApplyStyle(TextBoxStyle);
            }
            if (LabelStyle != null)
            ...{
                _lblCurrentPage.ApplyStyle(LabelStyle);
                _lblPageCount.ApplyStyle(LabelStyle);
                _lblRecodeCount.ApplyStyle(LabelStyle);
                _lblPageSize.ApplyStyle(LabelStyle);
            }
            AddAttributesToRender(writer);
            writer.RenderBeginTag(HtmlTextWriterTag.Tr);
            writer.AddAttribute(HtmlTextWriterAttribute.Align, "right");
            writer.RenderBeginTag(HtmlTextWriterTag.Td);
            writer.Write("当前第");
            if (_lblCurrentPage != null)
                _lblCurrentPage.RenderControl(writer);
            writer.Write("页,每页");
            if (_lblPageSize != null)
            ...{
                _lblPageSize.RenderControl(writer);
            }
            writer.Write("条纪录,总共");
            if (_lblRecodeCount != null)
                _lblRecodeCount.RenderControl(writer);
            writer.Write("条纪录,共");
            if (_lblPageCount != null)
                _lblPageCount.RenderControl(writer);
            writer.Write("页&nbsp;&nbsp;[&nbsp;&nbsp;");
            if (_lnkbtnFrist != null)
            ...{
                if (PageIndex == 1) //如果是第一页，则第一页灰显，作用是避免不必要的点击造成没必要的数据传输
                ...{
                    _lnkbtnFrist.Enabled = false;
                }
                else
                ...{
                    _lnkbtnFrist.Enabled = true;
                }
                _lnkbtnFrist.RenderControl(writer);
            }
            writer.Write("&nbsp;");
            if (_lnkbtnPre != null)
            ...{
                if (PageIndex > 1) //如果当前页大于1，则上一页显示，否则灰显
                ...{
                    _lnkbtnPre.Enabled = true;
                }
                else
                ...{
                    _lnkbtnPre.Enabled = false;
                }
                _lnkbtnPre.RenderControl(writer);
            }
            writer.Write("&nbsp;");
            if (_lnkbtnNext != null)
            ...{
                if (_lblPageCount == null)
                ...{
                    _lnkbtnNext.Enabled = false;
                }
                else
                ...{
                    int pageCount = int.Parse(_lblPageCount.Text); //获取总页数
                    if (PageIndex < pageCount)//如果当前页小于总页数，则下一页显示，否则灰显
                    ...{
                        _lnkbtnNext.Enabled = true;
                    }
                    else
                    ...{
                        _lnkbtnNext.Enabled = false;
                    }
                }
                _lnkbtnNext.RenderControl(writer);
            }
            writer.Write("&nbsp;");
            if (_lnkbtnLast != null)
            ...{
                if (_lblPageCount == null)
                ...{
                    _lnkbtnLast.Enabled = false;
                }
                else
                ...{
                    int pageCount = int.Parse(_lblPageCount.Text); //获取总页数
                    if (PageIndex == pageCount)//如果当前页为最后一页，则末页灰显
                    ...{
                        _lnkbtnLast.Enabled = false;
                    }
                    else
                    ...{
                        _lnkbtnLast.Enabled = true;
                    }
                }
                _lnkbtnLast.RenderControl(writer);
            }
            writer.Write("&nbsp;&nbsp;]跳转到第");
            if (_txtPageIndex != null)
                _txtPageIndex.RenderControl(writer);
            writer.Write("页");
            if (_btnChangePage != null)
                _btnChangePage.RenderControl(writer);
            writer.RenderEndTag();
            writer.RenderEndTag();
            //base.RenderContents(writer);
        }
        #endregion
    }
}

2.3千万级数据分页实现

2.3.1 简介

这次分页我是用Gridview来实现的，测试时间没算，但基本上从10000011纪录中一次查询25条纪录，在10万页以内，时间花费 在1秒以内。使用其他控件比如DataGrid，DataList或者DataReapter应该花费的时间更短。

2.3.2 适用对象

服务器端控件Gridview，DataGrid，DataList，DataReapter等数据绑定控件

2.3.3 分页实现

分页效果图如下：

 

前台代码如下：

后台代码如下：

<% @ Page Language = " C# "  AutoEventWireup = " true "  CodeFile = " Demo.aspx.cs "  Inherits = " Demo "   %>

<% @ Register Assembly = " CustomControls "  Namespace = " CustomControls "  TagPrefix = " cc2 "   %>

<% @ Register Assembly = " MyLabel "  Namespace = " MyLabel "  TagPrefix = " cc1 "   %>




