前臺：
<head runat="server">
<title></title>
<script src="js/Jquery1.7.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$('#txtPageindex').focus(function () {
$(this).val("");
})
})
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Height="230px"
Width="859px">
<Columns>
<asp:BoundField DataField="Id" HeaderText="編號" />
<asp:BoundField DataField="NewsTitle" HeaderText="標題" />
<asp:BoundField DataField="NewsContent" HeaderText="內容" />
<asp:BoundField DataField="CreateTime" DataFormatString="{0:yyyy-MM-dd hh:mm:ss}"
HeaderText="創建時間" />
</Columns>
</asp:GridView>
</div>
<div>
<asp:LinkButton ID="btnFirst" runat="server" onclick="btnFirst_Click">第一頁</asp:LinkButton>
<asp:LinkButton
ID="btnPre" runat="server" onclick="btnPre_Click">上一頁</asp:LinkButton>
<asp:LinkButton ID="btnNext"
runat="server" onclick="btnNext_Click">下一頁</asp:LinkButton>
<asp:LinkButton ID="btnLast" runat="server" onclick="btnLast_Click">最後一頁</asp:LinkButton><asp:TextBox
ID="txtPageindex" runat="server"></asp:TextBox>
<asp:LinkButton ID="LinkButton5" runat="server" onclick="LinkButton5_Click">Go</asp:LinkButton>
</div>
</form>
</body>
後臺：
namespace WebApplication1
{
public partial class WebForm1 : System.Web.UI.Page
{
int pagesize = 10;
int pageindex = 1;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ViewState["pageindex"] = 1;
GetLastPageindex();
LoadData();
}
}
private void GetLastPageindex()
{
BLL.T_News1 bnews = new BLL.T_News1();
int totalcount= bnews.GetRecordCount("");
if (totalcount % pagesize == 0)
{
ViewState["lastpageindex"] = totalcount / pagesize;
}
else
{
ViewState["lastpageindex"] = totalcount / pagesize+1;
}
}
private void LoadData()
{
BLL.T_News1 bnews = new BLL.T_News1();
DataTable dt = bnews.GetListDataTable(pagesize, Convert.ToInt32(ViewState["pageindex"]));
this.GridView1.DataSource = dt;
this.GridView1.DataBind();
}
protected void btnFirst_Click(object sender, EventArgs e)
{
ViewState["pageindex"] = 1;
LoadData();
}
protected void btnPre_Click(object sender, EventArgs e)
{
int pageindex = Convert.ToInt32(ViewState["pageindex"]);
if (pageindex>1)
{
pageindex--;
ViewState["pageindex"] = pageindex;
LoadData();
}
}
protected void btnNext_Click(object sender, EventArgs e)
{
int pageindex = Convert.ToInt32(ViewState["pageindex"]);
if (pageindex<Convert.ToInt32(ViewState["lastpageindex"]))
{
pageindex++;
ViewState["pageindex"] = pageindex;
LoadData();
}
}
protected void btnLast_Click(object sender, EventArgs e)
{
ViewState["pageindex"] = ViewState["lastpageindex"];
LoadData();
}
protected void LinkButton5_Click(object sender, EventArgs e)
{
int result;
if (int.TryParse(txtPageindex.Text, out result) == true)
{
ViewState["pageindex"] = txtPageindex.Text.Trim();
LoadData();
}
else
{
txtPageindex.Text = "請輸入合法的數字";
}
}
}
}
BLL
public int GetRecordCount(string strWhere)
{
return dal.GetRecordCount(strWhere);
}
public DataTable GetListDataTable(int pagesize, int pageindex)
{
return dal.GetListDataTable(pagesize, pageindex);
}
DAL
public int GetRecordCount(string strWhere)
{
StringBuilder strSql=new StringBuilder();
strSql.Append("select count(1) FROM T_News1 ");
if(strWhere.Trim()!="")
{
strSql.Append(" where "+strWhere);
}
object obj = DbHelperSQL.GetSingle(strSql.ToString());
if (obj == null)
{
return 0;
}
else
{
return Convert.ToInt32(obj);
}
}
public DataTable GetListDataTable(int PageSize, int PageIndex)
{
SqlParameter[] parameters = {
new SqlParameter("@PageSize", SqlDbType.Int),
new SqlParameter("@PageIndex", SqlDbType.Int)
};
parameters[0].Value = PageSize;
parameters[1].Value = PageIndex;
return DbHelperSQL.RunProcedureDataTable("pro_fenye", parameters);
}