一个比较好看的网页翻页效果_[Asp.Net教程] 显示效果：1 2 3 4 5>> ，点击了４后又显示 ，4 5 6 7 8>>并转到第４页 ，如果总共有１0页， 显示到6 7 8 9 10>>就不再显示了。

.aspx


【当前页: | 总记录数:】
<%=strpg %>


.cs

protected string strpg = string.Empty;
protected string strUrl = "aa.aspx";
protected int PgSize = 15;
protected string wherestr = string.Empty;
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
int curpg = GetIdx();
if (Request.QueryString["val"] != null)
{
wherestr = Request.QueryString["val"].ToString();
string strVal = "where NewsTitle like '%" + wherestr + "%' ";
Prepg(curpg, strVal);
}
else
{
Prepg(curpg, wherestr);
}

}
}

#region 加载页面
protected void Prepg(int Idx, string strWhere)
{
.....//获取一个dataset
int RecordCount = Convert.ToInt32(ds.Tables[1].Rows[0].ItemArray[0].ToString());
strpg = Getpgstr(RecordCount, PgSize, Idx, strUrl);
lblcurpg.Text = Idx.ToString();
lblRecord.Text = RecordCount.ToString();
}
#endregion

#region 获取分页控件
protected string Getpgstr(int total, int per, int page, string query_string)
{
return pagination(total, per, page, query_string);
}
#endregion

protected void btnSearch_Click(object sender, EventArgs e)
{
Response.Redirect(strUrl + "?val=" + txtNew.Text);
}

#region 获取当前页
protected int GetIdx()
{
int curpg;
if (Request.QueryString["page"] == null)
{
curpg = 1;
}
else
{
curpg = Convert.ToInt32(Request.QueryString["page"].ToString());
}
return curpg;
}
#endregion
public static string pagination(int total, int per, int page, string query_string)
{
//page表是当前页
//per表示每页显示记录数
int allpage = 0;
int next = 0;
int pre = 0;
int startcount = 0;
int endcount = 0;
string pagestr = "";
if (page < 1) { page = 1; }
//计算总页数
if (per != 0)
{
allpage = (total / per);
allpage = ((total % per) != 0 ? allpage + 1 : allpage);
allpage = (allpage == 0 ? 1 : allpage);
}
next = page + 1;
pre = page - 1;
startcount = (page + 5) > allpage ? allpage - 9 : page - 4;//中间页起始序号
//中间页终止序号
endcount = page < 5 ? 10 : page + 5;
if (startcount < 1) { startcount = 1; } //为了避免输出的时候产生负数，设置如果小于1就从序号1开始
if (allpage < endcount) { endcount = allpage; }//页码+5的可能性就会产生最终输出序号大于总页码，那么就要将其控制在页码数之内
pagestr = "共" + allpage + "页&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";

pagestr += page > 1 ? "" + query_string + "?page=1\">首页&nbsp;&nbsp;" + query_string + "?page=" + pre + "\">上一页" : "首页 上一页";
//中间页处理，这个增加时间复杂度，减小空间复杂度
for (int i = startcount; i <= endcount; i++)
{
pagestr += page == i ? "&nbsp;&nbsp;" + i + "" : "&nbsp;&nbsp;" + query_string + "?page=" + i + "\">" + i + "";
}
pagestr += page != allpage ? "&nbsp;&nbsp;" + query_string + "?page=" + next + "\">下一页&nbsp;&nbsp;" + query_string + "?page=" + allpage + "\">末页" : " 下一页 末页";

return pagestr;
}



来源：csdn