【转】在asp.net中长内容自动分页的实现-.NET教程

在一篇文章过长时,可以自动的写个小程序对其进行分页.

具体代码:

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

12 public partial class Page : System.Web.UI.Page

13 {

14 private string str;//字符

15 private int strl;//字符总长度

16 private int pagesize;//每页显示的字符数

17 protected void Page_Load(object sender, EventArgs e)

18 {

19 // 在此处放置用户代码以初始化页面

20 str = "1234567891234567898522555";

21 pagesize = 3;

22 strl = str.Length;

23 Response.Write(strl);

24 substr();

25 }

26

27 private void substr()

28 {

29 int ct = Int32.Parse(Request.QueryString["page"]);

30 if (strl == (strl / pagesize) * pagesize)//看看页面的总记录是否能被每页的记录数整除

31 {

32 for (int i = 1; i <= strl / pagesize; i++)

33 {

34 Response.Write("页:<a href=page.aspx?page=" + i + ">" + (i) + "</" + "a>");

35 }

36 string s = str.Substring(pagesize * ct - pagesize, pagesize);

37 Response.Write(s);

38 }

39 else if (ct * pagesize > strl)//在不被整除的情况下,最后一页的设置,如字符长13,每页3,则处理最后那一页的显示

40 {

41 for (int i = 1; i <= (strl / pagesize) + 1; i++)

42 {

43 Response.Write("页:<a href=page.aspx?page=" + i + ">" + (i) + "</" + "a>");

44 }

45 string s = str.Substring((ct - 1) * pagesize, strl - (ct - 1) * pagesize);

46 Response.Write(s);

47 }

48 else //在不被整除的情况下其他页面的显示设置

49 {

50 for (int i = 1; i <= strl / pagesize + 1; i++)

51 {

52 Response.Write("页:<a href=page.aspx?page=" + i + ">" + (i) + "</" + "a>");

53 }

54 string s = str.Substring(pagesize * ct - pagesize, pagesize);

55 Response.Write(s);

56 }

57 }

58 }