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【twfx118 】Asp.net分页控件

上一篇 / 下一篇 2008-07-23 13:25:55 / 个人分类：.net

建立一个用户控件：Pager.ascx，然后后台代码修改为：

1public partial class Pager : System.Web.UI.UserControl
2    {
3        private string _UrlFormat;
4        private int _PageSize = 10;
5        private int _RecordCount;
6        private int _PageCount = 5;
7
8        /// <summary>
9        /// 连接格式
10        /// </summary>
11        public string UrlFormat
12        {
13            get
14            {
15                return _UrlFormat;
16            }
17            set
18            {
19                _UrlFormat = value;
20            }
21        }
22
23        /// <summary>
24        /// 页长度
25
26
27        /// </summary>
28        public int PageSize
29        {
30            get
31            {
32                return _PageSize;
33            }
34            set
35            {
36                _PageSize = value;
37            }
38        }
39
40        /// <summary>
41        /// 当前页码
42        /// </summary>
43        public int PageIndex
44        {
45            get
46            {
47                string Pageindex = HttpContext.Current.Request.QueryString["i"];
48                if (Pageindex != null)
49                {
50                    return int.Parse(Pageindex);
51                }
52                return 1;
53            }
54        }
55
56        /// <summary>
57        /// 总记录数
58        /// </summary>
59        public int RecordCount
60        {
61            get
62            {
63                return _RecordCount;
64            }
65            set
66            {
67                _RecordCount = value;
68            }
69        }
70
71        /// <summary>
72        /// 两边显示个数
73        /// </summary>
74        public int PageCount
75        {
76            get
77            {
78                return _PageCount;
79            }
80            set
81            {
82                _PageCount = value;
83            }
84        }
85
86        protected override void Render(HtmlTextWriter writer)
87        {
88            if (RecordCount == 0)
89                return;
90            int SumPage = (RecordCount + PageSize - 1) / PageSize;
91
92            int start = PageIndex - PageCount;
93            int end = PageIndex + PageCount;
94
95            //以PageIndex为中心，前后个显示Page个页码导航
96
97
98            if (SumPage > (PageCount * 2 + 1))
99            {
100                if (start < 1)
101                {
102                    start = 1;
103                    end = start + 10;
104                }
105                else if (end > SumPage)
106                {
107                    start = SumPage - 10;
108                    end = SumPage;
109                }
110            }
111            else
112            {
113                start = 1;
114                end = SumPage;
115            }
116
117
118
119            string tmp = "<a href=\"" + UrlFormat + "\">[{0}]</a>";
120            StringBuilder sb = new StringBuilder(string.Format("页次:{0}/{1} 每页:{2} 共计:{3} 条 ", PageIndex, SumPage, PageSize, RecordCount));
121            if (PageIndex > 1)
122            {
123                sb.Append(string.Format("<a href=\"" + UrlFormat + "\">首页</a> ", 1));
124                sb.Append(string.Format(" <a href=\"" + UrlFormat + "\">上一页</a> ", PageIndex - 1));
125            }
126            for (int i = start; i <= end; i++)
127            {
128                if (i == PageIndex)
129                {
130                    sb.Append(" <strong>" + PageIndex.ToString() + "</strong> ");
131                }
132                else
133                {
134                    sb.Append(string.Format(tmp, i));
135                }
136                sb.Append(" ");
137            }
138            if (PageIndex < SumPage)
139            {
140                sb.Append(string.Format(" <a href=\"" + UrlFormat + "\">下一页</a> ", PageIndex + 1));
141                sb.Append(string.Format(" <a href=\"" + UrlFormat + "\">尾页</a>", SumPage));
142            }
143            writer.Write(sb.ToString());
144        }
145        protected void Page_Load(object sender, EventArgs e)
146        {
147
148        }
149    }使用方法：

把Pager拖拽到页面上，进入页面后台代码，设置如下：

1            Pager1.UrlFormat = "?i={0}";//分页格式
2            int recordcount, pagecount;
3            Repeater1.DataSource = 数据源;
4            Repeater1.DataBind();
5            Pager1.RecordCount = recordcount;
6