GridView控件自定義分頁詳解

 前些天我寫了關於 <<在存儲過程中實現分頁>>和<<GridView控件事件詳解 >> ,後來又有一些人問我怎樣在GridVIEw中應用這個東東!其實很簡單,主要是怎麼保存當前頁面的頁碼PageIndex問題,不過把這個解決了什麼都好辦了.因為在分頁過程中:PageSize是一定的,我們可以用一個屬性來表示.保存PageIndex好多中方法,而且數據不是很龐大,基本不會好太多的資源.還是一句老話,話再多都沒有例子直觀.

  在這裡我們將用一個隱藏字段來保存這個PageIndex,即當前頁碼.當點擊上一頁時,將它的值減一,知道為0,要注意的一點這裡的第一頁頁碼是0而不是1.下面看看代碼,然後我們再分析分析!
 1<ASP:GridVIEw ID="NewsGrid" runat="server" AutoGenerateColumns="False" AllowPaging="false" Width="100%">
 2            <Columns>
 3                <ASP:BoundField DataFIEld="NewsId" HeaderText="新聞ID"/>
 4                <asp:HyperLinkField DataNavigateUrlFIElds="NewsId" DataNavigateUrlFormatString="~/Details.ASPx?ID={0}"
 5                    DataTextFIEld="Title" HeaderText="新聞標題"  ItemStyle-Width="70%"/>
 6                <ASP:BoundField DataFIEld="PostTime" HeaderText="發布時間"/>
 7                <ASP:CommandFIEld HeaderText="新聞管理" ShowCancelButton="False" ShowDeleteButton="True"
 8                    ShowEditButton="True"/>
 9            </Columns>
10        </ASP:GridVIEw>
11        <div >
12        <ASP:HiddenFIEld ID="CurrentPage" runat="server" Value="0"/>
13        <asp:LinkButton ID="First" runat="server" CommandArgument="first" OnClick="PagerButton_Click">首 頁</ASP:LinkButton>
14        <asp:LinkButton ID="Prev" runat="server" CommandArgument="prev" OnClick="PagerButton_Click">上一頁</ASP:LinkButton>
15        <asp:LinkButton ID="Next" runat="server" CommandArgument="next" OnClick="PagerButton_Click">下一頁</ASP:LinkButton>
16        <asp:LinkButton ID="Last" runat="server" CommandArgument="last" OnClick="PagerButton_Click">尾 頁</ASP:LinkButton>
17        </div>  CS文件中的代碼:
 1        protected void PagerButton_Click(object sender, EventArgs e)
 2        {
 3      int pageIndx = Convert.ToInt32(CurrentPage.Value);
 4            int totals = NewsManager.GetNews(0, pageSize).TotalRecords;
 5            int pages = (totals % pageSize) == 0 ? (totals / pageSize) : (totals / pageSize + 1);
 6            string arg = ((LinkButton)sender).CommandArgument.ToString().ToLower();
 7            switch (arg)
 8            {
 9                case "prev":
10                    if (pageIndx > 0)
11                    {
12                        pageIndx -= 1;
13                    }
14                    break;
15                case "next":
16                    if (pageIndx < pages - 1)
17                    {
18                        pageIndx += 1;
19                    }
20                    break;
21                case "last":
22                    pageIndx = pages - 1;
23                    break;
24                default:
25                    pageIndx = 0;
26           &nbsp;        break;
27            }
28            CurrentPage.Value = pageIndx.ToString();
29            NewsGrid.DataSource = NewsManager.GetNews(pageIndx , pageSize).EntitIEs;
30            NewsGrid.DataBind();
31        }  
  是不是很簡單啊,看了代碼就都懂了,關於用按鈕傳參數在這裡就不多說了,還有一個就是EntitIEs屬性,在<<應用實體類EntitySet實現類似的范型功能 >>這篇文章中可以找到
http://www.cnblogs.com/xdotnet/archive/2006/09/29/gridvIEw_paging_myself.Html