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asp.net 源码保存 用程序分页实现代码。
源码：
复制代码 代码如下:
namespace Alex
{
public class PageTools
{
/// <summary>
/// 表名称
/// </summary>
private string tableName;
public string TableName
{
get { return tableName; }
set { tableName = value; }
}
/// <summary>
/// 返回的列名
/// </summary>
private string returnColumns;
public string ReturnColumns
{
get { return returnColumns; }
set { returnColumns = value; }
}
/// <summary>
/// 条件
/// </summary>
private string where;
public string Where
{
get { return where; }
set { where = value; }
}
/// <summary>
/// 排序列
/// </summary>
private string orderColumnName;
public string OrderColumnName
{
get { return orderColumnName; }
set { orderColumnName = value; }
}
/// <summary>
/// 排序，true为降序
/// </summary>
private Boolean orderDesc;
public Boolean OrderDesc
{
get { return orderDesc; }
set { orderDesc = value; }
}
/// <summary>
/// 主键
/// </summary>
private string keyColumnName;
public string KeyColumnName
{
get { return keyColumnName; }
set { keyColumnName = value; }
}
/// <summary>
/// 页面大小
/// </summary>
private Int32 pageSize;
public Int32 PageSize
{
get { return pageSize; }
set { pageSize = value; }
}
/// <summary>
/// 第几页
/// </summary>
private Int32 pageIndex;
public Int32 PageIndex
{
get { return pageIndex; }
set { pageIndex = value; }
}
/// <summary>
/// SQL参数
/// </summary>
private SqlParameter[] whereParams;
public SqlParameter[] WhereParams
{
get { return whereParams; }
set { whereParams = value; }
}
/// <param name="TableName"></param>
/// <param name="ReturnColumns"></param>
/// <param name="Where">条件</param>
/// <param name="OrderColumnName">排序列</param>
/// <param name="OrderDesc">排序，true为降序</param>
/// <param name="KeyColumnName">主键</param>
/// <param name="PageSize">页面大小</param>
/// <param name="PageIndex">第几页</param>
/// <param name="WhereParams">SQL参数</param>
public PageTools(string tableName, string returnColumns, string where, string orderColumnName, Boolean orderDesc,
string keyColumnName, Int32 pageSize, Int32 pageIndex, params SqlParameter[] whereParams)
{
this.TableName = tableName;
this.ReturnColumns = returnColumns;
this.Where = where;
this.OrderColumnName = orderColumnName;
this.OrderDesc = orderDesc;
this.KeyColumnName = keyColumnName;
this.PageSize = pageSize;
this.PageIndex = pageIndex;
this.WhereParams = WhereParams;
}
public PageTools() { }
public DataTable RetrievePagerData()
{
if (pageIndex == 1)
{
return RetrieveTopData();
}
else
{
string sql = string.Format("select top {0} {1} from {2} where {3} and {6} not in ( select top {7} {6} from {2} where {3} order by {4} {5} ) order by {4} {5}", pageSize, returnColumns, tableName, where, orderColumnName, orderDesc == true ? "desc" : string.Empty, keyColumnName, pageSize * (pageIndex - 1));
return DbHelperSQL.Query(sql, CheckNull(whereParams)).Tables[0];
}
}
/// <summary>
/// 获取数据的条数
/// </summary>
/// <param name="TableName"></param>
/// <param name="Where"></param>
/// <param name="WhereParams"></param>
/// <returns></returns>
public Int32 RetrieveDataCount()
{
string sql = string.Format("select count(*) from {0} where {1}" , tableName, where);
Int32 result = (Int32)DbHelperSQL.GetSingle(sql, CheckNull(whereParams));
return result;
}
/// <summary>
/// 获取第一页
/// </summary>
/// <param name="top"></param>
/// <param name="TableName"></param>
/// <param name="ReturnColumns"></param>
/// <param name="Where"></param>
/// <param name="OrderColumnName"></param>
/// <param name="OrderDesc"></param>
/// <param name="WhereParams"></param>
/// <returns></returns>
public DataTable RetrieveTopData()
{
string sql = string.Format("select top {0} {1} from {2} where {3} order by {4} {5}", pageSize, returnColumns, tableName, where, orderColumnName, orderDesc == true ? "desc" : string.Empty);
return DbHelperSQL.Query(sql, whereParams).Tables[0];
}
/// <summary>
/// 移除空参数
/// </summary>
