一个Asp.Net的显示分页方法 附加实体转换和存储过程 带源码下载
之前自己一直用Aspnetpager控件来显示项目中的分页,但是每次都要拖一个aspnetpager的控件进去,感觉很不舒服,因为现在自己写的webform都不用服务器控件了,所以自己仿照aspnetpager写了一个精简实用的返回分页显示的htML方法,其他话不说了,直接上代码。
分页显示信息的实体类:
复制代码 代码如下:
public class Pager
{
PRivate string _FirstPageText;
/// summary>
/// 最前一页文字显示 默认显示为"首页"
/// /summary>
public string FirstPageText
{
get {
return string.IsNullOrEmpty(_firstPageText)? "首页" : _firstPageText;
}
set {
_firstPageText = value;
}
}
private string _prePageText;
/// summary>
/// 上一页文字显示 默认显示为"上一页"
/// /summary>
public string PrePageText
{
get
{
return string.IsNullOrEmpty(_prePageText) ? "上一页" : _prePageText;
}
set
{
_prePageText = value;
}
}
private string _nextPageText;
/// summary>
/// 下一页文字显示 默认显示为"下一页"
/// /summary>
public string NextPageText
{
get
{
return string.IsNullOrEmpty(_nextPageText) ? "下一页" : _nextPageText;
}
set
{
_nextPageText = value;
}
}
private string _lastPageText;
/// summary>
/// 末页文字显示 默认显示为"末页"
/// /summary>
public string LastPageText
{
get
{
return string.IsNullOrEmpty(_lastPageText) ? "末页" : _lastPageText;
}
set
{
_lastPageText = value;
}
}
/// summary>
/// 总记录数
/// /summary>
public int RecordCount {
get;
set;
}
private int _pagesize=15;
/// summary>
/// 每页分页尺寸 默认为15
/// /summary>
public int PageSize {
get {
return _pagesize == 0 ? 15 : _pagesize;
}
set{
_pagesize = value;
}
}
private int _pageindex=1;
/// summary>
/// 当前页码
/// /summary>
public int PageIndex {
get {
return _pageIndex == 0 ? 1 : _pageIndex;
}
set {
_pageIndex = value;
}
}
private int _maxShowPageSize = 10;
/// summary>
/// 显示页码列表的最大个数 默认为10
/// /summary>
public int MaxShowPageSize {
get {
return _maxShowPageSize;
}
set {
_maxShowPageSize = value;
}
}
private string _queryStringName;
/// summary>
/// 页码在浏览器中传值的名称 默认为page
/// /summary>
public string QueryStringName {
get {
return string.IsNullOrEmpty(_queryStringName)? "page" : _queryStringName;
}
set {
_queryStringName = value;
}
}
/// summary>
/// 页面的URL
/// /summary>
public string URL {
get {
string url = HttpContext.current.Request.Url.AbsoluteUri;
//当前页面绝对路径
if (EnableUrlRewrITing)//使用url重写
{
url=url.Substring(0, url.LastIndexOf("/") + 1);
//获取当前页面的目录路径
url += UrlRewritePattern;
}
else {
//普通带问号的页面传值
//demo.aspx
//demo.aspx?a=1
//demo.aspx?page=1
//demo.aspx?a=2&
page=1
if (url.Contains("aspx?"))
