小巧精致的ASP.Net分页控件

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1. using System;
2. using System.Data;
3. using System.Configuration;
4. using System.Collections;
5. using System.Web;
6. using System.Web.Security;
7. using System.Web.UI;
8. using System.Web.UI.WebControls;
9. using System.Web.UI.WebControls.WebParts;
10. using System.Web.UI.HtmlControls;
11. using System.Text;
12. using System.Text.RegularExpressions;
13. namespace MyTest
14. {
15. public partial class PageShow : System.Web.UI.UserControl
16. {
17. #region 私有成员
18. /// <summary>
19. /// 当前页的页码的背景色
20. /// </summary>
21. privatestring _color = "#a8ceff";
22. /// <summary>
23. /// 总记录数
24. /// </summary>
25. privateint _recTotal = 0;
26. /// <summary>
27. /// 每页显示的记录数, 默认为10
28. /// </summary>
29. privateint _pageSize = 10;
30. /// <summary>
31. /// 当前页的页码左右要显示的页码的个数, 默认7个
32. /// </summary>
33. privateint _pageShowNum = 7;
34. #endregion
35. #region 公共属性
36. /// <summary>
37. /// 设置或读取总记录数,不能小于0
38. /// </summary>
39. publicint RecTotal
40. {
41. get { return _recTotal; }
42. set
43. {
44. if (value > 0)
45. _recTotal = value;
46. }
47. }
48. /// <summary>
49. /// 设置或读取每页显示的记录数,不能小于0
50. /// </summary>
51. publicint PageSize
52. {
53. get { return _pageSize; }
54. set
55. {
56. if (value > 0)
57. _pageSize = value;
58. }
59. }
60. /// <summary>
61. /// 读取总页数
62. /// </summary>
63. publicint PageTotal
64. {
65. get {
66. int total = (int)Math.Ceiling((double)_recTotal / _pageSize);
67. return total;
68. //return PageTotal;
69. }
70. }
71. /// <summary>
72. /// 读取当前要显示第几页,注:页码传递方式是Request.QueryString["page"]
73. /// </summary>
74. publicint PageIndex
75. {
76. get
77. {
78. int pageIndex = 1;
79. string tmp = Request.QueryString["page"];
80. if (tmp != null && tmp != string.Empty)
81. {
82. if (tmp == "end")
83. pageIndex = PageTotal;
84. else
85. {
86. try
87. {
88. pageIndex = int.Parse(tmp);
89. if (pageIndex > PageTotal)
90. pageIndex = PageTotal;
91. elseif (pageIndex < 1)
92. pageIndex = 1;
93. }
94. catch (Exception)
95. {
96. pageIndex = 1;
97. }
98. }
99. }
100. return pageIndex;
101. }
102. }
103. /// <summary>
104. /// 设置或读取当前页的页码的背景色,默认为#a8ceff
105. /// </summary>
106. publicstring Color
107. {
108. get { return _color; }
109. set { _color = value; }
110. }
111. /// <summary>
112. /// 当前页的页码左右要显示的页码的个数,默认7个
113. /// </summary>
114. publicint PageShowNum
115. {
116. get { return _pageShowNum; }
117. set { _pageShowNum = value; }
118. }
119. #endregion
120. /// <summary>
121. /// 重写Render事件,发送生成的分页Url
122. /// </summary>
123. /// <param name="writer"></param>
124. protectedoverridevoid Render(HtmlTextWriter writer)
125. {
126. if (PageTotal <= 1)
127. {//少于1页时，不显示
128. return;
129. }
130. StringBuilder writeStr = new StringBuilder();
131. #region 控件使用的CSS代码
132. writeStr.Append(@"
133. <style type='text/css'>.page_total {background-color: #F5FBFF; border: 1px solid #86B9D6; border-right: 0px solid #86B9D6; font-weight: bold; }
134. .page_pages {background-color: #F5FBFF; border: 1px solid #86B9D6; margin-right:1px; vertical-align: middle; font-weight: bold; }
135. .page_num {background-color: #FFFFFF; border: 1px solid #DEDEB8; margin-right:1px; vertical-align: middle; }
136. a:hover.page_num {background-color: #F5FBFF; border: 1px solid #86B9D6; text-decoration: none; }
137. .page_curpage { margin-right:1px; border: 1px solid #DEDEB8; vertical-align: middle; background-color: #FFFF80; color: #92A05A; font-weight: bold; }
138. .page_bar { margin: 1px 0px; clear: both; }
139. .page_bar a { float: left; padding: 1px 4px; font-size: 12px; text-decoration: none; }
140. .page_redirect { background-color: #FFFFFF; border: 1px solid #DEDEB8; margin-right:1px; font-size: 12px !important; font-size: 13px; }
141. a:hover.page_redirect { background-color: #F5FBFF; border: 1px solid #86B9D6; text-decoration: none; }
142. </style>");
143. #endregion
144. writeStr.Append("<table cellspacing='0' cellpadding='0' align='left' >");
145. writeStr.Append("<tr><td valign='bottom'>");
146. writeStr.Append("<div class='page_bar'>");
147. writeStr.Append("<a class='page_total' title='记录总数'> " + _recTotal.ToString() + " </a>");
148. writeStr.Append("<a class='page_pages' title='当前页/总页数'> " + PageIndex + "/" + PageTotal + " </a>");
149. string url = GetUrl().ToLower();//取得当前页面的完整URL
150. string tmp;
151. //没有page时，加一个page, 方便后面替换
152. if (url.IndexOf("page=") < 0)
153. {
154. url = url + ((url.IndexOf("?") < 0) ? "?" : "&") + "page=1";
155. }
156. //设定正则表达式,用于替换url中的page=字符串
157. Regex my = new Regex(@"(page=[0-9]*(end)*)", RegexOptions.IgnoreCase);
158. #region 如果当前是指定显示个数的页码之后的页时,加上到第一页和上一页的链接(此时页面不会显示页码1)
159. if (PageIndex > _pageShowNum + 1)
160. {
161. //第一页
162. tmp = my.Replace(url, "page=1");
163. writeStr.Append("<a class='page_redirect' href='" + tmp + "' title='第一页'>|<</a>");
164. //上一页
165. tmp = my.Replace(url, "page=" + (PageIndex - 1).ToString());
166. writeStr.Append("<a class='page_redirect' href='" + tmp + "' title='上一页'><</a>");
167. }
168. #endregion
169. //总共显示( _pageShowNum * 2 + 1 )页的链接,从当前页往前_pageShowNum页,往前不足_pageShowNum页时,后面的页数增加.
