分页代码
1
/* ***********************************************
2
* Copyright: ? 2001-2009
3* Author: 作者:MILD
4* Link: http://www.***.com
5* Created Time: 2009-9-19 19:52:14
6* Object Name: Mild.Core.PageListFactory
7* FileName: PageListFactory
8* Description: 该类的描述、功用、依赖性
9* EditHistory: 修改记录
10
* ***********************************************/
11
12/*
13附上css样式
14.pager{line-height:130%; margin:50px auto; width:80%; height:auto;}
15.pager input{width:30px;border:solid 1px #dbdbdb;}
16.pager a{padding:3px 5px; border:solid 1px #dbdbdb;}
17.pager a:link,.pager a:visited{text-decoration:none;color:#666; margin-right:3px;}
18.pager a.page-select{background:#000;color:#fff;font-weight:bold;}
19*/
20using System;
21using System.Text;
22using System.Web;
23
24namespace Mild.Common.Core
25{
26
/// <summary>
27 /// 类 PageListFactory 的说明
28
/// </summary>
29 public class PageListFactory
30 {
31 /// <summary>
32 /// 页码项模版
33 /// </summary>
34 public string NumItem = "<a href='{0}'>{1}</a>";
35
36 /// <summary>
37 /// 当前页码项模版
38 /// </summary>
39 public string CurrentNumItem = "<a class='page-select' href='javascript:void(0)'>{0}</a>";
40
41 /// <summary>
42 /// 盒子开始的标签
43 /// </summary>
44 public string BoxBeginTag = "<div class='pager'>";
45
46 /// <summary>
47 /// 盒子结束的标签
48 /// </summary>
49 public string BoxEndTag = "</div>";
50
51 /// <summary>
52 /// 记录总数
53 /// </summary>
54 public int Total = 1;
55
56 /// <summary>
57 /// 页大小
58 /// </summary>
59 public int PageSize = 1;
60
61 /// <summary>
62 /// 当前页
63 /// </summary>
64 public int CurrentPage = 1;
65
66 /// <summary>
67 /// 页数
68 /// </summary>
69 public int PageCount = 0;
70
71 /// <summary>
72 /// 当当前页大于该数字则显示更多
73 /// </summary>
74 public int MoreFlag = 4;
75
76 /// <summary>
77 /// 传递过来的当前页参数名称
78 /// </summary>
79 public string QueryStringName = "page";
80
81 /// <summary>
82 /// 更多的链接
83 /// </summary>
84 public string MoreLink = "<a href='{0}'>..</a>";
85
86 /// <summary>
87 /// URL 模版
88 /// </summary>
89 private string UrlWithoutPage = string.Empty;
90
91 /// <summary>
92 /// URL 地址上的参数模版
93 /// </summary>
94 private string UrlParameters = string.Empty;
95
96 /// <summary>
97 /// URL 重写的表达式
98 /// </summary>
99 private string UrlRewritePatten = string.Empty;
100
101 /// <summary>
102 /// 开始页码
103 /// </summary>
104 private int StartNum = 1;
105
106 /// <summary>
107 /// 结束页码
108 /// </summary>
109 private int EndNum = 0;
110
111
112 /// <summary>
113 /// 首页文本
114 /// </summary>
115 public string FirstPageText = "<a href='{0}'>首页</a>";
116
117 /// <summary>
118 /// 上一页文本
119 /// </summary>
120 public string PreviouPageText = "<a href='{0}'>上一页</a>";
121
122 /// <summary>
123 /// 下一页文本
124 /// </summary>
125 public string NextPageText = "<a href='{0}'>下一页</a>";
126
127 /// <summary>
128 /// 末页文本
129 /// </summary>
130 public string LastPageText = "<a href='{0}'>末页</a>";
131
132 /// <summary>
133 /// 更多页 - 向前
134 /// </summary>
135 public string MorePreviouText = "<a href='{0}'>..</a>";
136
137 /// <summary>
138 /// 更多页 - 向后
139 /// </summary>
140 public string MoreNextText = "<a href='{0}'>..</a>";
141
142 /// <summary>
143 /// 输入框
144 /// </summary>
