通用分页控件(DataGrid,DataList,Repeater都可以用它来分页)
1.建立用户控件Pager.ascx
1.1 html
<script language="javascript">
function callButtonEvent()
{
var keycode =window.event.keyCode;
if(keycode==13)
{
if(check()==true)
{
event.cancelBubble=true;
event.returnValue=false;
document.getElementById('<%=btnGo.ClientID%>').click();
}
}
}
function check()
{
var count = parseInt(document.getElementById('<%=lblTotal.ClientID%>').outerText);
var txt = document.getElementById('<%=txtCurrentPage.ClientID%>').value;
var cur = parseInt(txt);
if ((cur | NaN) ==0)
{
alert('Input page must format as integer.');
event.cancelPostBack=true;
return false;
}
if (cur > count || cur < 1)
{
alert('Input page no out of range.');
event.cancelPostBack=true;
return false;
}
}
</script>
<TABLE ID="Table1" CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0">
<colgroup>
<col width="400">
<col width="50">
<col width="50">
<col width="40">
<col width="20">
<col width="40">
<col width="40">
<col width="50">
<col width="70">
</colgroup>
<TR align="right">
<td></td>
<TD><asp:LinkButton id="btnFirstPage" runat="server" CommandArgument="First">第一页</asp:LinkButton></TD>
<TD><asp:LinkButton id="btnPrevPage" runat="server" CommandArgument="Prev">上一页</asp:LinkButton></TD>
<TD><ASP:TEXTBOX ID="txtCurrentPage" RUNAT="server" MAXLENGTH="3" Width="40">0</ASP:TEXTBOX></TD>
<TD><ASP:LABEL ID="labOf" RUNAT="server">of</ASP:LABEL></TD>
<TD><ASP:LABEL ID="lblTotal" RUNAT="server">0</ASP:LABEL></TD>
<TD><ASP:BUTTON ID="btnGo" RUNAT="server" TEXT="转到" COMMANDARGUMENT="Go" ToolTip="转到"></ASP:BUTTON></TD>
<TD><asp:LinkButton id="btnNextPage" runat="server" CommandArgument="Next">下一页</asp:LinkButton></TD>
<TD><asp:LinkButton id="btnLastPage" runat="server" CommandArgument="Last">最后一页</asp:LinkButton></TD>
</TR>
</TABLE>
1.2 cs代码
public class Pager : System.Web.UI.UserControl
{
protected System.Web.UI.WebControls.Label lblTotal;
protected System.Web.UI.WebControls.Label labOf;
protected System.Web.UI.WebControls.TextBox txtCurrentPage;
protected System.Web.UI.WebControls.Button btnGo;
protected System.Web.UI.WebControls.LinkButton btnFirstPage;
protected System.Web.UI.WebControls.LinkButton btnPrevPage;
protected System.Web.UI.WebControls.LinkButton btnNextPage;
protected System.Web.UI.WebControls.LinkButton btnLastPage;
int size=10;//可以在web.config中配置
public event System.EventHandler NavigationClick;
private void Page_Load(object sender, System.EventArgs e)
{
this.txtCurrentPage.Attributes.Add("onkeypress","callButtonEvent();");
this.btnGo.Attributes.Add("onclick","check();");
if(!this.IsPostBack)
{
SetStyle();
SetEnable();
}
}
Web Form Designer generated code#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
this.btnFirstPage.Click += new System.EventHandler(this.btnGo_Click);
this.btnPrevPage.Click += new System.EventHandler(this.btnGo_Click);
this.btnNextPage.Click += new System.EventHandler(this.btnGo_Click);
this.btnLastPage.Click += new System.EventHandler(this.btnGo_Click);
this.btnGo.Click += new System.EventHandler(this.btnGo_Click);
}
/**//// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
btnGo_Click#region btnGo_Click
private void btnGo_Click(object sender, System.EventArgs e)
{
LinkButton linkbtn = sender as LinkButton;
if( null == linkbtn )//button