/// <param name="WhereParams"></param>
/// <returns></returns>
private SqlParameter[] CheckNull(SqlParameter[] paras)
{
if (paras == null)
{
return null;
}
List<SqlParameter> list = new List<SqlParameter>();
foreach (SqlParameter para in paras)
{
if (para != null) list.Add(para);
}
return list.ToArray();
}
}
}
页面后台：
复制代码 代码如下:
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
recordCount = page.RetrieveDataCount();
totalPages = (int)(Math.Ceiling((double)recordCount / (double)page.PageSize));
if (!IsPostBack)
{
BindData();
}
}
Alex.PageTools page = new Alex.PageTools("Test", "*", "1=1", "USER_Account", false, "USER_Account", 10, 1, null);
int recordCount;
public int totalPages;
private void BindData()
{
int pageIndex = SmartGridView1.PageIndex;
if(totalPages>0)
{
if(pageIndex>totalPages-1)
{
pageIndex=totalPages-1;
}
}
else
{
pageIndex=0;
}
SmartGridView1.PageIndex=pageIndex;
page.PageIndex=pageIndex+1;
SmartGridView1.DataSource = page.RetrievePagerData();
SmartGridView1.DataBind();
if (this.SmartGridView1.PageIndex == 0)
{
this.btnFirst.Enabled = false;
this.btnPrev.Enabled = false;
if (totalPages == 1)
{
this.btnLast.Enabled = false;
this.btnNext.Enabled = false;
}
}
else if (this.SmartGridView1.PageIndex == totalPages - 1)
{
this.btnLast.Enabled = false;
this.btnNext.Enabled = false;
}
this.lblpagesum.Text = totalPages.ToString();
this.lblpage.Text = (pageIndex + 1).ToString();
this.lblrowscount.Text = recordCount.ToString();
}
public void NavigateToPage(object sender, CommandEventArgs e)
{
btnFirst.Enabled = true;
btnPrev.Enabled = true;
btnNext.Enabled = true;
btnLast.Enabled = true;
string pageinfo = e.CommandArgument.ToString();
switch (pageinfo)
{
case "Prev":
if (this.SmartGridView1.PageIndex > 0)
{
this.SmartGridView1.PageIndex -= 1;
}
break;
case "Next":
if (this.SmartGridView1.PageIndex < (totalPages - 1))
{
this.SmartGridView1.PageIndex += 1;
}
break;
case "First":
this.SmartGridView1.PageIndex = 0;
break;
case "Last":
this.SmartGridView1.PageIndex = totalPages - 1;
break;
}
if (this.SmartGridView1.PageIndex == 0)
{
btnFirst.Enabled = false;
btnPrev.Enabled = false;
if (totalPages == 1)
{
btnLast.Enabled = false;
btnNext.Enabled = false;
}
}
else if (this.SmartGridView1.PageIndex == totalPages - 1)
{
btnLast.Enabled = false;
btnNext.Enabled = false;
}
BindData();
}
protected void gobtnClick(object sender, EventArgs e)
{
int goPageIndex = Convert.ToInt32(this.goCount.Text.Trim());
if (goPageIndex > 0)
{
if (goPageIndex >= totalPages)
{
this.SmartGridView1.PageIndex = totalPages - 1;
}
else
{
this.SmartGridView1.PageIndex = goPageIndex - 1;
}
}
else if(goPageIndex <=0)
{
this.SmartGridView1.PageIndex = 0;
}
if (this.SmartGridView1.PageIndex == 0)
{
btnFirst.Enabled = false;
btnPrev.Enabled = false;
btnLast.Enabled = true;
btnNext.Enabled = true;
if (totalPages == 1)
{
btnLast.Enabled = false;
btnNext.Enabled = false;
}
}
else if (this.SmartGridView1.PageIndex == totalPages - 1)
{
btnLast.Enabled = false;
btnNext.Enabled = false;
btnFirst.Enabled = true;
btnPrev.Enabled = true;
}
else
{
btnLast.Enabled = true;
btnFirst.Enabled = true;
btnNext.Enabled = true;
btnPrev.Enabled = true;
}
BindData();
}
页面前台：
代码
复制代码 代码如下:
<%@ Page Language="C#" Theme="msn_blue" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="SmartGridView" Namespace="BOSSWWebUI.SmartGridView" TagPrefix="uc1" %>
<!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></title>
</head>
<body>
<script type="text/javascript">
function validate() {
var gocount=document.getElementById("goCount").value;
if(gocount=="")
{
alert("请先填写你要导航的页面");
return false;
}
var result;
if(isNaN(gocount))
{
alert("请输入合法的数字");
document.getElementById("goCount").value="";
return false;
}
if(parseInt(gocount)<=0|| parseInt(gocount)><%=this.totalPages %>)
{
alert("数字溢出");
document.getElementById("goCount").value="";
return false;
}
return true;