{
if (Regex.IsMatch(url,@"page=[0-9]*$",RegexOptions.IgnoreCase))//如果存在Page=*的字符串
{
url = Regex.Replace(url, @"page=[0-9]*$", "", RegexOptions.IgnoreCase);
//替换掉page=*的字符串
}
url += QueryStringName + "={
0}
";
}
else {
url += "?" + QueryStringName + "={
0}
";
}
}
return url;
}
}
private bool _enableUrlRewriting;
/// summary>
/// URL是否重写 默认为flase
/// /summary>
public bool EnableUrlRewriting {
get {
return (object)_enableUrlRewriting == null ? false : _enableUrlRewriting;
}
set {
_enableUrlRewriting = value;
}
}
/// summary>
/// 页面URL重写规则,将页码传值用{
0}
来代替 比如list-1-{
0}
.html,启用该功能需要将EnableUrlRewriting属性设为true
/// /summary>
public string UrlRewritePattern {
get;
set;
}
private string _classname;
/// summary>
/// 分页容器的css名称
/// /summary>
public string ClassName {
get {
return string.IsNullOrEmpty(_className) ? "paginator" : _className;
}
set{
_className = value;
}
}
private string _currentPageCss;
/// summary>
/// 当前页面按钮css
/// /summary>
public string CurrentPageButtonCss {
get {
return string.IsNullOrEmpty(_currentPageCss) ? "cpb" : _currentPageCss;
}
set{
_currentPageCss = value;
}
}
private bool _showSpanText;
/// summary>
/// Span 标签中文字信息是否显示 默认为false不显示
/// /summary>
public bool ShowSpanText {
get {
return (object)_showSpanText == null ? false : _showSpanText;
}
set {
_showSpanText = value;
}
}
private string _spanTextClass;
/// summary>
/// 分页文字描述span标签css
/// /summary>
public string SpanTextClass {
get {
return string.IsNullOrEmpty(_spanTextClass) ? "stc" : _spanTextClass;
}
set {
_spanTextClass = value;
}
}
private string _submitButtonText;
/// summary>
/// 确定按钮文字显示 默认显示"确定"
/// /summary>
public string SubmitButtonText {
get {
return string.IsNullOrEmpty(_submitButtonText) ? "确定" : _submitButtonText;
}
set {
_submitButtonText = value;
}
}
}
分页显示html代码的拼接方法:
复制代码 代码如下:
public class SplitManager
{
public static string AspNetPagers(Pager pager)
{
StringBuilder sb = new StringBuilder();
string attr="";
int pagecount = 0;
//当前页面的总层数
int floorcount = 0;
//分页的总层数
int currentLastPage = 0;
//当前最后一页的页码
int pageNum = pager.RecordCount / pager.PageSize + 1;
//总页数 1~24
sb.ApPEnDFormat("div class=\"{
0}
\">
\n", pager.ClassName);
attr=pager.PageIndex==1?"disabled=disabled":"";
//标志当前页第一页是否相等 来控制前俩个按钮的有效性
sb.AppendFormat(GetAHtml(attr,string.Format(pager.URL,1),pager.FirstPageText));
//添加最前一页的代码
sb.AppendFormat(GetAHtml(attr, string.Format(pager.URL, pager.PageIndex-1), pager.PrePageText));
//添加上一页的代码
pagecount = pager.PageIndex/pager.MaxShowPageSize;
//当前页数 0~1~2
pagecount = pager.PageIndex % pager.MaxShowPageSize == 0 ? pagecount - 1 : pagecount;
//清除当 当前页数为分页页码数的整数倍页时除数多一的状况
floorcount = pageNum / pager.MaxShowPageSize;
//页面层数 0~1~2
currentLastPage=pageNumpager.MaxShowPageSize * (pagecount + 1)?pageNum:pager.MaxShowPageSize * (pagecount + 1);
if (pager.PageIndex >
pager.MaxShowPageSize)//当当前序号大于每页页码个数时显示再前端...
{
sb.AppendFormat(GetAHtml("", string.Format(pager.URL, pager.MaxShowPageSize * pagecount), "..."));
}
for (int i = pager.MaxShowPageSize * pagecount + 1;
i = currentLastPage;
i++)
{
if (i == pager.PageIndex)//判断循环页面是否为当前页
{
sb.AppendFormat(GetSpanHtml(i, pager.CurrentPageButtonCss));
}
else {
sb.AppendFormat(GetAHtml("", string.Format(pager.URL, i),i.ToString()));
}
}
if (pager.PageIndex = pager.MaxShowPageSize * floorcount)//当当前序号小于倒数第二页页码时显示在后端...
