// <summary> |
/// 静态 分页方法 |
/// </summary> |
public static class MyHtmlHelper |
{ |
//注意点:扩展方法必须是静态方法,所在的类必须是静态类,所在的命名空间改成System.Web.MVC则能省略页面中必须添加命名空间的约束。 |
//主要就是输出分页的超级链接的标签 |
//自定义分页Helper扩展 |
public static HtmlString ShowPageNavigate( this HtmlHelper htmlHelper, int currentPage, int pageSize, int totalCount) |
{ |
var redirectTo = htmlHelper.ViewContext.RequestContext.HttpContext.Request.Url.AbsolutePath; |
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 new HtmlString(output.ToString()); |
} |