}
</script>
<form id="form1" runat="server">
<div>
<table cellspacing="0" cellpadding="0" width="98%" align="center" border="0">
<tr id="TrGrid" runat="server">
<td align="left">
○ 页次：<asp:Label ID="lblpage" runat="server" ></asp:Label>/
<asp:Label ID="lblpagesum" runat="server"></asp:Label>，共：<asp:Label
ID="lblrowscount" runat="server"></asp:Label>条</td>
<td align="right">
<asp:LinkButton ID="btnFirst" runat="server" OnCommand="NavigateToPage"
CommandArgument="First" CommandName="Pager" Text="首 页">[首 页]</asp:LinkButton><asp:LinkButton
ID="btnPrev" runat="server" CommandArgument="Prev" OnCommand="NavigateToPage"
CommandName="Pager" Text="上一页">[上一页]</asp:LinkButton><asp:LinkButton ID="btnNext"
runat="server" CommandArgument="Next" OnCommand="NavigateToPage"
CommandName="Pager" Text="下一页">[下一页]</asp:LinkButton><asp:LinkButton ID="btnLast"
runat="server" CommandArgument="Last" OnCommand="NavigateToPage"
CommandName="Pager" Text="尾 页" >[尾 页]</asp:LinkButton>
<asp:TextBox ID=goCount runat="server" Width="50px"></asp:TextBox>
<asp:Button ID="gobtn" runat="server" Text="go" OnClientClick="return validate();" OnClick="gobtnClick" /></td>
</tr>
</table>
<table cellspacing="0" cellpadding="0" width="98%" align="center" border="0">
<tr>
<td>
<uc1:SmartGridView ID="SmartGridView1" SkinID="blue" runat="server"
PagingStyle="Default"
CssClassMouseOver="grid_over" EnableViewState="False"
AutoGenerateColumns="False"
Width="100%" currentLanguage="">
<Columns>
<asp:TemplateField>
<headertemplate>
<asp:checkbox id="HeadCheckBox" runat="server" />
</headertemplate>
<itemtemplate>
<asp:checkbox id="checkitem" runat="server" __designer:wfdid="w1"></asp:checkbox>
</itemtemplate>
<headerstyle cssclass="tdcell" />
<itemstyle horizontalalign="Center" width="5px" cssclass="tdcell" />
</asp:TemplateField>
<asp:BoundField DataField="USER_Account" HeaderText="用户帐号" SortExpression="USER_Account">
<headerstyle cssclass="tdcell" />
<itemstyle horizontalalign="Center" cssclass="tdcell" />
</asp:BoundField>
<asp:BoundField DataField="USER_DspName" HeaderText="显示名称" SortExpression="USER_DspName">
<headerstyle cssclass="tdcell" />
<itemstyle horizontalalign="Center" cssclass="tdcell" />
</asp:BoundField>
<asp:BoundField DataField="USER_DspEngName" HeaderText="英文名" SortExpression="USER_DspEngName" >
<headerstyle cssclass="tdcell" />
<itemstyle cssclass="tdcell" horizontalalign="Center" />
</asp:BoundField>
<asp:BoundField DataField="USER_HRID" HeaderText="员工号" SortExpression="USER_HRID" >
<headerstyle cssclass="tdcell" />
<itemstyle cssclass="tdcell" horizontalalign="Center" />
</asp:BoundField>
<asp:BoundField DataField="USER_Email" HeaderText="邮件地址" SortExpression="USER_Email">
<headerstyle cssclass="tdcell" />
<itemstyle horizontalalign="Center" cssclass="tdcell" />
</asp:BoundField>
<asp:BoundField DataField="USER_Title" HeaderText="职 称" SortExpression="USER_Title">
<headerstyle cssclass="tdcell" />
<itemstyle horizontalalign="Center" cssclass="tdcell" />
</asp:BoundField>
<asp:BoundField DataField="USER_Tel" HeaderText="电 话" SortExpression="USER_Tel">
<headerstyle cssclass="tdcell" />
<itemstyle horizontalalign="Center" cssclass="tdcell" />
</asp:BoundField>
<asp:BoundField DataField="USER_Active" HeaderText="是否有效" SortExpression="USER_Active">
<headerstyle cssclass="tdcell" />
<itemstyle horizontalalign="Center" cssclass="tdcell" />
</asp:BoundField>
<asp:BoundField DataField="USER_Major" HeaderText="专业" SortExpression="USER_Major" >
<headerstyle cssclass="tdcell" horizontalalign="Center" />
<itemstyle cssclass="tdcell" horizontalalign="Center" />
</asp:BoundField>
</Columns>
<HeaderStyle CssClass="thHead" />
<FixRowCol TableHeight="" TableWidth="" />
<RowStyle CssClass="tdcell" />
</uc1:SmartGridView>
</td></tr>
</table>
</div>
</form>
</body>
</html>
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发表于 2010-6-17 10:33:45
