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
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/// <summary>
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/// 开始分页
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/// </summary>
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/// <returns></returns>
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protected DataTable Paging
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{
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get
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{
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//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
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int pageNumber = (this.startAt + this.maxResults - 1) / this.maxResults;
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DataTable dt = new DataTable();
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dt.Columns.Add("html");
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DataRow dr = dt.NewRow();
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//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
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dr["html"] = pagingNumberHtml(startAt,pageNumber+1,false);
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dt.Rows.Add(dr);
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//前面显示10页,如果有的话
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int previousPagesCount = 10;
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//循环把前面页的html连接插到前面去
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for (int i = pageNumber - 1; i >= 0 && i >= pageNumber - previousPagesCount; i--)
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{
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DataRow r = dt.NewRow();
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r["html"] = pagingNumberHtml(i*this.maxResults,i+1,true);
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dt.Rows.InsertAt(r,0);;
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}
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//后面也显示10页,如果有的话
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int nextPagesCount = 10;
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for (int i = pageNumber + 1; i <= this.pageCount && i <= pageNumber + nextPagesCount; i++)
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{
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DataRow r = dt.NewRow();
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r["html"] = pagingNumberHtml(i*this.maxResults,i+1,true);
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dt.Rows.Add(r);
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}
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//添加下一页的超级连接
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DataRow lastRow = dt.NewRow();
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lastRow["html"] = "<a href='Search.aspx?q="+this.Query+"&start="+(pageNumber+1)*this.maxResults+"'>下一页</a>";
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dt.Rows.Add(lastRow);
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return dt;
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}
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本文来自博客园,作者:古道轻风,转载请注明原文链接:https://www.cnblogs.com/88223100/archive/2008/08/18/1270626.html