在ASP.NET中访问DataGrid中所有控件的值 (1)
减小字体
增大字体 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" 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))
<%@ 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" 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))