我们可以利用DataGrid的ItemCreat()方法来实现DataGrid中页脚(Foot)和页导航栏的自定义样式。ItemCreat,顾名思义,就是在数据项创建时发生的事件,对于DataGrid来讲,表头(Head)、数据项(DataItem)、页脚(Foot)、页导航(Pager)都是一个Item。下面的例子将实现页脚与页导航的自定义样式。我们希望在页脚现实DataGrid中的总页数,对于页导航中的LinkButton,我们希望能够以[<Page Index>]的格式来显示,对于当前页的页导航索引,我们希望显示成Page <PageIndex>的格式。
前台文件:
<%@ Page language="c#" Codebehind="Chp2_DGPagination.aspx.cs" AutoEventWireup="false" Inherits="DemoProject.Chp2_DGPagination" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>Chp2_DGPagination</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<link href="myStyle.css" type="text/css" rel="stylesheet">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<asp:DataGrid id="Products" runat="server" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px"
BackColor="White" CellPadding="4" AutoGenerateColumns="False" Font-Size="X-Small" Font-Names="Verdana"
AllowPaging="True" Width="600px" ShowFooter="True" GridLines="Horizontal">
<SelectedItemStyle Font-Bold="True" ForeColor="#663399" BackColor="#FFCC66"></SelectedItemStyle>
<ItemStyle ForeColor="#330099" BackColor="White"></ItemStyle>
<HeaderStyle Font-Bold="True" ForeColor="#FFFFCC" BackColor="#990000"></HeaderStyle>
<FooterStyle ForeColor="#330099" BackColor="#FFFFCC"></FooterStyle>
<Columns>
<asp:BoundColumn DataField="ProductName" HeaderText="ProductName">
<HeaderStyle Width="40%"></HeaderStyle>
</asp:BoundColumn>
<asp:BoundColumn DataField="QuantityPerUnit" HeaderText="QuantityPerUnit">
<HeaderStyle Width="40%"></HeaderStyle>
</asp:BoundColumn>
<asp:BoundColumn DataField="UnitsInStock" HeaderText="UnitsInStock">
<HeaderStyle Width="20%"></HeaderStyle>
</asp:BoundColumn>
</Columns>
<PagerStyle HorizontalAlign="Center" ForeColor="#330099" BackColor="#FFFFCC" Mode="NumericPages"></PagerStyle>
</asp:DataGrid>
</form>
</body>
</HTML>
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在后台代码中,有如下几点需要注意:
1,SetBind()方法用于实现DataGrid与数据源的绑定,因为每次在指定DataGrid的CurrentPageIndex属性后,都要重新绑定数据源才能实现分页;
2, InitializeComponent()方法中,添加如下两句代码,声明两个事件:
this.Products.ItemCreated += new System.Web.UI.WebControls.DataGridItemEventHandler(this.Products_ItemCreated);
this.Products.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.Products_PageIndexChanged);
3,ItemCreated()方法中的DataGridEventArgs参数e返回DataGrid创建的Item的类型,即ListItemType。Item就相当于一个TableRow,我们在属性生成器中生成的样式都是针对于<TR>的,所以如果对其中的内容自定义,只有通过ItemCreat方法。TableCell pager = (TableCell)e.Item.Controls[0]; 这句代码用pager来代替这个TableRow中的<TD>,而其中的内容(pager.Controls[])正是也导航按钮(LinkButton或Label),通过pager.Controls.Count返回控件数目,也就是页数,然后通过for循环结构,逐个判断pager中的控件类型,进行相应的转换。实现页导航的自定义;
或者:
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原贴:http://www.mscenter.edu.cn/blog/drummer/archive/2005/10/18/6249.html