DotLucene搜索索引(下)

还有就是一个Paging属性，他的作用就是分页，输出分页的html这个属性很经典
1/**//// <summary>
2    /// 开始分页
3    /// </summary>
4    /// <returns></returns>
5    protected DataTable Paging
6    {
7        get
8        {
9           //知道了startAt,分页也很容易了,现在根据startAt得到当前是第几页,注意，现在这里的页数也是暂时从0开始的
10            int pageNumber = (this.startAt + this.maxResults - 1) / this.maxResults;
11             DataTable dt = new DataTable();
12             dt.Columns.Add("html");
13             DataRow dr = dt.NewRow();
14            //暂时得到当前页的html连接,注意这里当真正显示页数的时候要+1
15             dr["html"] = pagingNumberHtml(startAt,pageNumber+1,false);
16             dt.Rows.Add(dr);
17            //前面显示10页，如果有的话
18            int previousPagesCount = 10;
19            //循环把前面页的html连接插到前面去
20            for (int i = pageNumber - 1; i >= 0 && i >= pageNumber - previousPagesCount; i--)
21            {
22                 DataRow r = dt.NewRow();
23                 r["html"] = pagingNumberHtml(i*this.maxResults,i+1,true);
24                 dt.Rows.InsertAt(r,0);;
25             }
26            //后面也显示10页，如果有的话
27            int nextPagesCount = 10;
28            for (int i = pageNumber + 1; i <= this.pageCount && i <= pageNumber + nextPagesCount; i++)
29            {
30                 DataRow r = dt.NewRow();
31                 r["html"] = pagingNumberHtml(i*this.maxResults,i+1,true);
32                 dt.Rows.Add(r);
33             }
34            //添加下一页的超级连接
35             DataRow lastRow = dt.NewRow();
36             lastRow["html"] = "<a href='Search.aspx?q="+this.Query+"&start="+(pageNumber+1)*this.maxResults+"'>下一页</a>";
37             dt.Rows.Add(lastRow);
38            return dt;
39
40         }