145 public string InputToPageText = "<input type='text' onkeydown='_m_goto_page(event,this)' /><input type='button' value='转到' onclick='_m_goto_page(event,this)' /><script>function _m_goto_page(e,o){var ipts=o.parentNode.getElementsByTagName(\"input\");if(o.type=='text'){var kcode;if(window.event){kcode=e.keyCode}else if(e.which){kcode=e.which}if(kcode==13){if(document.all){ipts[1].click()}else if(document.createEvent){var ev=document.createEvent('HTMLEvents');ev.initEvent('click',false,true);ipts[1].dispatchEvent(ev)}}return}var page=ipts[0].value;var p=/\\d+/;if(!p.test(page)){alert(\"页码输入错误\")}else if(page>{maxpage}){alert(\"页码超过总页数，请重新输入\");ipts[0].value=\"\"}else{location.href='{url}'+ipts[0].value}}</script>";
146
147 private PageListFactory() { }
148
149 /// <summary>
150 /// 构造函数
151 /// </summary>
152 /// <param name="page"></param>
153 /// <param name="pagesize"></param>
154 /// <param name="total"></param>
155 /// <param name="ptn"></param>
156 private PageListFactory(int page, int pagesize, int total, string ptn)
157 {
158 this.Total = total;
159 this.CurrentPage = page;
160 this.PageSize = pagesize;
161 this.PageCount = (int)Math.Ceiling(Total * 1.0 / PageSize);
162 this.UrlRewritePatten = ptn;
163
164 if (page > PageCount)
165 {
166 CurrentPage = PageCount;
167 }
168 }
169
170 private void PrepareInterzone()
171 {
172 int flag = 0;
173
174 if (CurrentPage > MoreFlag)
175 {
176 flag = (int)Math.Ceiling(CurrentPage * 1.0 / MoreFlag);
177
178 if (flag >= 2)
179 {
180 StartNum = CurrentPage - MoreFlag;
181
182 MorePreviouText = string.Format(MorePreviouText, UrlWithoutPage + QueryStringName + "=" + (CurrentPage - MoreFlag));
183 }
184 else
185 {
186 MorePreviouText = "";
187 }
188 }
189 else
190 {
191 MorePreviouText = "";
192 }
193
194 int nflag = 0;
195
196 if (PageCount - CurrentPage > MoreFlag)
197 {
198 nflag = (int)Math.Ceiling((PageCount - CurrentPage) * 1.0 / MoreFlag);
199
200 if (nflag >= 2)
201 {
202 EndNum = CurrentPage + MoreFlag;
203
204 MoreNextText = string.Format(MoreNextText, UrlWithoutPage + QueryStringName + "=" + (CurrentPage + MoreFlag));
205 }
206 else
207 {
208 MoreNextText = "";
209 }
210 }
211 else
212 {
213 EndNum = PageCount;
214
215 MoreNextText = "";
216 }
217 }
218
219 /// <summary>
220 /// 准备所有的参数
221 /// </summary>
222 private void Prepare()
223 {
224 this.UrlWithoutPage = MakeUrl();
225
226 PrepareInterzone();
227
228
229 if (CurrentPage == 1)
230 {
231 FirstPageText = string.Format(FirstPageText, "javascript:;");
232 PreviouPageText = string.Format(PreviouPageText, "javascript:;");
233 }
234 else
235 {
236 FirstPageText = string.Format(FirstPageText, UrlWithoutPage + QueryStringName + "=1");
237 PreviouPageText = string.Format(PreviouPageText, UrlWithoutPage + QueryStringName + "=" + (CurrentPage - 1));
238 }
239
240 if (CurrentPage == PageCount)
241 {
242 LastPageText = string.Format(LastPageText, "javascript:;");
243 NextPageText = string.Format(NextPageText, "javascript:;");
244 }
245 else
246 {
247 LastPageText = string.Format(LastPageText, UrlWithoutPage + QueryStringName + "=" + PageCount);
248 NextPageText = string.Format(NextPageText, UrlWithoutPage + QueryStringName + "=" + (CurrentPage + 1));
249 }
250 }
251
252 /// <summary>
253 /// 获取当前页面的URL，但不包含页码参数
254 /// </summary>
255 /// <returns></returns>
256 private string MakeUrl()
257 {
258 HttpRequest Request = HttpContext.Current.Request;
259 string Url = Request.Url.AbsolutePath.Replace("/", "") + "?";
260 string[] queryNames=Request.QueryString.AllKeys;
261 System.Collections.Generic.List<string> list = new System.Collections.Generic.List<string>();
262
263 string key = string.Empty;
264 string value = string.Empty;
265 for (int i = 0; i < queryNames.Length; i++)
266 {
267 key = queryNames[i];
268 value = Request.QueryString[key];
