1
就一些核心代码
2ClientInfo.cs和ClientinfoAccessObj.cs在学习一中有过了
3
4using System;
5using System.Data;
6using System.Configuration;
7using System.Collections;
8using System.Web;
9using System.Web.Security;
10using System.Web.UI;
11using System.Web.UI.WebControls;
12using System.Web.UI.WebControls.WebParts;
13using System.Web.UI.HtmlControls;
14using System.Collections.Generic;
15
16public partial class GridViewPagingTest : System.Web.UI.Page
17
{
18
private int PageSize = 10; //每页显示记录数
19
20 //当前页码，从1开始,利用ViewState在回发之间保存数据
21 private int curPage
22
{
23 get
24 {
25 return ViewState["curPage"] == null ? 0 : Convert.ToInt32(ViewState["curPage"]);
26
}
27 set
28 {
29 ViewState["curPage"] = value;
30 }
31 }
32
33 //总页数,利用ViewState在回发之间保存数据
34 private int PageCount
35 {
36 get
37 {
38 return ViewState["PageCount"] == null ? 0 : Convert.ToInt32(ViewState["PageCount"]);
39 }
40 set
41 {
42 ViewState["PageCount"] = value;
43 }
44 }
45
46
47 protected void Page_Load(object sender, EventArgs e)
48 {
49 if (!IsPostBack)
50 {
51 //第一次请求
52 curPage = 1;
53 GridView1.DataSource = GetClientsForPage(curPage);//根据当前页获得客户信息
54 lblInfo.Text = string.Format("第{0}页/共{1}页", 1, PageCount);
55 GridView1.DataBind();//绑定数据
56 }
57 }
58 //根据页下标获得页面的客户信息
59 private List<ClientInfo> GetClientsForPage(int pageIndex)
60 {
61 ClientInfoAccessObj accessor = new ClientInfoAccessObj();
62 List<ClientInfo> clients = accessor.GetAllClients();//获得所有客户信息
63 PageCount = clients.Count / PageSize + 1;//将客户信息的总数除以每页显示的记录数获得总页数
64 if (pageIndex > PageCount)
65 return null;
66 int StartIndex = (pageIndex - 1) * PageSize;//获得数据下标
67 List<ClientInfo> ret = new List<ClientInfo>();
68 for (int i = StartIndex; i < StartIndex + PageSize && i < clients.Count; i++)
69 ret.Add(clients[i]);
70 return ret;
71 }
72 protected void btnNext_Click(object sender, EventArgs e)
73 {
74 if (curPage+1>PageCount)//判断当前是否大于页总数
75 {
76 curPage = PageCount;
77 }
78 else
79 {
80 curPage++;
81 }
82 GridView1.DataSource = GetClientsForPage(curPage);
83 lblInfo.Text = string.Format("第{0}页/共{1}页", curPage, PageCount);
84 GridView1.DataBind();
85 }
86 protected void btnPrew_Click(object sender, EventArgs e)
87 {
88 if (curPage - 1 ==0 )//判断当前是否大于页总数
89 {
90 curPage = 1;
91 }
92 else
93 {
94 curPage--;
95 }
96 GridView1.DataSource = GetClientsForPage(curPage);
97 lblInfo.Text = string.Format("第{0}页/共{1}页", curPage, PageCount);
98 GridView1.DataBind();
99 }
100 protected void btnGo_Click(object sender, EventArgs e)
101 {
102 try
103 {
104 int pageIndex = Convert.ToInt32(txtPageIndex.Text);
105 if (pageIndex > PageCount)
106 {
107 pageIndex = PageCount;
108 }
109 if (pageIndex < 1)
110 {
111 pageIndex = 1;
112 }
113 curPage = pageIndex;
114 GridView1.DataSource = GetClientsForPage(curPage);
115 lblInfo.Text = string.Format("第{0}页/共{1}页", curPage, PageCount);
116 GridView1.DataBind();
117 }
118 catch (Exception ex)
119 {
120 ClientScript.RegisterClientScriptBlock(this.GetType(),"info","alert('非法字符');",true);//向页面注入javaScript脚本
