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在ASP.NET中访问DataGrid中所有控件的值

王朝asp·作者佚名  2006-11-24
窄屏简体版  字體: |||超大  

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:下面就是实现这一功能的aspx代码和脚本代码【VB.NET】:

<%@ Page Language="<a href="http://dev.21tx.com/language/vb/" target="_blank">VB</a>" AutoEventWireup="false" Codebehind="DataGrid<a href="http://dev.21tx.com/database/access/" target="_blank">Access</a>Values.aspx.vb"

Inherits="aspx<a href="http://dev.21tx.com/web/" target="_blank">Web</a>.DataGridAccessValues"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML>

<HEAD>

</HEAD>

<body>

<form runat="server" ID="Form1">

<asp:DataGrid id="MyDataGrid" runat="server" Width ="100%" AutoGenerateColumns="False">

<ItemStyle verticalalign="Top"></ItemStyle>

<Columns>

<asp:BoundColumn DataField="Name" HeaderText="Name"></asp:BoundColumn>

<asp:TemplateColumn HeaderText="Age">

<ItemTemplate>

<asp:TextBox id="AgeField" Columns="5" Text='<%# DataBinder.Eval(Container.DataItem,"Age") %>'

runat="server"></asp:TextBox>

</ItemTemplate>

</asp:TemplateColumn>

<asp:TemplateColumn HeaderText="Graduate">

<ItemTemplate>

<asp:CheckBox id="IsGraduateField" Checked='<%# DataBinder.Eval(Container.DataItem,"IsGraduate") %>'

runat="server"></asp:CheckBox>

</ItemTemplate>

</asp:TemplateColumn>

<asp:TemplateColumn HeaderText="Skills">

<ItemTemplate>

<asp:CheckBoxList id="CheckBoxList1" runat="server">

<asp:ListItem Value="C#" Selected="true">C#</asp:ListItem>

<asp:ListItem Value="C++">C++</asp:ListItem>

<asp:ListItem Value="VB">VB</asp:ListItem>

<asp:ListItem Value="SQL Server" Selected="true">SQL Server</asp:ListItem>

</asp:CheckBoxList>

</ItemTemplate>

</asp:TemplateColumn>

<asp:TemplateColumn HeaderText="Experience">

<ItemTemplate>

<asp:RadioButtonList id="RadioButtonList1" runat="server">

<asp:ListItem Value="1">1 Year</asp:ListItem>

<asp:ListItem Value="3">3 Year</asp:ListItem>

<asp:ListItem Value="5" Selected="true">5 Year</asp:ListItem>

<asp:ListItem Value="10">10 Year</asp:ListItem>

</asp:RadioButtonList>

</ItemTemplate>

</asp:TemplateColumn>

<asp:TemplateColumn HeaderText="Degree">

<ItemTemplate>

<asp:DropDownList id="DropDownList1" runat="server">

<asp:ListItem Value="HighSchool">HighSchool</asp:ListItem>

<asp:ListItem Value="Graduate" Selected="true">Graduate</asp:ListItem>

<asp:ListItem Value="Masters">Masters</asp:ListItem>

<asp:ListItem Value="PHD">PHD</asp:ListItem>

</asp:DropDownList>

</ItemTemplate>

</asp:TemplateColumn>

</Columns>

</asp:DataGrid>

<br>

<asp:Button id="GetValues" onclick="GetValues_Click" runat="server" Text="GetValues"></asp:Button>

<br>

<asp:Label id="ResultField" runat="server"></asp:Label>

</form>

</body>

</HTML>

后端代码:

Imports System.Collections

Public 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 += "<br>"

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 Sub

End Class

Public Class Person

Private _Name As String

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