PageBarHelper分页显示类

秒速五厘米 2021-10-26 12:48 372阅读 0赞

一共有两个分页类,都可以使用(单独使用)

using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Text;  
using System.Threading.Tasks;

namespace Common  
\{  
public class PageBarHelper  
\{  
/// <summary>  
/// 计算数字页码条  
/// </summary>  
/// <param name="pageIndex">当前页码</param>  
/// <param name="pageCount">总页数</param>  
/// <returns></returns>  
public static string GetPageBar(int pageIndex,int pageCount)  
\{  
if (pageCount == 1)  
\{  
return string.Empty;  
\}  
//要求页面上要显示10个数字页码。  
int start = pageIndex - 5;//计算起始位置  
if (start < 1)  
\{  
start = 1;  
\}  
int end = start + 9;//计算终止位置.  
if (end > pageCount)  
\{  
end = pageCount;  
start = end - 9<1?1:end-9;  
\}  
StringBuilder sb = new StringBuilder();  
if (pageIndex > 1)  
\{  
sb.Append(string.Format("<a href='?pageIndex=\{0\}' class='pageBarIndex'>上一页</a>", pageIndex - 1));  
\}  
for (int i = start; i <= end; i++)  
\{  
if (i == pageIndex)  
\{  
sb.Append(i);  
\}  
else  
\{  
sb.Append(string.Format("<a href='?pageIndex=\{0\}' class='pageBarIndex'>\{0\}</a>",i));  
\}  
\}  
if (pageIndex < pageCount)  
\{  
sb.Append(string.Format("<a href='?pageIndex=\{0\}' class='pageBarIndex'>下一页</a>", pageIndex + 1));  
\}

return sb.ToString();  
\}  
\}  
\}

\---------------------------------------------------------------------------分划线-------------------------------------------------------------------------------

using System;  
using System.Text;

namespace WebDemo.Common  
\{  
public class LaomaPager  
\{  
/// <summary>  
///  
/// </summary>  
/// <param name="pageSize">一页多少条</param>  
/// <param name="currentPage">当前页</param>  
/// <param name="totalCount">总条数</param>  
/// <returns></returns>  
public static string ShowPageNavigate(int pageSize, int currentPage, int totalCount)  
\{  
string redirectTo = "";  
pageSize = pageSize == 0 ? 3 : pageSize;  
var totalPages = Math.Max((totalCount + pageSize - 1) / pageSize, 1); //总页数  
var output = new StringBuilder();  
if (totalPages > 1)  
\{  
if (currentPage != 1)  
\{//处理首页连接  
output.AppendFormat("<a class='pageLink' href='\{0\}?pageIndex=1&pageSize=\{1\}'>首页</a> ", redirectTo, pageSize);  
\}  
if (currentPage > 1)  
\{//处理上一页的连接  
output.AppendFormat("<a class='pageLink' href='\{0\}?pageIndex=\{1\}&pageSize=\{2\}'>上一页</a> ", redirectTo, currentPage - 1, pageSize);  
\}  
else  
\{  
// output.Append("<span class='pageLink'>上一页</span>");  
\}

output.Append(" ");  
int currint = 5;  
for (int i = 0; i <= 10; i++)  
\{//一共最多显示10个页码，前面5个，后面5个  
if ((currentPage + i - currint) >= 1 && (currentPage + i - currint) <= totalPages)  
\{  
if (currint == i)  
\{//当前页处理  
//output.Append(string.Format("\[\{0\}\]", currentPage));  
output.AppendFormat("<a class='cpb' href='\{0\}?pageIndex=\{1\}&pageSize=\{2\}'>\{3\}</a> ", redirectTo, currentPage, pageSize, currentPage);  
\}  
else  
\{//一般页处理  
output.AppendFormat("<a class='pageLink' href='\{0\}?pageIndex=\{1\}&pageSize=\{2\}'>\{3\}</a> ", redirectTo, currentPage + i - currint, pageSize, currentPage + i - currint);  
\}  
\}  
output.Append(" ");  
\}  
if (currentPage < totalPages)  
\{//处理下一页的链接  
output.AppendFormat("<a class='pageLink' href='\{0\}?pageIndex=\{1\}&pageSize=\{2\}'>下一页</a> ", redirectTo, currentPage + 1, pageSize);  
\}  
else  
\{  
//output.Append("<span class='pageLink'>下一页</span>");  
\}  
output.Append(" ");  
if (currentPage != totalPages)  
\{  
output.AppendFormat("<a class='pageLink' href='\{0\}?pageIndex=\{1\}&pageSize=\{2\}'>末页</a> ", redirectTo, totalPages, pageSize);  
\}  
output.Append(" ");  
\}  
output.AppendFormat("第\{0\}页 / 共\{1\}页", currentPage, totalPages);//这个统计加不加都行  
return output.ToString();  
\}  
\}  
\}

转载于:https://www.cnblogs.com/jiangyunfeng/p/11266439.html