269 if (key == QueryStringName||value=="")
270 {
271 continue;
272 }
273 list.Add(key + "=" + value);
274 }
275
276 string paras = Url + string.Join("&", list.ToArray());
277
278 if (list.Count > 0)
279 {
280 paras += "&";
281 }
282
283 return paras;
284 }
285
286 public string CreateHtml()
287 {
288 Prepare();
289
290 StringBuilder sb = new StringBuilder();
291 sb.AppendLine(BoxBeginTag);
292 sb.AppendLine(FirstPageText);
293 sb.AppendLine(PreviouPageText);
294 sb.AppendLine(MorePreviouText);
295 for (int i = StartNum; i < EndNum+1; i++)
296 {
297 if (i == CurrentPage)
298 {
299 sb.AppendFormat(CurrentNumItem, i.ToString());
300 continue;
301 }
302
303 sb.AppendFormat(NumItem, UrlWithoutPage + QueryStringName + "=" + i, i.ToString());
304 }
305 sb.AppendLine(MoreNextText);
306 sb.AppendLine(NextPageText);
307 sb.AppendLine(LastPageText);
308
309 if (PageCount > 20)
310 {
311 sb.Append(InputToPageText.Replace("{maxpage}", PageCount.ToString()).Replace("{url}", UrlWithoutPage + "page="));
312 }
313
314 sb.AppendLine(BoxEndTag);
315 return sb.ToString();
316 }
317
318 /// <summary>
319 /// 获取分页html
320 /// </summary>
321 /// <param name="page">当前页</param>
322 /// <param name="pagesize">页大小(几条记录一页)</param>
323 /// <param name="total">总记录数</param>
324 /// <param name="ptn">未作,URL重写表达式</param>
325 /// <returns></returns>
326 public static string GetHtml(int page, int pagesize, int total, string ptn)
327 {
328 PageListFactory factory = new PageListFactory(page, pagesize, total, ptn);
329
330 return factory.CreateHtml();
331 }
332
333 /// <summary>
334 /// 获取分页html
335 /// </summary>
336 /// <param name="page">当前页</param>
337 /// <param name="pagesize">页大小(几条记录一页)</param>
338 /// <param name="total">总记录数</param>
339 /// <returns></returns>
340 public static string GetHtml(int page, int pagesize, int total)
341 {
342 return GetHtml(page, pagesize, total, "");
343 }
344 }
345}
/* ***********************************************
2
* Copyright: ? 2001-20093
* Author: 作者:MILD4
* Link: http://www.***.com5
* Created Time: 2009-9-19 19:52:146
* Object Name: Mild.Core.PageListFactory7
* FileName: PageListFactory8
* Description: 该类的描述、功用、依赖性9
* EditHistory: 修改记录10
* ***********************************************/11
12
/*13
附上css样式14
.pager{line-height:130%; margin:50px auto; width:80%; height:auto;}15
.pager input{width:30px;border:solid 1px #dbdbdb;}16
.pager a{padding:3px 5px; border:solid 1px #dbdbdb;}17
.pager a:link,.pager a:visited{text-decoration:none;color:#666; margin-right:3px;}18
.pager a.page-select{background:#000;color:#fff;font-weight:bold;}19
*/20
using System;21
using System.Text;22
using System.Web;23
24
namespace Mild.Common.Core25
{
26
/// <summary>
27
/// 类 PageListFactory 的说明28
/// </summary>29
public class PageListFactory30
{31
/// <summary>32
/// 页码项模版33
/// </summary>34
public string NumItem = "<a href='{0}'>{1}</a>";35
36
/// <summary>37
/// 当前页码项模版38
/// </summary>39
public string CurrentNumItem = "<a class='page-select' href='javascript:void(0)'>{0}</a>";40
41
/// <summary>42
/// 盒子开始的标签43
/// </summary>44
public string BoxBeginTag = "<div class='pager'>";45
46
/// <summary>47
/// 盒子结束的标签48
/// </summary>49
public string BoxEndTag = "</div>";50
51
/// <summary>52
/// 记录总数53
/// </summary>54
public int Total = 1;55
56
/// <summary>57
/// 页大小58
/// </summary>59
public int PageSize = 1;60
61
/// <summary>62
/// 当前页63
/// </summary>64
public int CurrentPage = 1;65
66
/// <summary>67
/// 页数68
/// </summary>69
public int PageCount = 0;70
71