{
Button btn = sender as Button;
if( null == btn )
{
return;
}
else
{
int selPage = -1;
try
{
selPage =Int32.Parse(txtCurrentPage.Text);
}
catch
{
selPage = -1;
}
if (selPage > 0 && selPage <= PageCount)
{
ViewState["CurrentPageIndex"] = selPage;
}
else
{
return;
}
}
}
else//linkbutton
{
switch ( linkbtn.CommandArgument.Trim() )
{
case "First":
ViewState["CurrentPageIndex"] = 1;
break;
case "Prev":
ViewState["CurrentPageIndex"] = (CurrentPageIndex > 1) ? CurrentPageIndex - 1 : 1;
break;
case "Next":
ViewState["CurrentPageIndex"] = (PageCount > CurrentPageIndex) ? CurrentPageIndex + 1 : PageCount;
break;
case "Last":
ViewState["CurrentPageIndex"] = PageCount;
break;
default:
break;
}
}
SetEnable();//设置显示样式
if (NavigationClick!=null)//调用事件
{
NavigationClick( sender,e );
}
}
#endregion
SetStyle#region SetStyle
private void SetStyle()
{
this.btnFirstPage.Attributes["style"] = "CURSOR: hand";
this.btnLastPage.Attributes["style"] = "CURSOR: hand";
this.btnNextPage.Attributes["style"] = "CURSOR: hand";
this.btnPrevPage.Attributes["style"] = "CURSOR: hand";
}
#endregion
SetEnable#region SetEnable
// 应根据当前的CurrentPageIndex和pageCount设定哪些按钮可用
private void SetEnable()
{
this.lblTotal.Text = PageCount.ToString();
txtCurrentPage.Text =CurrentPageIndex.ToString();
btnPrevPage.Enabled = false;
btnNextPage.Enabled = false;
if( PageCount >1 )
{
btnFirstPage.Enabled = btnPrevPage.Enabled = ( CurrentPageIndex >1 );
btnNextPage.Enabled = btnLastPage.Enabled = ( CurrentPageIndex < PageCount );
}
else
{
btnFirstPage.Enabled = false;
btnLastPage.Enabled = false;
btnPrevPage.Enabled = false;
btnNextPage.Enabled = false;
}
}
#endregion
Property#region Property
//获取或设置当前显示页的索引。
public int CurrentPageIndex
{
get
{
object cpage=ViewState["CurrentPageIndex"];
int pindex=(cpage==null)?1:(int)cpage;
if(pindex>PageCount&&PageCount>0)
return PageCount;
else if(pindex<1)
return 1;
return pindex;
}
set
{
int cpage=value;
if(cpage<1)
cpage=1;
else if(cpage>this.PageCount)
cpage=this.PageCount;
ViewState["CurrentPageIndex"]=cpage;
}
}
// 获取或设置需要分页的所有记录的总数。
public int RecordCount
{
get
{
object obj=ViewState["Recordcount"];
return (obj==null)?0:(int)obj;
}
set
{
ViewState["Recordcount"]=value;
SetEnable();
}
}
// 获取当前页之后的页的总数。
public int PagesRemain
{
get
{
return PageCount-CurrentPageIndex;
}
}
// 获取或设置每页显示的项数。
public int PageSize
{
get
{
object obj=ViewState["PageSize"];
if (obj==null)
{
obj= size;
}
return (obj==null)?size:(int)obj;
}
set
{
int pageSize = value;
if (Math.Abs(pageSize) == 0)
pageSize = size;
ViewState["PageSize"]=pageSize;
}
}
// 获取在当前页之后还未显示的剩余记录的项数。
public int RecordsRemain
{
get
{
if(CurrentPageIndex<PageCount)
{
return RecordCount-(CurrentPageIndex*PageSize);
}
else
{
return 0;
}
}
}
// 获取所有要分页的记录需要的总页数。
public int PageCount
{
get{return (RecordCount > 0) ? (int)Math.Ceiling((double)RecordCount/(double)PageSize) : 1;}
}
public int XRecord
{
get
{
return int.Parse( System.Configuration.ConfigurationSettings.AppSettings["XRecord"].Trim() );
}
}
#endregion Property
}
2.建立DataGridPage.aspx
3.copy如下html代码
<HTML>
<HEAD>
<title>DataGridPage</title>
<meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
<meta content="C#" name="CODE_LANGUAGE">
<meta content="JavaScript" name="vs_defaultClientScript">
<meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<asp:datagrid id="DataGrid1" style="Z-INDEX: 101; LEFT: 632px; POSITION: absolute; TOP: 40px"
runat="server"></asp:datagrid><uc1:pager id="Pager1" runat="server"></uc1:pager><asp:datalist id="DataList1" style="Z-INDEX: 102; LEFT: 264px; POSITION: absolute; TOP: 40px"
runat="server">
<ItemTemplate>
<table>
<tr>
<td>用户ID:</td>
<td><%# DataBinder.Eval(Container.DataItem, "UserID") %></td>
<td>用户名:</td>
<td><%# DataBinder.Eval(Container.DataItem, "UserName") %></td>
</tr>
</table>
</ItemTemplate>
</asp:datalist>
<asp:repeater id="Repeater1" runat="server">
<HEADERTEMPLATE>
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td>用户ID</td>
<td>用户名:</td>
</tr>
</HEADERTEMPLATE>
<ITEMTEMPLATE>
<tr>
<td>
<%# DataBinder.Eval(Container.DataItem, "UserID")%>
</td>
<td><%# DataBinder.Eval(Container.DataItem, "UserName") %></td>
</tr>
</ITEMTEMPLATE>
<FOOTERTEMPLATE>
</table>
</FOOTERTEMPLATE>
</asp:repeater></form>
</body>
</HTML>
4.拖入用户控件Pager.ascx
5.copy如下cs代码
public class DataGridPage : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid DataGrid1;
protected UserControl.Pager Pager1;//定义用户控件，根据用户控件所在目录做适当的调整
protected System.Web.UI.WebControls.DataList DataList1;
protected System.Web.UI.WebControls.Repeater Repeater1;
public static string ConnectionString=System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"];
private void Page_Load(object sender, System.EventArgs e)
{
if (!this.IsPostBack)
{
BindData();
}
}
Bind Data#region Bind Data
private void BindData()
{
int output=0;
this.SortExpression="UserID asc";
this.FilterExpression="1=1";
ds = GetList(this.Pager1.CurrentPageIndex,this.Pager1.PageSize,this.SortExpression,this.FilterExpression,ref output);
if (ds!=null && ds.Tables.Count>0)
{
//DataGrid分页
DataGrid1.DataSource = ds.Tables[0];
DataGrid1.DataBind();
//DataList分页
DataList1.DataSource=ds.Tables[0];
DataList1.DataBind();
//Repeater分页
Repeater1.DataSource=ds.Tables[0];
Repeater1.DataBind();
}
Pager1.RecordCount=output;
}
#endregion
ExecSPDataSet#region ExecSPDataSet
public static DataSet ExecSPDataSet(string sql,System.Data.IDataParameter[] paramers)
{
SqlConnection conn=new SqlConnection(ConnectionString);
SqlCommand sqlcom=new SqlCommand(sql,conn);
sqlcom.CommandType= CommandType.StoredProcedure ;
foreach(System.Data.IDataParameter paramer in paramers)
{
sqlcom.Parameters.Add(paramer);
}
conn.Open();
SqlDataAdapter da=new SqlDataAdapter();
da.SelectCommand=sqlcom;
DataSet ds=new DataSet();
da.Fill(ds);
conn.Close();
return ds;
}
#endregion
GetList#region GetList
public static DataSet GetList(int page_num,int row_in_page,string order_column,string comb_condition,ref int output)
{
string sql="tp_Fetch_List";
System.Data.SqlClient.SqlParameter[] p=new SqlParameter[5];
p[0]=new SqlParameter();
p[0].ParameterName ="@page_num";
p[0].Value =page_num;
p[0].DbType=System.Data.DbType.Int32;
p[1]=new SqlParameter();
p[1].ParameterName ="@row_in_page";
p[1].Value =row_in_page;
p[1].DbType=System.Data.DbType.Int32;
p[2]=new SqlParameter();
p[2].ParameterName ="@order_column";
p[2].Value =order_column;
p[2].DbType=System.Data.DbType.String;
p[3]=new SqlParameter();
p[3].ParameterName ="@row_total";
p[3].Direction=System.Data.ParameterDirection.Output;
p[3].DbType=System.Data.DbType.Int32;
