DATAGRID分页，增加首页、最后一页（源码） _datagrid2.currentpageindex 判断最后一页-优快云博客

private void PageCut_Click(Object sender,System.EventArgs e)
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{
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String commangArg = ((LinkButton)sender).CommandArgument ;
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switch(commangArg)
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{
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//第一页
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case "First":
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{
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DG_ZONE_CONTENT.CurrentPageIndex = 0;
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break;
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}
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//上一页
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case "Prev":
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{
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DG_ZONE_CONTENT.CurrentPageIndex = (int)Math.Max(0,DG_ZONE_CONTENT.CurrentPageIndex - 1);
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break;
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}
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//下一页
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case "Next":
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{
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DG_ZONE_CONTENT.CurrentPageIndex = (int)Math.Min(DG_ZONE_CONTENT.PageCount-1,DG_ZONE_CONTENT.CurrentPageIndex +1);
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break;
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}
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//最后一页
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case "Last":
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{
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DG_ZONE_CONTENT.CurrentPageIndex = DG_ZONE_CONTENT.PageCount -1;
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break;
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}
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default:{break;}
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}
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this.Binder(this.TXT_SEARCH_NAME.Text.Trim().ToUpper(),this.TXT_SEARCH_CD.Text.Trim().ToUpper());
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//控制页面导向按钮的可见性
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　　　　　　IsFirstLastPage();
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}
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/// <summary>
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/// 控制页面导向按钮的可见性
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/// </summary>
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private void IsFirstLastPage()
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{
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if(DG_ZONE_CONTENT.PageCount > 0)
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{
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PageFirst.Visible = true;
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PageLast.Visible = true;
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PageNext.Visible = true;
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PagePrev.Visible = true;
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if(DG_ZONE_CONTENT.PageCount != 1)
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{
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if(DG_ZONE_CONTENT.CurrentPageIndex == 0)
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{
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PagePrev.Enabled = false;
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}
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else
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{
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PagePrev.Enabled = true;
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}
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if(DG_ZONE_CONTENT.CurrentPageIndex == DG_ZONE_CONTENT.PageCount -1)
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{
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PageNext.Enabled = false;
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}
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else
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{
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PageNext.Enabled = true;
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}
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}
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else
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{
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PagePrev.Enabled = false;
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PageNext.Enabled = false;
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}
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}
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else
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{
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PageFirst.Visible = false;
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PageLast.Visible = false;
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PageNext.Visible = false;
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PagePrev.Visible = false;
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}
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}
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private void Binder( string zone, string city)
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{
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bl = new ZoneConten();
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DataTable dt = new DataTable();
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if(zone==""&&city=="")
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{
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dt= bl.ZoneRev("ZONE_INFO");
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}
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else
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{
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dt = bl.zoneSea(zone,city);
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}
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this.DG_ZONE_CONTENT.DataSource = dt;
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this.DG_ZONE_CONTENT.DataBind();
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if(dt!=null)
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{
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if(dt.Rows.Count>0)
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{
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int nTotalCode = dt.Rows.Count;
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//int nTotalPage = nTotalCode/10;
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// if(nTotalCode%10>0)
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// {nTotalPage=nTotalPage+1;}
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// int a = 0;
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//this.LBL_TOTAL.Text=nTotalPage.ToString();
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this.LBL_TOTAL.Text = nTotalCode.ToString();
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int nNow = this.DG_ZONE_CONTENT.CurrentPageIndex+1;
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this.LBL_NOW.Text=nNow.ToString();
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}
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}
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else
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{
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this.LBL_TOTAL.Text = "0";
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this.LBL_NOW.Text="1";
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}
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this.IsFirstLastPage();
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}
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< asp:datagrid id ="DG_ZONE_CONTENT" runat ="server" Width ="792px" GridLines ="Horizontal" AutoGenerateColumns ="False"

AllowPaging ="True" BorderColor ="#CC9966" BorderStyle ="None" BorderWidth ="1px" BackColor ="White"

CellPadding ="4" >

< SelectedItemStyle Font-Bold ="True" ForeColor ="#663399" BackColor ="#FFCC66" ></ SelectedItemStyle >

< ItemStyle ForeColor ="#330099" BackColor ="White" ></ ItemStyle >

< HeaderStyle Font-Bold ="True" ForeColor ="#FFFFCC" BackColor ="#99CCFF" ></ HeaderStyle >

< FooterStyle ForeColor ="#330099" BackColor ="#FFFFCC" ></ FooterStyle >

< Columns >

< asp:TemplateColumn HeaderText ="行区代码" >

< HeaderStyle Width ="60px" ></ HeaderStyle >

< ItemTemplate >

<% #DataBinder.Eval(Container,"DataItem.ZONE_CD") %>

< asp:TextBox id =TXT_ZONE_CD_VIS runat ="server" Width ="58px" Height ="20px" Visible ="false" text ='<%#DataBinder.Eval(Container,"DataItem.ZONE_CD")% > '>

</ asp:TextBox >

</ ItemTemplate >

</ asp:TemplateColumn >

< asp:TemplateColumn HeaderText ="行区名" >

< HeaderStyle Width ="100px" ></ HeaderStyle >

< ItemTemplate >

<% # DataBinder.Eval(Container,"DataItem.AERA_NAME") %>

< asp:TextBox id =TXT_ZONE_NAME_VIS runat ="server" Width ="164px" Visible ="False" Text ='<%# DataBinder.Eval(Container,"DataItem.AERA_NAME")% > '>

</ asp:TextBox >

</ ItemTemplate >

</ asp:TemplateColumn >

< asp:TemplateColumn HeaderText ="城市代码" >

< HeaderStyle Width ="200px" ></ HeaderStyle >

< ItemTemplate >

<% # DataBinder.Eval(Container,"DataItem.CITY") %>

< asp:TextBox id =TXT_ZONE_CITY_VIS runat ="server" Width ="135px" Visible ="False" Text ='<%# DataBinder.Eval(Container,"DataItem.CITY")% > '>

</ asp:TextBox >

</ ItemTemplate >

</ asp:TemplateColumn >

< asp:ButtonColumn Text ="修改" CommandName ="Select" >

< HeaderStyle Width ="100px" ></ HeaderStyle >

</ asp:ButtonColumn >

< asp:ButtonColumn Text ="删除" CommandName ="Delete" >

< HeaderStyle Width ="50px" ></ HeaderStyle >

</ asp:ButtonColumn >

</ Columns >

< PagerStyle Visible ="false" HorizontalAlign ="Center" ForeColor ="#330099" BackColor ="#FFFFCC" ></ PagerStyle >

</ asp:datagrid >

</ td >

</ tr >

< tr >

< td >

< asp:linkbutton id ="PageFirst" Runat ="server" CssClass ="Normal" Text ="首页" CommandArgument ="First" ></ asp:linkbutton >  

< asp:linkbutton id ="PagePrev" Runat ="server" CssClass ="Normal" Text ="上一页" CommandArgument ="Prev" ></ asp:linkbutton >  

< asp:linkbutton id ="PageNext" runat ="server" CssClass ="Normal" Text ="下一页" CommandArgument ="Next" ></ asp:linkbutton >  

< asp:linkbutton id ="PageLast" Runat ="server" CssClass ="Normal" Text ="最后一页" CommandArgument ="Last" ></ asp:linkbutton >  

共 < asp:label id ="LBL_TOTAL" runat ="server" > Label </ asp:label >   条记录，当前第

< asp:label id ="LBL_NOW" runat ="server" > Label </ asp:label >   页

</ td >

</ tr >

http://www.cnblogs.com/semye/archive/2007/01/09/615656.html