/// <summary>72
/// 当当前页大于该数字则显示更多73
/// </summary>74
public int MoreFlag = 4;75
76
/// <summary>77
/// 传递过来的当前页参数名称78
/// </summary>79
public string QueryStringName = "page";80
81
/// <summary>82
/// 更多的链接83
/// </summary>84
public string MoreLink = "<a href='{0}'>..</a>";85
86
/// <summary>87
/// URL 模版88
/// </summary>89
private string UrlWithoutPage = string.Empty;90
91
/// <summary>92
/// URL 地址上的参数模版93
/// </summary>94
private string UrlParameters = string.Empty;95
96
/// <summary>97
/// URL 重写的表达式98
/// </summary>99
private string UrlRewritePatten = string.Empty;100
101
/// <summary>102
/// 开始页码103
/// </summary>104
private int StartNum = 1;105
106
/// <summary>107
/// 结束页码108
/// </summary>109
private int EndNum = 0;110
111
112
/// <summary>113
/// 首页文本114
/// </summary>115
public string FirstPageText = "<a href='{0}'>首页</a>";116
117
/// <summary>118
/// 上一页文本119
/// </summary>120
public string PreviouPageText = "<a href='{0}'>上一页</a>";121
122
/// <summary>123
/// 下一页文本124
/// </summary>125
public string NextPageText = "<a href='{0}'>下一页</a>";126
127
/// <summary>128
/// 末页文本129
/// </summary>130
public string LastPageText = "<a href='{0}'>末页</a>";131
132
/// <summary>133
/// 更多页 - 向前134
/// </summary>135
public string MorePreviouText = "<a href='{0}'>..</a>";136
137
/// <summary>138
/// 更多页 - 向后139
/// </summary>140
public string MoreNextText = "<a href='{0}'>..</a>";141
142
/// <summary>143
/// 输入框144
/// </summary>145
public string InputToPageText = "<input type='text' onkeydown='_m_goto_page(event,this)' /><input type='button' value='转到' onclick='_m_goto_page(event,this)' /><script>function _m_goto_page(e,o){var ipts=o.parentNode.getElementsByTagName(\"input\");if(o.type=='text'){var kcode;if(window.event){kcode=e.keyCode}else if(e.which){kcode=e.which}if(kcode==13){if(document.all){ipts[1].click()}else if(document.createEvent){var ev=document.createEvent('HTMLEvents');ev.initEvent('click',false,true);ipts[1].dispatchEvent(ev)}}return}var page=ipts[0].value;var p=/\\d+/;if(!p.test(page)){alert(\"页码输入错误\")}else if(page>{maxpage}){alert(\"页码超过总页数，请重新输入\");ipts[0].value=\"\"}else{location.href='{url}'+ipts[0].value}}</script>";146
147
private PageListFactory() { }148
149
/// <summary>150
/// 构造函数151
/// </summary>152
/// <param name="page"></param>153
/// <param name="pagesize"></param>154
/// <param name="total"></param>155
/// <param name="ptn"></param>156
private PageListFactory(int page, int pagesize, int total, string ptn)157
{158
this.Total = total;159
this.CurrentPage = page;160
this.PageSize = pagesize;161
this.PageCount = (int)Math.Ceiling(Total * 1.0 / PageSize);162
this.UrlRewritePatten = ptn;163
164
if (page > PageCount)165
{166
CurrentPage = PageCount;167
}168
}169
170
private void PrepareInterzone()171
{172
int flag = 0;173
174
if (CurrentPage > MoreFlag)175
{176
flag = (int)Math.Ceiling(CurrentPage * 1.0 / MoreFlag);177
178
if (flag >= 2)179
{180
StartNum = CurrentPage - MoreFlag;181
182
MorePreviouText = string.Format(MorePreviouText, UrlWithoutPage + QueryStringName + "=" + (CurrentPage - MoreFlag));183
}184
else185
{186
MorePreviouText = "";187
}188
}189
else190
{191
MorePreviouText = "";192
}193
194
int nflag = 0;195
196
if (PageCount - CurrentPage > MoreFlag)197
{198
nflag = (int)Math.Ceiling((PageCount - CurrentPage) * 1.0 / MoreFlag);199
200
if (nflag >= 2)201
{202
EndNum = CurrentPage + MoreFlag;203
204
MoreNextText = string.Format(MoreNextText, UrlWithoutPage + QueryStringName + "=" + (CurrentPage + MoreFlag));205
