在ASP.NET中访问DataGrid中所有控件的值

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要在ASP.NET中访问DataGrid中所有控件的值，可以遍历DataGrid中每个控件

实例1（来至孟子E章）：

<%@ Page Language="vb" AutoEventWireup="false" Codebehind="DataGridAccessValues.aspx.vb" Inherits="aspxWeb.DataGridAccessValues"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD></HEAD><body><form runat="server" ID="Form1"><ItemStyle verticalalign="Top"></ItemStyle><Columns></asp:BoundColumn> <ItemTemplate> ' runat="server"></asp:TextBox> </ItemTemplate></asp:TemplateColumn> <ItemTemplate> ' runat="server"></asp:CheckBox> </ItemTemplate></asp:TemplateColumn> <ItemTemplate> C#</asp:ListItem> C++</asp:ListItem> VB</asp:ListItem> SQL Server</asp:ListItem> </asp:CheckBoxList> </ItemTemplate></asp:TemplateColumn> <ItemTemplate> 1 Year</asp:ListItem> 3 Year</asp:ListItem> 5 Year</asp:ListItem> 10 Year</asp:ListItem> </asp:RadioButtonList> </ItemTemplate></asp:TemplateColumn> <ItemTemplate> HighSchool</asp:ListItem> Graduate</asp:ListItem> Masters</asp:ListItem> PHD</asp:ListItem> </asp:DropDownList> </ItemTemplate></asp:TemplateColumn></Columns></asp:DataGrid> </asp:Button> </asp:Label></form></body></HTML>后端代码： Imports System.CollectionsPublic Class DataGridAccessValues Inherits System.Web.UI.Page Protected WithEvents MyDataGrid As System.Web.UI.WebControls.DataGrid Protected WithEvents GetValues As System.Web.UI.WebControls.Button Protected WithEvents ResultField 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 Public Sub GetValues_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles GetValues.Click Dim Result As String = "" Dim dataGridItem As DataGridItem For Each dataGridItem In MyDataGrid.Items Dim Name As String = dataGridItem.Cells(0).Text Dim AgeField As TextBox = dataGridItem.FindControl("AgeField") Dim Age As Integer = System.Convert.ToInt64(AgeField.Text).ToString() Dim IsGraduateField As CheckBox = dataGridItem.FindControl("IsGraduateField") Dim IsGraduate As Boolean = IsGraduateField.Checked Dim Skills As String = "" Dim item As ListItem Dim CheckBoxList1 As CheckBoxList = dataGridItem.FindControl("CheckBoxList1") For Each item In CheckBoxList1.Items If item.Selected Then Skills = Skills + item.Value + "," End If Next Skills = Skills.TrimEnd(",") Dim RadioButtonList1 As RadioButtonList = dataGridItem.FindControl("RadioButtonList1") Dim Experience As String = RadioButtonList1.SelectedItem.Text Dim DropDownList1 As DropDownList = dataGridItem.FindControl("DropDownList1") Dim Degree As String = DropDownList1.SelectedItem.Text Result = Result + Name Result = Result + "[年龄：" + Age.ToString() + "]" Result += " " If IsGraduate Then Result += "已经毕业 , " Else Result += "没有毕业 , " End If Result += "技能：" + Skills + " , " Result += "经验： " + Experience + " , 和 " Result += "学位： " + Degree + "。" Result += " " Next ResultField.Text = Result End Sub Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load '在此处放置初始化页的用户代码 If Not Page.IsPostBack Then Dim data As ArrayList = New ArrayList() data.Add(New Person("Net_lover", 33, True)) data.Add(New Person("孟子E章", 28, True)) data.Add(New Person("精彩世界", 20, False)) data.Add(New Person("XML开发", 27, True)) MyDataGrid.DataSource = data MyDataGrid.DataBind() End If End SubEnd ClassPublic Class Person Private _Name As String Private _Age As Integer Private _IsGraduate As Boolean Public Sub New(ByVal Name As String, ByVal Age As Integer, ByVal IsGraduate As Boolean) _Name = Name _Age = Age _IsGraduate = IsGraduate End Sub Public Property Name() As String Get Return _Name End Get Set(ByVal Value As String) _Name = Value End Set End Property Public Property Age() As Integer Get Return _Age End Get Set(ByVal Value As Integer) _Age = Value End Set End Property Public Property IsGraduate() As Boolean Get Return _IsGraduate End Get Set(ByVal Value As Boolean) _IsGraduate = Value End Set End PropertyEnd ClassC#例子代码： <%@ Page Language="C#" %><%@ import Namespace="System.Collections" %><html><head></head><body><form runat="server"><ItemStyle verticalalign="Top"></ItemStyle><Columns></asp:BoundColumn><ItemTemplate>' runat="server"></asp:TextBox></ItemTemplate></asp:TemplateColumn><ItemTemplate>' runat="server"></asp:CheckBox></ItemTemplate></asp:TemplateColumn><ItemTemplate>C#</asp:ListItem>C++</asp:ListItem>VB</asp:ListItem>SQL Server</asp:ListItem></asp:CheckBoxList></ItemTemplate></asp:TemplateColumn><ItemTemplate>Less then 1 Year</asp:ListItem>Less then 3 Year</asp:ListItem>Less then 5 Year</asp:ListItem>Less then 10 Year</asp:ListItem></asp:RadioButtonList></ItemTemplate></asp:TemplateColumn><ItemTemplate>HighSchool</asp:ListItem>Graduate</asp:ListItem>Masters</asp:ListItem>PHD</asp:ListItem></asp:DropDownList></ItemTemplate></asp:TemplateColumn></Columns></asp:DataGrid> </asp:Button> </asp:Label></form></body></HTML>实例2（来至ASP.NET快速入门）：<html> <script language="C#" runat="server"> DataView CartView; Double runningTotal = 0; //Cart 是 Page 上的一个属性 DataTable Cart { get { if (Session["DGC_ShoppingCart"] == null) { DataTable tmpCart = new DataTable(); tmpCart.Columns.Add(new DataColumn("数量", typeof(string))); tmpCart.Columns.Add(new DataColumn("产品", typeof(string))); tmpCart.Columns.Add(new DataColumn("价格", typeof(Double))); tmpCart.Columns.Add(new DataColumn("礼品包", typeof(bool))); Session["DGC_ShoppingCart"] = tmpCart; // 第一次加载 -- 预填充一些数据 for (int i=1; i<=6; i++) { DataRow dr = tmpCart.NewRow(); dr[0] = "1"; dr[1] = "产品" + i.ToString(); dr[2] = 1.23 * (i+1); dr[3] = false; tmpCart.Rows.Add(dr); } return tmpCart; } else return (DataTable)Session["DGC_ShoppingCart"]; } } void Page_Init(Object sender, EventArgs e) { MyDataGrid.EnableViewState=true; } void Page_Load(Object sender, EventArgs e) { CartView = Cart.DefaultView; if (!IsPostBack) BindGrid(); } void BindGrid() { MyDataGrid.DataSource = CartView; MyDataGrid.DataBind(); } void btnUpdate_click(Object sender, EventArgs e) { for (int i=0; i<MYDATAGRID.ITEMS.COUNT; color="green" // 对于数据库，我们应使用一条更新命令。 // 因为这是一个内存内数据表，所以我们只更改内存内的行。 DataRow dr = Cart.Rows[i]; dr[0] = qtyTextBox.Text; dr[3] = giftCheckBox.Checked; } BindGrid(); } Double CalcTotal (int count, Double price) { Double total = count * price; runningTotal += total; return(total); } </script><body> <h3><font face="宋体">DataGrid 的自定义编辑</font></h3> <form runat=server> <?xml:namespace prefix = asp /><ASP:DataGrid id=MyDataGrid AutoGenerateColumns="false" HeaderStyle-BackColor="#aaaadd" Font-Size="8pt" Font-Name="宋体" CellPadding="4" GridLines="none" BorderWidth="1" BorderColor="black" runat="server"> <Columns> <asp:TemplateColumn HeaderText="数量"> <ItemTemplate> '> Width="40px" /> </ItemTemplate> </asp:TemplateColumn> <asp:BoundColumn HeaderText="产品" DataField="产品"/> <asp:BoundColumn HeaderText="价格" DataField="价格" DataFormatString="{0:c}" /> <asp:TemplateColumn HeaderText="礼品包？"> <ItemTemplate> <center> '> /> </center> </ItemTemplate> </asp:TemplateColumn> <asp:TemplateColumn HeaderText="小计"> <ItemTemplate> <p align="right"> '> /> </p> </ItemTemplate> <FooterTemplate> <p align="right"><b> '> /> </b></p> </FooterTemplate> </asp:TemplateColumn> </Columns> </asp:DataGrid> </asp:LinkButton> </form></body></html>