170. int countPage = 0;//用于统计是否超过( _pageShowNum * 2 + 1 )页
171. int loopStart;
172. //当总页数大于( _pageShowNum * 2 + 1 ),且当前页为最后_pageShowNum页时,保持页面页码数不少于( _pageShowNum * 2 + 1 )
173. if (PageTotal - PageIndex >= _pageShowNum)
174. {
175. // 总页数 减 当前页码 大于等于左边要显示的个数时,循环 从当前页码 大于等于左边要显示的个数 开始
176. loopStart = PageIndex - _pageShowNum;
177. }
178. else
179. {
180. loopStart = PageTotal - _pageShowNum * 2;// PageIndex - _pageShowNum - (_pageShowNum - PageTotal + PageIndex) ==> PageTotal - _pageShowNum * 2
181. }
182. for (int loop = loopStart; loop <= PageTotal; loop++)
183. {
184. if (loop < 1)
185. continue;
186. else
187. countPage++;
188. #region 已经显示了( _pageShowNum * 2 + 1 )页 并且 当前页数小于等于总页数时,加上到最末页和上一页的链接并退出循环(不会显示最后1页的页码时)
189. if (countPage > (_pageShowNum * 2 + 1) && loop <= PageTotal)
190. {
191. //下一页
192. tmp = my.Replace(url, "page=" + (PageIndex + 1).ToString());
193. writeStr.Append("<a class='page_redirect' href='" + tmp + "' title='下一页'>></a>");
194. //最终页
195. tmp = my.Replace(url, "page=" + PageTotal.ToString());// my.Replace(url, "page=end");
196. writeStr.Append("<a class='page_redirect' href='" + tmp + "' title='最末页'>>|</a>");
197. break;
198. }
199. #endregion
200. #region 添加当前循环页的链接
201. if (loop == PageIndex)
202. {//当前页
203. writeStr.Append("<a class='page_curpage' + _color + "'>" +
204. loop.ToString() + "</a>");// + (loop > 99 ? (width + 5).ToString() : width.ToString()) + "px;'
205. }
206. else
207. {
208. //计算下一页的链接
209. tmp = my.Replace(url, "page=" + loop.ToString());
210. writeStr.Append("<a class='page_num' href='" + tmp + "' title='第" +
211. loop.ToString() + "页''>" + loop.ToString() + "</a>");
212. }
213. #endregion
214. }
215. writeStr.Append("</div></td></tr></table>");
216. writer.Write(writeStr.ToString());
217. }
218. /// <summary>
219. /// 获取当前页面的完整URL地址信息
220. /// </summary>
221. /// <returns></returns>
222. publicstring GetUrl()
223. {
224. string url;
225. url = System.Web.HttpContext.Current.Request.ServerVariables["SERVER_NAME"];
226. if (System.Web.HttpContext.Current.Request.ServerVariables["SERVER_PORT"] != "80")
227. url += ":" + System.Web.HttpContext.Current.Request.ServerVariables["SERVER_PORT"];
228. //strTemp = strTemp & CheckStr(Request.ServerVariables("URL"))
229. url += System.Web.HttpContext.Current.Request.ServerVariables["SCRIPT_NAME"];
230. if (!(System.Web.HttpContext.Current.Request.QueryString == null || System.Web.HttpContext.Current.Request.QueryString.ToString() == ""))
231. {
232. url += "?" + System.Web.HttpContext.Current.Request.QueryString.ToString();
233. }
234. string https = System.Web.HttpContext.Current.Request.ServerVariables["HTTPS"];
235. if (https == null || https == string.Empty || https == "off")
236. {
237. url = "http://" + url;
238. }
239. else
240. {
241. url = "https://" + url;
242. }
243. return url;
244. }
245. }
246. }

具体的控件代码如下,在你的VS.Net里新建一个用户控件,然后把下面的代码拷贝进去就可以用了,最下面是使用示