}206
else207
{208
MoreNextText = "";209
}210
}211
else212
{213
EndNum = PageCount;214
215
MoreNextText = "";216
}217
}218
219
/// <summary>220
/// 准备所有的参数221
/// </summary>222
private void Prepare()223
{224
this.UrlWithoutPage = MakeUrl();225
226
PrepareInterzone();227
228
229
if (CurrentPage == 1)230
{231
FirstPageText = string.Format(FirstPageText, "javascript:;");232
PreviouPageText = string.Format(PreviouPageText, "javascript:;");233
}234
else235
{236
FirstPageText = string.Format(FirstPageText, UrlWithoutPage + QueryStringName + "=1");237
PreviouPageText = string.Format(PreviouPageText, UrlWithoutPage + QueryStringName + "=" + (CurrentPage - 1));238
}239
240
if (CurrentPage == PageCount)241
{242
LastPageText = string.Format(LastPageText, "javascript:;");243
NextPageText = string.Format(NextPageText, "javascript:;");244
}245
else246
{247
LastPageText = string.Format(LastPageText, UrlWithoutPage + QueryStringName + "=" + PageCount);248
NextPageText = string.Format(NextPageText, UrlWithoutPage + QueryStringName + "=" + (CurrentPage + 1));249
}250
}251
252
/// <summary>253
/// 获取当前页面的URL，但不包含页码参数254
/// </summary>255
/// <returns></returns>256
private string MakeUrl()257
{258
HttpRequest Request = HttpContext.Current.Request;259
string Url = Request.Url.AbsolutePath.Replace("/", "") + "?";260
string[] queryNames=Request.QueryString.AllKeys;261
System.Collections.Generic.List<string> list = new System.Collections.Generic.List<string>();262
263
string key = string.Empty;264
string value = string.Empty;265
for (int i = 0; i < queryNames.Length; i++)266
{267
key = queryNames[i];268
value = Request.QueryString[key];269
if (key == QueryStringName||value=="")270
{271
continue;272
}273
list.Add(key + "=" + value);274
}275
276
string paras = Url + string.Join("&", list.ToArray());277
278
if (list.Count > 0)279
{280
paras += "&";281
}282
283
return paras;284
}285
286
public string CreateHtml()287
{288
Prepare();289
290
StringBuilder sb = new StringBuilder();291
sb.AppendLine(BoxBeginTag);292
sb.AppendLine(FirstPageText);293
sb.AppendLine(PreviouPageText);294
sb.AppendLine(MorePreviouText);295
for (int i = StartNum; i < EndNum+1; i++)296
{297
if (i == CurrentPage)298
{299
sb.AppendFormat(CurrentNumItem, i.ToString());300
continue;301
}302
303
sb.AppendFormat(NumItem, UrlWithoutPage + QueryStringName + "=" + i, i.ToString());304
}305
sb.AppendLine(MoreNextText);306
sb.AppendLine(NextPageText);307
sb.AppendLine(LastPageText);308
309
if (PageCount > 20)310
{311
sb.Append(InputToPageText.Replace("{maxpage}", PageCount.ToString()).Replace("{url}", UrlWithoutPage + "page="));312
}313
314
sb.AppendLine(BoxEndTag);315
return sb.ToString();316
}317
318
/// <summary>319
/// 获取分页html320
/// </summary>321
/// <param name="page">当前页</param>322
/// <param name="pagesize">页大小(几条记录一页)</param>323
/// <param name="total">总记录数</param>324
/// <param name="ptn">未作,URL重写表达式</param>325
/// <returns></returns>326
public static string GetHtml(int page, int pagesize, int total, string ptn)327
{328
PageListFactory factory = new PageListFactory(page, pagesize, total, ptn);329
330
return factory.CreateHtml();331
}332
333
/// <summary>334
/// 获取分页html335
/// </summary>336
/// <param name="page">当前页</param>337
/// <param name="pagesize">页大小(几条记录一页)</param>338
/// <param name="total">总记录数</param>339
/// <returns></returns>340
public static string GetHtml(int page, int pagesize, int total)341
{342
return GetHtml(page, pagesize, total, "");343
}344
}345
}
