DATAGRID分页，增加首页、最后一页（源码）

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private void PageCut_Click(Object sender,System.EventArgs e)
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{
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//取页码跳转标志（上一页，下一页）
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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