121 }
122 }
123
}
124
就一些核心代码2
ClientInfo.cs和ClientinfoAccessObj.cs在学习一中有过了3
4
using System;5
using System.Data;6
using System.Configuration;7
using System.Collections;8
using System.Web;9
using System.Web.Security;10
using System.Web.UI;11
using System.Web.UI.WebControls;12
using System.Web.UI.WebControls.WebParts;13
using System.Web.UI.HtmlControls;14
using System.Collections.Generic;15
16
public partial class GridViewPagingTest : System.Web.UI.Page17
{
18
private int PageSize = 10; //每页显示记录数19
20
//当前页码，从1开始,利用ViewState在回发之间保存数据21
private int curPage22
{
23
get24
{25
return ViewState["curPage"] == null ? 0 : Convert.ToInt32(ViewState["curPage"]);26
}27
set28
{29
ViewState["curPage"] = value;30
}31
}32
33
//总页数,利用ViewState在回发之间保存数据34
private int PageCount35
{36
get37
{38
return ViewState["PageCount"] == null ? 0 : Convert.ToInt32(ViewState["PageCount"]);39
}40
set41
{42
ViewState["PageCount"] = value;43
}44
}45
46
47
protected void Page_Load(object sender, EventArgs e)48
{49
if (!IsPostBack)50
{51
//第一次请求52
curPage = 1;53
GridView1.DataSource = GetClientsForPage(curPage);//根据当前页获得客户信息54
lblInfo.Text = string.Format("第{0}页/共{1}页", 1, PageCount);55
GridView1.DataBind();//绑定数据56
}57
}58
//根据页下标获得页面的客户信息59
private List<ClientInfo> GetClientsForPage(int pageIndex)60
{61
ClientInfoAccessObj accessor = new ClientInfoAccessObj();62
List<ClientInfo> clients = accessor.GetAllClients();//获得所有客户信息63
PageCount = clients.Count / PageSize + 1;//将客户信息的总数除以每页显示的记录数获得总页数64
if (pageIndex > PageCount)65
return null;66
int StartIndex = (pageIndex - 1) * PageSize;//获得数据下标67
List<ClientInfo> ret = new List<ClientInfo>();68
for (int i = StartIndex; i < StartIndex + PageSize && i < clients.Count; i++)69
ret.Add(clients[i]);70
return ret;71
}72
protected void btnNext_Click(object sender, EventArgs e)73
{74
if (curPage+1>PageCount)//判断当前是否大于页总数75
{76
curPage = PageCount;77
}78
else79
{80
curPage++;81
}82
GridView1.DataSource = GetClientsForPage(curPage);83
lblInfo.Text = string.Format("第{0}页/共{1}页", curPage, PageCount);84
GridView1.DataBind();85
}86
protected void btnPrew_Click(object sender, EventArgs e)87
{88
if (curPage - 1 ==0 )//判断当前是否大于页总数89
{90
curPage = 1;91
}92
else93
{94
curPage--;95
}96
GridView1.DataSource = GetClientsForPage(curPage);97
lblInfo.Text = string.Format("第{0}页/共{1}页", curPage, PageCount);98
GridView1.DataBind();99
}100
protected void btnGo_Click(object sender, EventArgs e)101
{102
try103
{104
int pageIndex = Convert.ToInt32(txtPageIndex.Text);105
if (pageIndex > PageCount)106
{107
pageIndex = PageCount;108
}109
if (pageIndex < 1)110
{111
pageIndex = 1;112
}113
curPage = pageIndex;114
GridView1.DataSource = GetClientsForPage(curPage);115
lblInfo.Text = string.Format("第{0}页/共{1}页", curPage, PageCount);116
GridView1.DataBind();117
}118
catch (Exception ex)119
{120
ClientScript.RegisterClientScriptBlock(this.GetType(),"info","alert('非法字符');",true);//向页面注入javaScript脚本121
}122
}123
}124