下面的代码实现格式化DataGrid的列，也即是将数据原中的0,1值转换成实际的文字的功能，主要是在数据绑定的帮定事件。
查看例子
首先准备数据源，数据源采用数据库、XML、数组等都可以。下面以XML做例子。Contacts.xml文件如下：
<?xml version="1.0" encoding="gb2312" standalone="yes"?>
<Contacts>
<Contact>
<Email>myaddress@mycompany.com</Email>
<FirstName>E章</FirstName>
<LastName>孟子</LastName>
<Manager>0</Manager>
</Contact>
<Contact>
<Email>youraddress@yourcompany.com</Email>
<FirstName>宪会</FirstName>
<LastName>孟</LastName>
<Manager>1</Manager>
</Contact>
<Contact>
<Email>mm@mmm.mm</Email>
<FirstName>Lover</FirstName>
<LastName>Net</LastName>
<Manager>0</Manager>
</Contact>
<Contact>
<Email>xxx@xxxx.xx</Email>
<FirstName>NET开发者园地</FirstName>
<LastName/>
<Manager>0</Manager>
</Contact>
<Contact>
<Email>hhh@hhh.hh</Email>
<FirstName>XML开发者园地</FirstName>
<LastName/>
<Manager>1</Manager>
</Contact>
</Contacts>
FormatDataGridVB.ASPx
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="FormatDataGridVB.aspx.vb"
Inherits="aspx<a href="http://dev.21tx.com/web/" target="_blank">Web</a>.FormatDataGridVB" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0">
<meta name="CODE_LANGUAGE" Content="<a href="http://dev.21tx.com/dotnet/csharp/" target="_blank">C#</a>">
<meta name="vs_defaultClientScript" content="<a href="http://dev.21tx.com/web/javascript/" target="_blank">JavaScript</a>">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body>
<form id="idbSample" method="post" runat="server" class="SubHeading">
<asp:Label ID="MyTitle" runat="server" Font-Bold="True"></asp:Label>
<br>
<br>
<asp:DataGrid id="FormatDataGrid" runat="server" AutoGenerateColumns="False" Width="100%">
<HeaderStyle Font-Bold="True"></HeaderStyle>
<Columns>
<asp:TemplateColumn>
<ItemTemplate>
<asp:Label
Text='<%# FormatFullName(DataBinder.Eval(Container, "DataItem.FirstName"),_
DataBinder.Eval(Container, "DataItem.LastName")) %>'
runat="server" ID="Label1">
</asp:Label>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="Email" ReadOnly="True"></asp:BoundColumn>
<asp:BoundColumn DataField="Manager" ReadOnly="True">
<HeaderStyle HorizontalAlign="Center"></HeaderStyle>
<ItemStyle HorizontalAlign="Center"></ItemStyle>
</asp:BoundColumn>
</Columns>
</asp:DataGrid>
</form>
</body>
</HTML>
FormatDataGridVB.aspx.vb
Imports System
Imports System.Data
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Xml
Public Class FormatDataGridVB
Inherits System.Web.UI.Page
Protected WithEvents FormatDataGrid As System.Web.UI.WebControls.DataGrid
Protected WithEvents MyTitle As System.Web.UI.WebControls.Label
#Region " Web 窗体设计器生成的代码 "
'该调用是 Web 窗体设计器所必需的。
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
End Sub
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
'CODEGEN: 此方法调用是 Web 窗体设计器所必需的
'不要使用代码编辑器修改它。
InitializeComponent()
End Sub
#End Region
Private _dsContacts As DataSet
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
MyTitle.Text = "格式化DataGrid的例子【将数据原中的0,1值转换成实际的文字】"
FormatDataGrid.Columns(0).HeaderText = "姓名"
FormatDataGrid.Columns(1).HeaderText = "电子邮件"
FormatDataGrid.Columns(2).HeaderText = "职位"
' 装载XML数据原，注意：这里与数据原类型没有关系，换成数据库也是适用的
_dsContacts = New DataSet()
_dsContacts.ReadXml(Server.MapPath("Contacts.xml"))
Dim dcPk As DataColumn() = {_dsContacts.Tables("Contact").Columns("Email")}
_dsContacts.Tables("Contact").PrimaryKey = dcPk
If Not Page.IsPostBack Then
' 只在页面首次请求时才进行数据绑定
BindContacts()
End If
End Sub
Private Sub BindContacts()
Dim dv As DataView = New DataView(_dsContacts.Tables("Contact"))
dv.Sort = "LastName, FirstName"
FormatDataGrid.DataSource = dv
FormatDataGrid.DataBind()
End Sub
Protected Function FormatFullName(ByVal FirstName As Object, ByVal LastName As Object) As String
' 格式划名称列
Return CType(LastName, String) & "." & CType(FirstName, String)
End Function
Private Sub FormatDataGrid_ItemDataBound(ByVal sender As Object,_
ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles FormatDataGrid.ItemDataBound
' 确保处理的是数据行，而不是Header或者Footer
If e.Item.ItemType = ListItemType.Item OrElse e.Item.ItemType = ListItemType.AlternatingItem Then
' 得到Manager字段的值
Dim isManager As String = CType(DataBinder.Eval(e.Item.DataItem, "Manager"), String)
If isManager = "1" Then
' 设定文字和背景颜色
e.Item.Cells(2).Text = "经理"
e.Item.Cells(2).Style.Add("font-weight", "bold")
e.Item.Cells(2).ForeColor = System.Drawing.Color.Red
e.Item.BackColor = System.Drawing.Color.AliceBlue
Else
e.Item.Cells(2).Text = "普通员工"
End If
End If
End Sub
End Class
C#版本
