asp.net mvc 分页控件:HtmlHelper扩展

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按照以前在asp.net里用的分页控件写了一个asp.net mvc里的分页控件,就是HtmlHelper的扩展

namespace Lihui.Mvc.Extensions { public static class PagerBarHelper { /// <summary> /// 分页HTML生成器 /// </summary> /// <param name="helper">待扩展的HtmlHelper</param> /// <param name="totalCount">数据总数</param> /// <param name="pageSize">页数</param> /// <param name="displaySize">分页控件允许显示的页数</param> /// <param name="htmlAttributes">html属性</param> /// <returns></returns> public static string PagerBar(this HtmlHelper helper, int totalCount,int pageSize, int displaySize, object htmlAttributes) { string path = HttpContext.Current.Request.Url.AbsolutePath; Regex reg = new Regex(@"^(.+?)/?(/d*?)/?$", RegexOptions.IgnoreCase); Match match = reg.Match(path); if (match.Success == false) return string.Empty; int currentIndex = 1; //url模板 string urlmodel = match.Groups[1].Value; try { currentIndex = Convert.ToInt32(match.Groups[2].Value); } catch { //防止胡乱输入URL } //计算页数 int pages = totalCount % pageSize == 0 ? totalCount / pageSize : totalCount / pageSize + 1; StringBuilder sBuilder = new StringBuilder(); sBuilder.Append("<span"); //HTML属性设置 if (htmlAttributes != null) { string t = htmlAttributes.GetType().ToString(); foreach (PropertyInfo pi in htmlAttributes.GetType().GetProperties()) { sBuilder.AppendFormat(" {0}=/"{1}/"", pi.Name, pi.GetValue(htmlAttributes, null)); } } sBuilder.Append(">"); sBuilder.AppendFormat("总共<label>{0}</label>条, 当前<label>{1}</label>/<label>{2}</label>页,", totalCount, currentIndex, pages); if (currentIndex > 1) { sBuilder.AppendFormat(@"<a href=""{0}/{1}"" target=""_self"">【第一页】</a>", urlmodel, 1); sBuilder.AppendFormat(@"<a href=""{0}/{1}"" target=""_self"">【上一页】</a>", urlmodel, currentIndex - 1); } #region =页码区域起始点= int areaStart = currentIndex % displaySize > 0 ? currentIndex / displaySize * displaySize + 1 : (currentIndex - 1) / displaySize * displaySize + 1; #endregion #region =显示上一个页码区间,并往前翻到区间末尾页= if (currentIndex > displaySize) { sBuilder.AppendFormat(@"<a href=""{0}/{1}"" target=""_self""><<</a>", urlmodel, areaStart - 1); } #endregion #region =计算分页需要显示的页码区域= for (int i = areaStart; i < areaStart+10; i++) { //如果当前页超出总页数范围,则不再生成页码 if (i > pages) break; if (i == currentIndex) { //当前页没有链接,设置标签 sBuilder.AppendFormat(@"<span><label>{0}</label></span>", i); } else { sBuilder.AppendFormat(@"<span><a href=""{0}/{1}"" target=""_self"">{1}</a></span>", urlmodel, i); } } #endregion #region =显示下一个页码区间,并往后翻到区间首页= if (areaStart + 10 <= pages ) { sBuilder.AppendFormat(@"<a href=""{0}/{1}"" target=""_self"">>></a>", urlmodel, areaStart + 10); } #endregion if (currentIndex < pages) { sBuilder.AppendFormat(@"<a href=""{0}/{1}"" target=""_self"">【下一页】</a>", urlmodel, currentIndex + 1); sBuilder.AppendFormat(@"<a href=""{0}/{1}"" target=""_self"">【最后一页】</a>", urlmodel, pages); } sBuilder.Append("</span>"); return sBuilder.ToString(); } } }

使用很简单:

<%=Html.PagerBar((int)ViewData["Total"], (int)ViewData["PageSize"], 10, new { @class = "PageBar2" })%>

css样式:

.PageBar2 { width: 578px; font-size: 12px; font-family: Tahoma; } .PageBar2 label { color: #3399FF; } .PageBar2 span { padding: 0px 3px 0px 3px; } .PageBar2 span a { color: #629836; } .PageBar2 a { color: #629836; } /* Current Page Number */ .PageBar2 span label { color: #3399FF; }

分页原理就是给当前要分页的URL加上一个后缀/1,1是页面索引,

然后生成分页控件HTML