<! 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 > 无标题页 </ title >
      < link type = " text/css "  rel = " stylesheet "  href = " css/comm.css "   />  
</ head >
< body >
     < form id = " form1 "  runat = " server " >
     < div >
         & nbsp; & nbsp;
        < asp:GridView ID = " GridView1 "  runat = " server "   AllowPaging = " false "  AutoGenerateColumns = " False "  CellPadding = " 4 "  ForeColor = " #333333 "  GridLines = " None "  PagerSettings - Visible = " false "
                    Width = " 50% "  height = " 35 "    OnRowCommand = " GridView1_RowCommand "  DataKeyNames = " I_BriefnessID " >
          < FooterStyle BackColor = " #507CD1 "  Font - Bold = " True "  ForeColor = " White "   />
                     < RowStyle BackColor = " #EFF3FB "   />
                     < EditRowStyle BackColor = " #2461BF "   />
                     < SelectedRowStyle BackColor = " #D1DDF1 "  Font - Bold = " True "  ForeColor = " #333333 "   />   
                     < PagerStyle ForeColor = " White "  VerticalAlign = " Top "  BackColor = " Transparent "    />                  
                     < HeaderStyle BackColor = " #507CD1 "  Font - Bold = " True "  ForeColor = " White "   />
                     < AlternatingRowStyle BackColor = " White "   />
                     < Columns >
                         < asp:TemplateField HeaderText = " 序号 " >
                             < ItemTemplate >
                                 <% # Container.DataItemIndex + 1   %>
                             </ ItemTemplate >
                         </ asp:TemplateField >
                         < asp:BoundField DataField = " I_BriefnessID "  HeaderText = " ID "   />
                         < asp:BoundField DataField = " I_KMID "  HeaderText = " 科目 "   />
                         < asp:BoundField DataField = " C_Recno "  HeaderText = " 试题号 "   />          
                         < asp:BoundField DataField = " M_Title "  HeaderText = " 题面 "   />
                         < asp:BoundField DataField = " C_Answer "  HeaderText = " 答案 "   />   
                           < asp:TemplateField HeaderText = " 删除 " >
                             < ItemTemplate >                                  
                                    < asp:LinkButton ID = " LinkButton1 "   OnClientClick = " return confirm('确定要删除?'); "  runat = " server "
                                    CausesValidation = " False "  CommandName = " DeleteData "   CommandArgument = ' <%#DataBinder.Eval(Container.DataItem,"I_BriefnessID").ToString()%> '  Text = " 删除 "   ></ asp:LinkButton >
                             </ ItemTemplate >
                         </ asp:TemplateField >
                     </ Columns >
         </ asp:GridView >
     </ div >
     < div >
         < cc2:AspNetPager ID = " AspNetPager1 "  runat = " server "  ButtonText = " GO "  EndPageText = " 末页 "
            FirstPageText = " 首页 "  NextPageText = " 下一页 "  PageSize = " 15 "  PrePageText = " 上一页 "   OnPageChanged = " Page_Changed "  Width = " 50% " >
             < ButtonStyle CssClass = " btn1_mouseout "  Width = " 30px "   />
             < TextBoxStyle Width = " 30px "  CssClass = " blue_rounded " />
             < LabelStyle ForeColor = " red "   Font - Bold = " true "   />
         </ cc2:AspNetPager >
         & nbsp; & nbsp;
         </ div >
     </ form >
</ body >
</ html >

 

 

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;

public   partial   class  Demo : System.Web.UI.Page
... {
    protected void Page_Load(object sender, EventArgs e)
    ...{
        if (!Page.IsPostBack)
        ...{
            TestDataCount();
            BindPaperDefineProgramme(1);
        }
        
    }

    绑定试卷定义方案列表#region 绑定试卷定义方案列表
    /**//// <summary>
    /// 统计该表的所有纪录
    /// </summary>
    private void TestDataCount()
    ...{
        DataTable dt = null;
        try
        ...{
            //public static DataTable GetTestData(string tableName, int pageSize, int pageIndex,string columnName,bool isCount)
            //第一个参数为要查询的表，第二个参数为每页的纪录数，第三个为页码，这里初始化为第1页，第四个参数为表的字段
            //，第五个参数为是否返回纪录总数，这里为true表示返回纪录总数
            dt = ExecProc.GetTestData("tbl_Briefness", AspNetPager1.PageSize, 1, "I_BriefnessID", true);
        }
        catch (Exception ex)
        ...{
            Response.Write(ex.Message);
            return;
        }
        if (dt.Rows.Count != 0)
        ...{
            AspNetPager1.RecordCount = int.Parse(dt.Rows[0]["Total"].ToString());
            AspNetPager1.PageIndex = 1;//初始化当前页为第一页
        }

    }
    #endregion

    protected void Page_Changed(object sender, EventArgs e)
    ...{
        BindPaperDefineProgramme(AspNetPager1.PageIndex);
    }

    删除纪录#region 删除纪录
    /**//// <summary>
    /// 删除纪录
    /// </summary>
    /// <param name="sender"></param>
    protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    ...{

        if (e.CommandName == "Delete")
        ...{
            string pagerID = GridView1.DataKeys[Convert.ToInt32(e.CommandArgument)].Value.ToString();
            int flag = 0;
            try
            ...{
                flag = ExecProc.DeleteData(int.Parse(pagerID));
            }
            catch (Exception ex)
            ...{
            }
            if (flag != 0)
            ...{
                Response.Write("<script>alert('删除成功!');</script>");
                TestDataCount();
                BindPaperDefineProgramme(1);
            }
            else
            ...{
                Response.Write("<script>alert('删除失败!');</script>");
                BindPaperDefineProgramme(AspNetPager1.PageIndex);
            }
        }
    }
    #endregion

    绑定试卷定义方案列表#region 绑定试卷定义方案列表
    /**//// <summary>
    /// 根据当前页码查询需要的数据
    /// </summary>
    /// <param name="pageIndex">页码</param>
    private void BindPaperDefineProgramme(int pageIndex)
    ...{
        DataTable dt = null;
        try
        ...{
            dt = ExecProc.GetTestData("tbl_Briefness", AspNetPager1.PageSize, pageIndex, "I_BriefnessID", false); //根据页码查询需要的纪录
        }
        catch (Exception ex)
        ...{
            Response.Write(ex.Message);
            return;
        }
        if (dt.Rows.Count == 0)
        ...{
            GridView1.Visible = false;
        }
        else
        ...{
            GridView1.Visible = true;
            GridView1.DataSource = dt;
            GridView1.DataBind();
        }

    }
    #endregion
}