DataList 分页

HTML 部分：

<TABLE id="Table2" cellSpacing="1" cellPadding="1" width="540" border="0">
<TR>
<TD align="right">共<asp:label id="lblRecordCount" runat="server">Label</asp:label>条记录  
共<asp:label id="lblPageCount" runat="server">Label</asp:label>页 当前第<asp:label id="lblCurrentPage" runat="server">Label</asp:label>页 
<asp:linkbutton id="lbnFirstPage" runat="server" CommandName="first" OnCommand="Page_OnClick">首页</asp:linkbutton> 
<asp:linkbutton id="lbnPrevPage" CommandName="prev" OnCommand="Page_OnClick" Runat="server">上一页</asp:linkbutton>  
<asp:linkbutton id="lbnNextPage" runat="server" CommandName="next" OnCommand="Page_OnClick">下一页</asp:linkbutton> 
<asp:linkbutton id="lbnLastPage" runat="server" CommandName="last" OnCommand="Page_OnClick">尾页</asp:linkbutton></TD>
</TR>
</TABLE>

Asp.Net DataList 分页的完整代码



.cs 代码

private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
PageSize = 10;
sql="select * from products order by all_time desc ";
if(!Page.IsPostBack)
{
//计算总共有多少记录 
RecordCount = CalculateRecord(); 
//计算总共有多少页
//取整 
PageCount = RecordCount/PageSize; 
if (RecordCount%PageSize > 0) 
PageCount = PageCount + 1; 
lblPageCount.Text = PageCount.ToString(); 
lblRecordCount.Text = RecordCount.ToString(); 
ViewState["PageCount"] = PageCount; 
CurrentPage = 0; 
ViewState["PageIndex"] = 0; 
//绑定 
ListBind();

}
}
public int CalculateRecord() 
{ 
int intCount; 
string strCount = "select count(*) as co from products"; 
SqlConnection Con=new SqlConnection(data.constr);
SqlCommand addCommand=new SqlCommand(strCount,Con);
addCommand.Connection.Open();
SqlDataReader dr;
dr=addCommand.ExecuteReader();
if(dr.Read()) 
{ 
intCount = Int32.Parse(dr["co"].ToString()); 
} 
else 
{ 
intCount = 0; 
} 
dr.Close(); 
return intCount; 
}

ICollection CreateSource() 
{

int StartIndex; 
//设定导入的起终地址 
StartIndex = CurrentPage*PageSize; 
string strSel = "select * from products"; 
SqlConnection Con=new SqlConnection(data.constr);
DataSet ds = new DataSet(); 
SqlDataAdapter MyAdapter = new SqlDataAdapter(strSel,Con); 
MyAdapter.Fill(ds,StartIndex,PageSize,"products"); 
return ds.Tables["products"].DefaultView; 
} 
public void ListBind() 
{ 
dl1.DataSource = CreateSource(); 
dl1.DataBind(); 
lbnNextPage.Enabled = true; 
lbnPrevPage.Enabled = true; 
if(PageCount==0) 
{ 
lblCurrentPage.Text = "0"; 
lbnNextPage.Enabled = false; 
lbnPrevPage.Enabled = false; 
} 
else 
{ 
if(CurrentPage==(PageCount-1)) lbnNextPage.Enabled = false; 
if(CurrentPage==0) lbnPrevPage.Enabled = false; 
lblCurrentPage.Text = (CurrentPage+1).ToString(); 
} 
} 
public void Page_OnClick(Object sender,CommandEventArgs e) 
{ 
CurrentPage = (int)ViewState["PageIndex"]; 
PageCount = (int)ViewState["PageCount"]; 
string cmd = e.CommandName; 
//判断cmd，以判定翻页方向 
switch(cmd) 
{ 
case "next": 
if(CurrentPage<(PageCount-1)) CurrentPage++; 
break; 
case "prev": 
if(CurrentPage>0) CurrentPage--; 
break;
case "first":
CurrentPage=0;
break;
case "last":
CurrentPage=PageCount-1;
break;
}

ViewState["PageIndex"] = CurrentPage;

ListBind();

}