ASP.NET中自定义DataGrid分页设置的实现

　　先定义aspx页面，注意allowcustompaging要设为"false"：

＜body＞
＜form id="dictlist" method="post" runat="server"＞
＜table cellspacing="0" width="100%" border="1"＞
＜tr＞
＜td bgcolor="#c0c000"＞信息：＜font face="arial" color="#ffffff"＞数据维护＜/font＞
＜/td＞
＜/tr＞
＜tr＞
＜td＞＜font face="宋体"＞＜/font＞＜/td＞
＜/tr＞
＜tr＞
＜td＞＜asp:datagrid id="mydatagrid" runat="server" width="100%" pagesize="20" allowpaging="true" autogeneratecolumns="false" datakeyfield="fdictid"＞
＜selecteditemstyle backcolor="#ffc080"＞＜/selecteditemstyle＞
＜headerstyle backcolor="#c0c000"＞＜/headerstyle＞
＜columns＞
＜asp:buttoncolumn text="选择" headertext="选择" commandname="select"＞
＜headerstyle font-bold="true" horizontalalign="center" width="8%"＞＜/headerstyle＞
＜itemstyle font-bold="true" horizontalalign="center"＞＜/itemstyle＞
＜/asp:buttoncolumn＞
＜asp:boundcolumn datafield="fdictid" sortexpression="fdictid asc" headertext="标识号"＞
＜headerstyle width="15%"＞＜/headerstyle＞
＜/asp:boundcolumn＞
＜asp:boundcolumn datafield="fnamecn" sortexpression="fnamecn asc" headertext="名称"＞
＜headerstyle width="15%"＞＜/headerstyle＞
＜/asp:boundcolumn＞
＜asp:boundcolumn datafield="fnameen" sortexpression="fnameen asc" headertext="英文名称"＞
＜headerstyle width="15%"＞＜/headerstyle＞
＜/asp:boundcolumn＞
＜asp:boundcolumn datafield="fnote" sortexpression="fnote asc" headertext="描叙"＞
＜headerstyle width="47%"＞＜/headerstyle＞
＜/asp:boundcolumn＞
＜/columns＞
＜pagerstyle visible="false"＞＜/pagerstyle＞
＜/asp:datagrid＞＜/td＞
＜/tr＞
＜/table＞
＜table cellspacing="0" width="100%" bgcolor="#ff9966" border="1"＞
＜tr＞
＜td align="right"＞＜asp:linkbutton id="btnfirst" runat="server" commandargument="fist"＞首页＜/asp:linkbutton＞  
＜asp:linkbutton id="btnprev" runat="server" width="36px" commandargument="prev"＞上一页＜/asp:linkbutton＞  
＜asp:linkbutton id="btnnext" runat="server" commandargument="next"＞下一页＜/asp:linkbutton＞  
＜asp:linkbutton id="btnlast" runat="server" commandargument="last"＞末页＜/asp:linkbutton＞  
＜asp:label id="lblcurrentindex" runat="server"＞＜/asp:label＞/＜asp:label id="lblpagecount" runat="server"＞＜/asp:label＞  
跳转到＜asp:textbox id="txtgopage" runat="server" width="30px" cssclass="textbox"＞＜/asp:textbox＞
＜asp:button id="btngo" runat="server" text="go" cssclass="button" width="29px"＞＜/asp:button＞＜/td＞
＜/tr＞
＜/table＞
＜/form＞

codebehind主要功能部分代码：

private void page_load(object sender, system.eventargs e)
{
// 在此处放置用户代码以初始化页面
myconnection = new sqlconnection(system.configuration.configurationsettings.appsettings["connstring"]);

if (!ispostback)
bindgrid();
}

public void bindgrid()
{
string strsql ="select * from t_dict ";
sqldataadapter mycommand = new sqldataadapter(strsql, myconnection);
dataset ds = new dataset();
mycommand.fill(ds, "t_dict");
mydatagrid.datasource=ds.tables["t_dict"].defaultview;
mydatagrid.databind();
showstatspage();
}

private void pagerbuttonclick(object sender, system.eventargs e)
{
//获得linkbutton的参数值
string arg = ((linkbutton)sender).commandargument;

switch(arg)
{
case ("next"):
if (mydatagrid.currentpageindex ＜ (mydatagrid.pagecount - 1))
mydatagrid.currentpageindex ++;
break;
case ("prev"):
if (mydatagrid.currentpageindex ＞ 0)
mydatagrid.currentpageindex --;
break;
case ("fist"):
mydatagrid.currentpageindex=0;
break;
case ("last"):
mydatagrid.currentpageindex = (mydatagrid.pagecount - 1);
break;
default:
//本页值
mydatagrid.currentpageindex = convert.toint32(arg);
break;
}
bindgrid();
}

void showstatspage()
{
//显示页面信息
lblcurrentindex.text = "[＜font color="blue"＞当前为第：" + ((int)mydatagrid.currentpageindex+1) + "页＜/font＞]";
lblpagecount.text = "[＜font color="blue"＞共：" + mydatagrid.pagecount + "页＜/font＞]";
}

private void mydatagrid_pageindexchanged(object source, system.web.ui.webcontrols.datagridpagechangedeventargs e)
{
//处理按下数字的方法
mydatagrid.currentpageindex = e.newpageindex;
bindgrid();
}

private void btngo_click(object sender, system.eventargs e)
{
//页面直接跳转的代码
if(txtgopage.text.trim()!="")
{
int pagei=int32.parse(txtgopage.text.trim())-1;
if (pagei ＞=0 && pagei ＜ (mydatagrid.pagecount))
mydatagrid.currentpageindex = pagei ;
}
bindgrid();
}
//----------------------翻页代码结束