ASPNETPager常用属性

今天是第一次用，感觉挺好的，这里记录下，防止以后忘记，嘿嘿；

       <webdiyer:aspnetpager id="AspNetPager1" runat="server" 
           alwaysshow="True"
           PageSize="5" 
           custominfosectionwidth="20%" 
           custominfotextalign="Right" 
           firstpagetext="第一页"
           horizontalalign="Left" 
           lastpagetext="末一页" 
           navigationbuttontype="Image"  
           nextpagetext="后一页"
           pageindexboxtype="TextBox"
           pagingbuttonspacing="8px"
           prevpagetext="前一页" 
           showcustominfosection="Right" 
           showpageindexbox="Always" 
           textafterpageindexbox="页" 
           UrlPaging="true" 
           textbeforepageindexbox="跳到第"
           width="97%" 
           onpagechanged="AspNetPager1_PageChanged">
    </webdiyer:aspnetpager>

alwaysshow：总是显示分页控件；

PageSize：指定每页显示的记录数；

custominfosectionwidth：用户自定义信息区的宽度；

custominfotextalign：用户自定义信息区的对齐方式；

firstpagetext：第一页按钮上显示的文本；

horizontalalign：内容水平对齐方式；

lastpagetext：最后页按钮上显示的文本；

navigationbuttontype：第一页、下一页、最后一页按钮的类型；

nextpagetext：下一页按钮上显示的文本；

pageindexboxtype：指示页索引框的显示类型：有TextBOX和dropdownlist两种；

pagingbuttonspacing：导航页按钮的间距；

prevpagetext：上一页按钮的显示的文本；

showcustominfosection：显示当前页和总页信息，默认为不显示，值为LEFT时将显示在页索引前，为right时显示在页索引后；

showpageindexbox：指定页索引文本框或下拉框的显示方式；

textafterpageindexbox：指定页索引文本框或下拉框后的文本；

UrlPaging：是够使用URL传递分页的方式来分页；

textbeforepageindexbox：指定页索引文本框或下拉框前面显示的文本；

width：该控件的宽度；

CustomInfoHTML:指定要显示在用户自定义信息区的用户自定义HTML信息文本

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Bind();
    }
    private void Bind()
    {
        int pageindex = 1;
        int pagenum = AspNetPager1.PageSize;
        if (Request["page"] != null)
        {
            pageindex =Convert.ToInt32(Request["page"]);
        }
        DataSet ds = new DataSet();
        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["constr"].ToString ());
        SqlConnection con1 = new SqlConnection(ConfigurationManager.ConnectionStrings["constr"].ToString());
        SqlDataAdapter sda = new SqlDataAdapter("select top (@pagenum) * from pagetest where id not in (select top  (@pagenum*(@pageindex-1)) id from pagetest)", con);
        sda.SelectCommand.Parameters.AddWithValue("pagenum",pagenum);
        sda.SelectCommand.Parameters.AddWithValue("pageindex",pageindex);
        sda.Fill(ds);
        SqlCommand cmd = new SqlCommand("select count(*) from pagetest", con1);
        con1.Open();
        AspNetPager1.RecordCount =Convert.ToInt32(cmd.ExecuteScalar());
        con.Close();
        AspNetPager1.CustomInfoHTML = "共" + AspNetPager1.RecordCount + "条记录      " + AspNetPager1.CurrentPageIndex + "/" + AspNetPager1.PageCount;
        GridView1.DataSource = ds.Tables[0].DefaultView;
        GridView1.DataBind();
    }
    protected void AspNetPager1_PageChanged(object sender, EventArgs e)
    {
        Bind();
    }
}

深入分析CurrentPageIndex、RecordCount、 PageCount、 PageSize：

pagecount:

public int PageCount
{
    get
    {
        if (this.RecordCount == 0)
        {
            return 1;
        }
        return (int) Math.Ceiling((double) (((double) this.RecordCount) / ((double) this.PageSize)));
    }
}

recordcount:

public int RecordCount
{
    get
    {
        if (this.cloneFrom != null)
        {
            return this.cloneFrom.RecordCount;
        }
        object obj2 = this.ViewState["Recordcount"];
        if (obj2 != null)
        {
            return (int) obj2;
        }
        return 0;
    }
    set
    {
        this.ViewState["Recordcount"] = value;
    }
}

CurrentPageIndex:

public int CurrentPageIndex
{
    get
    {
        if (this.cloneFrom != null)
        {
            return this.cloneFrom.CurrentPageIndex;
        }
        object obj2 = this.ViewState["CurrentPageIndex"];
        int num = (obj2 == null) ? 1 : ((int) obj2);
        if ((num > this.PageCount) && (this.PageCount > 0))
        {
            return this.PageCount;
        }
        if (num < 1)
        {
            return 1;
        }
        return num;
    }
    set
    {
        int pageCount = value;
        if (pageCount < 1)
        {
            pageCount = 1;
        }
        else if (pageCount > this.PageCount)
        {
            pageCount = this.PageCount;
        }
        this.ViewState["CurrentPageIndex"] = pageCount;
    }
}

PageSize:

public int PageSize
{
    get
    {
        int num;
        if ((!string.IsNullOrEmpty(this.UrlPageSizeName) && !base.DesignMode) && (int.TryParse(this.Page.Request.QueryString[this.UrlPageSizeName], out num) && (num > 0)))
        {
            return num;
        }
        if (this.cloneFrom != null)
        {
            return this.cloneFrom.PageSize;
        }
        object obj2 = this.ViewState["PageSize"];
        if (obj2 != null)
        {
            return (int) obj2;
        }
        return 10;
    }
    set
    {
        this.ViewState["PageSize"] = value;
    }
}

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