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
分页事件相关分页事件相关#region 分页事件相关
public event EventHandler PageChanged
......{
add
......@H_502_3083@{
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"),
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"),
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
生成控件生成控件#region 生成控件
protected override void CreateChildControls()
...@H_912_5020@...@H_16_5022@{
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
按钮点击事件按钮点击事件#region 按钮点击事件
翻页相关的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重写TagKey#region 重写TagKey
protected override HtmlTextWriterTag TagKey
......{
get
......{
return HtmlTextWriterTag.Table;
}
}
#endregion
绘制控件绘制控件#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 [ ");
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(" ");
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(" ");
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(" ");
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(" ]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", pageIndex, 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
}
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