祝賀一下~好不容易把分頁做出來了。之前都是用GridVIEw自帶的分頁,版式難看不說,還極不優化,一次取出所有記錄,然後進行假分頁。
現在用ASPNetPager控件做出的真分頁,就好多了,不過還有改進的地方,SQL語句如果換成存儲過程效率會更高。
首先在SqlHelper.cs(DAL層中的數據庫助手類,用於寫可以復用的基本增刪查改方法)中加上以下代碼:
Code
/**//// <summary>
/// 獲取分頁數據
/// </summary>
/// <param name="sql">sql語句</param>
/// <param name="currentPage">當前頁</param>
/// <param name="pagesize">每頁顯示數</param>
/// <param name="recordcount"></param>
/// <returns></returns>
public static DataSet GetPage(string sql, int currentPage, int pagesize, out int recordcount)
{
openCon();
sqlDs.Clear();
sqlDa = new SqlDataAdapter(sql, sqlConn);
int startRow = (currentPage - 1) * pagesize;
sqlDa.Fill(sqlDs, startRow, pagesize, "table");
recordcount = GetPageRecord(sql);
closeCon();
return sqlDs;
}
//返回總的記錄數
public static int GetPageRecord(string sql)
{
openCon();
sql = Regex.Replace(sql, "order by.*", "");
sql = "select count(*) from (" + sql + ") as temp";
sqlCmd = new SqlCommand(sql, sqlConn);
int recordcount = int.Parse(sqlCmd.ExecuteScalar().ToString());
closeCon();
return recordcount;
}
然後在BLL層新建一個PageManager.cs的分頁操作類,封裝一下DAL層方法:
Code
/**//// <summary>
/// 獲取分頁數據
/// </summary>
/// <param name="sql">sql語句</param>
/// <param name="currentPage">當前頁</param>
/// <param name="pagesize">每頁顯示數</param>
/// <param name="recordcount"></param>
/// <returns></returns>
public static DataSet GetPage(string sql, int currentPage, int pagesize, out int recordcount)
{
return SQLHelper.GetPage(sql, currentPage, pagesize, out recordcount);
}
ASP.Net需分頁的數據綁定處是這樣的:
Code
<ASP:Repeater ID="repNewsList" runat="server">
<ItemTemplate>
<tr>
<td align="center"><a href="list.ASPx?caid=<%# Eval("caId") %>"><%# Eval("name") %></a></td>
<td align="center"><%# Eval("createTime") %></td>
</tr>
</ItemTemplate>
</ASP:Repeater>
然後在綁定代碼下方加上分頁控件(當然這個可以隨便放,怎麼好看怎麼放):
Code
<!--分頁控件-->
<div >
<webdiyer:AspNetPager ID="ASPNetPager1" runat="server" AlwaysShow="True" UrlPaging="true"
FirstPageText="首頁" LastPageText="末頁" NextPageText="下一頁" NumericButtonCount="5"
onpagechanged="ASPNetPager1_PageChanged" PagingButtonSpacing="10px" NumericButtonTextFormatString="[{0}]"
PrevPageText="上一頁" SubmitButtonText="Go" TextAfterPageIndexBox="頁"
TextBeforePageIndexBox="轉到" ShowCustomInfoSection="Left"
CustomInfoHtml="目前是第%CurrentPageIndex%頁 / 總共%PageCount%頁">
</webdiyer:ASPNetPager>
</div>
最後在ASPx.cs中加上數據的分頁綁定方法(這裡的SQL語句要根據列表顯示的需要進行調整):
Code
/**//// <summary>
/// 綁定帶有分頁的新聞列表
/// </summary>
public void BindRepeater()
{
int caid = int.Parse(Request.QueryString["caid"]);
string Sql = "select * from news where caId=" + caid + " order by createTime desc";
int CurrentPage = ASPNetPager1.CurrentPageIndex;
int PageSize = ASPNetPager1.PageSize;
int RecordCount;
DataSet ds = PageManager.GetPage(Sql, CurrentPage, PageSize, out RecordCount);
ASPNetPager1.RecordCount = RecordCount;
ASPNetPager1.CustomInfoHtml += " 共" + RecordCount + "條新聞</b>";
repNewsList.DataSource = ds;
repNewsList.DataBind();
}
別忘了,在page_load調用一下:
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
BindRepeater();
}
}
還有分頁控件的PageChanged事件裡也調用一下:
protected void ASPNetPager1_PageChanged(object sender, EventArgs e)
{
BindRepeater();
}
最後再補充一個非常漂亮的翻頁樣式,清爽超酷型~:
Code
<style>
.anpager
{}{
font-size:12px;
}
.anpager .cpb
{}{
background:#1F3A87 none repeat scroll 0 0;
border:1px solid #CCCCCC;
color:#FFFFFF;
font-weight:bold;
margin:5px 4px 0 0;
padding:4px 5px 0;
}
.anpager a
{}{
background:#FFFFFF none repeat scroll 0 0;
border:1px solid #CCCCCC;
color:#1F3A87;
&n
bsp; margin:5px 4px 0 0;
padding:4px 5px 0;
text-decoration:none
}
.anpager a:hover
{}{
background:#1F3A87 none repeat scroll 0 0;
border:1px solid #1F3A87;
color:#FFFFFF;
}
</style>
然後在ASPNetPager中加上以下四個屬性,搞定!
CSSClass="anpager"
CurrentPageButtonClass="cpb"
CustomInfoClass=""
CustomInfoTextAlign="Left"
OK,分頁大功告成。 本人QQ:3053166 希望和.Net愛好者交流~