{
sb.AppendFormat(GetAHtml("", string.Format(pager.URL, pager.MaxShowPageSize * (pagecount + 1) + 1), "..."));
}
attr = pager.PageIndex == pageNum ? "disabled=disabled" : "";
//标志当前页最后一页是否相等 来控制后俩个按钮的有效性
sb.AppendFormat(GetAHtml(attr, string.Format(pager.URL, pager.PageIndex+1), pager.NextPageText));
//添加后一页的代码
sb.AppendFormat(GetAHtml(attr, string.Format(pager.URL, pageNum), pager.LastPageText));
//添加最后一页的代码
if (pager.ShowSpanText)//是否显示分页文字span标签显示
{
sb.AppendFormat("span class=\"" + pager.SpanTextClass + "\">
共{
0}
页,每页{
1}
条记录 \n", pageNum, pager.PageSize);
sb.AppendFormat("到第input type=\"input\" id=\"jumpNum\" style=\"width:20px;
\" name=\"jump\" value=\"{
0}
\" />
页", pager.PageIndex == pageNum ? pageNum : pager.PageIndex + 1);
sb.AppendFormat("a href=\"#\" style=\"float:none;
\" onclick=\"javascript:jump();
\">
" + pager.SubmitButtonText + "/a>
/span>
\n");
sb.Append(GetJumpScript(pager.URL));
//添加按钮跳转的javascript代码
}
sb.AppendFormat("/div>
");
//
return sb.ToString();
}
/// summary>
/// get the html of a label
/// /summary>
/// param name="title">
a's title/param>
/// param name="url">
the url of a/param>
/// param name="attr">
the attribute/param>
/// returns>
return html string/returns>
private static string GetAHtml(string attr,string url,string title)
{
return "a " + attr + " href=\""+url+"\" style=\"margin-right:5px;
\">
"+title+"/a>
\n";
}
/// summary>
/// get the html of a label
/// /summary>
/// param name="num">
the content of span/param>
/// param name="className">
Class style Name/param>
/// returns>
return html string /returns>
private static string GetSpanHtml(int num, string className)
{
return "span class=\"" + className + "\">
" + num + "/span>
\n";
}
/// summary>
/// 获取跳转的javascript代码
/// /summary>
/// param name="url">
当前分页的url规则/param>
/// returns>
返回一个javascript代码/returns>
private static string GetJumpScript(string url)
{
string scriptstr = "script type=\"text/javascript\">
\n" +
"function jump(){
\n" +
"VAR jnum=document.getElementById(\"jumpNum\").value;
\n" +
"if(isNaN(jnum)){
\n"+
"alert(\"在跳转框中请输入数字!\");
\n" +
"}
\n"+
"else{
\n"+
//"alert(jnum);
\n" +
"location.href=String.format(\"" + url + "\",jnum);
\n" +
"}
\n"+
"}
\n"+
"String.format = function() {
\n"+
"if( arguments.length == 0 )\n"+
"return null;
\n"+
"var str = arguments[0];
\n"+
"for(var i=1;
iarguments.length;
i++) {
\n"+
"var re = new RegExp('\\\\{
' + (i-1) + '\\\\}
','gm');
\n"+
"str = str.replace(re, arguments[i]);
\n"+
"}
\n"+
"return str;
\n"+
"}
\n"+
"/script>
\n";
return scriptstr;
}
}
最精简必要的几个参数传进去就能显示分页效果了:
复制代码 代码如下:
protected string str = "";
protected void Page_Load(object sender, EventArgs e)
{
Pager pager = new Pager() {
RecordCount = 350,
PageSize = 15,
MaxShowPageSize=10,
PageIndex = Convert.ToInt32(Request.QueryString["page"]),
ShowSpanText=true}
;
str = SplitManager.AspNetPagers(pager);
}
仿csdn的分页的效果图
供测试的css:
复制代码 代码如下:
View Code
style type="text/css">
/*分页样式控制的开始*/
.paginator {
font: 12px Arial, Helvetica, sans-serif;
padding:10px 20px 10px 0;
margin: 0px;
}
.paginator a {
border:solid 1px #ccc;
color:#0063dc;
cursor:pointer;
text-decoration:none;
}
