MVC分页

Posted 2020-06-09

htmlHelper扩展

 1 namespace POS.UI.HtmlHelpers
 2 {
 3     public static class PagingHelper
 4     {
 5         public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pagingInfo, Func<int, string> pageUrl)
 6         {
 7             StringBuilder result = new StringBuilder();
 8             for (int i = 1; i <= pagingInfo.TotalPages; i++)
 9             {
10                 TagBuilder tag = new TagBuilder("a");
11                 tag.MergeAttribute("href", pageUrl(i));
12                 tag.InnerHtml = i.ToString();
13                 if (i == pagingInfo.CurrentPage)
14                 {
15                     tag.AddCssClass("selected");
16                     tag.AddCssClass("btn-primary");//用到的是Bootstrap的样式
17                 }
18                 tag.AddCssClass("btn btn-default");
19                 result.Append(tag.ToString());
20             }
21             return MvcHtmlString.Create(result.ToString());
22         }
23     }
24 }

 

PageInfo类

 1 namespace POS.UI.Models
 2 {
 3     public class PagingInfo
 4     {
 5         public int TotalItems { get; set; }
 6         public int ItemsPerPage { get; set; }
 7         public int  CurrentPage { get; set; }
 8         public int TotalPages {
 9             get { return (int)Math.Ceiling(((decimal)TotalItems/ItemsPerPage)); }
10         }
11     }
12 }

 

ViewModel

1 namespace POS.UI.Models
2 {
3     public class IndexViewModel
4     {
5         public IEnumerable<Goods> GoodsCollection { get; set; }
6         public PagingInfo PagingInfo { get; set; }
7     }
8 }

 

调用示例

1 <div class="btn-group pull-right">
2     @Html.PageLinks(Model.PagingInfo, x => Url.Action("Index", new { page = x }))
3 </div>