p[4]=new SqlParameter();
p[4].ParameterName ="@comb_condition";
p[4].Value =comb_condition;
p[4].DbType=System.Data.DbType.String;
DataSet ds=ExecSPDataSet(sql,p);
if (p[3].Value!=DBNull.Value && p[3].Value.ToString()!=string.Empty )
output=Convert.ToInt32(p[3].Value);
return ds;
}
#endregion
property#region property
private DataSet ds
{
get
{
return ViewState["ds"] as DataSet;
}
set
{
ViewState["ds"] = value;
}
}
public string FilterExpression
{
get
{
if (this.ViewState["FilterExpression"]!=null)
return (string)this.ViewState["FilterExpression"];
return string.Empty ;
}
set
{
this.ViewState["FilterExpression"]=value;
}
}
public string SortExpression
{
get
{
if (this.ViewState["SortExpression"]!=null)
return (string)this.ViewState["SortExpression"];
return string.Empty ;
}
set
{
this.ViewState["SortExpression"]=value;
}
}
#endregion
Web Form Designer generated code#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
this.Pager1.NavigationClick+=new EventHandler(Pager1_NavigationClick);
}
/**//// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void Pager1_NavigationClick(object sender, EventArgs e)
{
BindData();
}
}
6.测试表结构
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[TestGrid]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[TestGrid]
GO
CREATE TABLE [dbo].[TestGrid] (
[UserID] [int] NOT NULL ,
[UserName] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[Country] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[State] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[Enabled] [bit] NULL
) ON [PRIMARY]
GO
7.测试存储过程
create PROCEDURE tp_Fetch_List(
@page_num INT,
@row_in_page INT,
@order_column VARCHAR(50),
@row_total INT OUTPUT,
@comb_condition VARCHAR(500)
)
AS
BEGIN
SET NOCOUNT ON
DECLARE
@jcc_status INT,
@sql NVARCHAR(4000),
@row_ahead INT
SET @jcc_status = 0
SET @row_ahead = (@page_num-1) * @row_in_page
SET @sql='SELECT TOP '+ cast(@row_in_page as varchar(255)) + ' * FROM ( '
SET @sql = @sql + 'SELECT *
FROM TestGrid
) as A where 1=1'
IF LEN(@comb_condition)>0
SET @sql = @sql + ' AND (' + @comb_condition + ')'
SET @sql = @sql + 'and UserID not in ( select UserID from ('
SET @sql = @sql + 'SELECT TOP ' + cast(@row_ahead as varchar(255)) + ' * From ('
SET @sql = @sql + 'SELECT *
FROM TestGrid
) as A where 1=1'
IF LEN(@comb_condition)>0
SET @sql = @sql + ' AND ( ' + @comb_condition + ' )'
IF LEN(@order_column)>0
BEGIN
SET @sql = @sql + ' ORDER BY ' + @order_column + ' ) AS B )'
END
ELSE
BEGIN
SET @sql = @sql + ' ) AS B )'
END
IF LEN(@order_column)>0
BEGIN
SET @sql = @sql + ' ORDER BY ' + @order_column
END
print @sql
EXEC (@sql)
SET @sql= N'SELECT @row_total=COUNT(*) FROM ('
SET @sql = @sql + 'SELECT *
FROM TestGrid
) as A where 1=1'
IF LEN(@comb_condition)>0
SET @sql = @sql + ' AND (' + @comb_condition + ')'
print @sql
EXEC sp_executesql @sql,N'@row_total INT OUT',@row_total OUT
IF @@ERROR != 0
BEGIN
SELECT @jcc_status = -98
END
exit_bk:
-- exit with MS SQL Server error
IF @jcc_status = -98
BEGIN
RAISERROR ('MS SQL Server error, please contact your system administrator.',16,1)WITH NOWAIT
RETURN (@jcc_status)
END
-- normal exit
RETURN (0)
END
GO
-- declare @aa int
-- exec tp_Fetch_List 1,10,'',@aa out ,'1=1'
-- select @aa
8.源代码下载/Files/singlepine/DataGridPage.rar
