一个.net分页测试源码

作者：淘特网

出处：淘特网

注：转载请注明出处

<% @ Page Language="C#" %>

<% @ Import Namespace="System.Data" %>

<% @ Import Namespace="System.Data.SqlClient" %>

SqlConnection MyConn;

int PageSize,RecordCount,PageCount,CurrentPage;

public void Page_Load(Object src,EventArgs e)

{

//设定PageSize

PageSize = 5;

//连接语句

string MyConnString = "server=127.0.0.1;database=example;uid=sa;pwd=1234567";

MyConn = new SqlConnection(MyConnString);

MyConn.Open();

//第一次请求执行

if(!Page.IsPostBack)

{

ListBind();

CurrentPage = 0;

ViewState["PageIndex"] = 0;

//计算总共有多少记录

RecordCount = CalculateRecord();

lblRecordCount.Text = RecordCount.ToString();

//计算总共有多少页

PageCount = RecordCount/PageSize;

lblPageCount.Text = PageCount.ToString();

ViewState["PageCount"] = PageCount;

}

//计算总共有多少条记录

public int CalculateRecord()

{

int intCount;

string strCount = "select count(*) as co from TABLE1";

SqlCommand MyComm = new SqlCommand(strCount,MyConn);

SqlDataReader dr = MyComm.ExecuteReader();

if(dr.Read())

{

//intCount = Int32.Parse(dr["co"].ToString());

intCount=(int)dr["co"];

}

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 TABLE1";

DataSet ds = new DataSet();

SqlDataAdapter MyAdapter = new SqlDataAdapter(strSel,MyConn);

MyAdapter.Fill(ds,StartIndex,PageSize,"Score");

return ds.Tables["Score"].DefaultView;

}

public void ListBind()

{

score.DataSource = CreateSource();

score.DataBind();

lbnNextPage.Enabled = true;

lbnPrevPage.Enabled = true;

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;

}

ViewState["PageIndex"] = CurrentPage;

ListBind();

}

</script>

<html>

<head>

</head>

<body>

共有<asp:Label id="lblRecordCount" ForeColor="red" runat="server" />条记录 

当前为<asp:Label id="lblCurrentPage" ForeColor="red" runat="server" />/<asp:Label id="lblPageCount" ForeColor="red" runat="server" />页 

<asp:DataList id="score" runat="server"

HeaderStyle-BackColor="#aaaadd"

AlternatingItemStyle-BackColor="Gainsboro"

EditItemStyle-BackColor="yellow"

姓名：<%# DataBinder.Eval(Container.DataItem,"title") %>

<asp:LinkButton id="btnSelect" Text="编辑" CommandName="edit" runat="server" />

</ItemTemplate>

</asp:DataList>

共<%=PageCount%>页

<asp:LinkButton id="lbnPrevPage" Text="上一页" CommandName="prev" OnCommand="Page_OnClick" runat="server" />

<asp:LinkButton id="lbnNextPage" Text="下一页" CommandName="next" OnCommand="Page_OnClick" runat="server" />

</form>

</body>

</html>