.paginator a:visited {
padding: 1px 6px;
border: solid 1px #ddd;
background: #f0F1f1;
text-decoration: none;
}
.paginator .cpb {
border:1px solid #14316b;
font-weight:700;
color:#f0f1f1;
background-color:#1f3d76;
}
.paginator a:hover {
border:solid 1px #14316b;
color:#14316b;
text-decoration:none;
}
.paginator a,.paginator a:visited,.paginator .cpb,.paginator a:hover{
float:left;
height:16px;
line-height:16px;
min-width:10px;
_width:10px;
margin-right:5px;
text-align:center;
white-space:nowrap;
font-Size:12px;
font-family:
Arial,SimSun;
padding:0 3px;
}
.paginator .stc{
color:#999;
margin-left:20px;
}
.paginator .stc a{
margin-left:10px;
}
/*分页样式控制的结束*/
/style>
同时配合为了配合分页,再给出一个DataTable转泛型列表的一个方法和一个分页存储过程。
此转换方法需配合相应的实体类,并且实体类中需对象相应表的字段名,不区分大小写。
复制代码 代码如下:
#region DataTable To List/Model
/// summary>
/// DataTable To List
/// /summary>
/// typeparam name="TType">
object type/typeparam>
/// param name="dt">
DataTable/param>
/// returns>
return a List Model type/returns>
public static ListT>
DataTableToObjectListT>
(DataTable dt) where T : new()
{
DataRowCollection drc = dt.Rows;
int columncount = drc.Count;
ListT>
result = new ListT>
();
//declare the generic type of return
Type type = typeof(T);
PropertyInfo[] propertys = type.GetProperties(BindingFlags.IgnoreCase|BindingFlags.Instance|BindingFlags.Public|BindingFlags.SetProperty);
//get the collections of the model
foreach (DataRow r in drc)
{
result.Add(DataRowToObjectModelT>
(r, propertys));
}
return result;
}
/// summary>
/// DataRow To a Model
/// /summary>
/// typeparam name="T">
the type of Model/typeparam>
/// param name="r">
DataRow/param>
/// param name="propertys">
the object to Model/param>
/// returns>
return a Model Type/returns>
private static T DataRowToObjectModelT>
(DataRow r, PropertyInfo[] propertys) where T : new()
{
T t = new T();
for (int i = 0;
i propertys.Length;
i++)
{
object obj = r[propertys[i].Name];
if (obj != null)
{
if (propertys[i].PropertyType == typeof(int))
propertys[i].SetValue(t, PublicMethod.GetInt(obj), null);
if (propertys[i].PropertyType == typeof(string))
propertys[i].SetValue(t, obj.ToString(), null);
if (propertys[i].PropertyType == typeof(DateTime))
propertys[i].SetValue(t, PublicMethod.GetDateTime(obj), null);
}
}
return t;
}
#endregion
分页存储过程。
复制代码 代码如下:
CREATE PROCEDURE [dbo].[proc_SplitPage]
-- Add the parameters for the Stored procedure here
@tblName vArchar(255), -- 表名
@strFields varchar(1000) = '*', -- 需要返回的列,默认*
@strOrder varchar(255)='', -- 排序的字段名,必填
@strOrderType varchar(10)='ASC', -- 排序的方式,默认ASC
@PageSize int = 10, -- 页尺寸,默认10
@PageIndex int = 1, -- 页码,默认1
@strWhere varchar(1500) = '' -- 查询条件 (注意: 不要加 where)
AS
declare @strSQL varchar(5000)
if @strWhere !=''
set @strWhere=' where '+@strWhere
set @strSQL=
'SELECT '+@strFields+' From ('+
'SELECT ROW_NUMBER() OVER (ORDER BY '+@strOrder+' '+@strOrderType+') AS pos,'+@strFields+' '+
'From '+@tblName+' '+@strWhere+
') AS sp
WHERE pos BETWEEN '+str((@PageIndex-1)*@PageSize+1)+' AND '+str(@PageIndex*@PageSize)
exec (@strSQL)
以上是全部代码,由于本人还是新手,请大家查找问题并指导,谢谢。
有些朋友需要源码的再此下载,方便测试
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