在ASP.NET中访问DataGrid中所有控件的值

类别:.NET开发 点击:0 评论:0 推荐:
在ASP.NET中访问DataGrid中所有控件的值
作者:孟宪会 出自:【孟宪会之精彩世界】 发布日期:2003年5月5日 2点50分20秒

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="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"> <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 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 Property End Class C#例子代码: <%@ Page Language="C#" %> <%@ import Namespace="System.Collections" %> <script runat="server"> void Page_Load(Object sender, EventArgs e) { if(!Page.IsPostBack){ ArrayList data = new ArrayList(); data.Add(new Person("Tom",33,true)); data.Add(new Person("Jhon",39,false)); data.Add(new Person("Mark",20,false)); data.Add(new Person("Linda",27,true)); MyDataGrid.DataSource = data; MyDataGrid.DataBind(); } } void GetValues_Click(Object sender, EventArgs e) { String Result = ""; foreach(DataGridItem dataGridItem in MyDataGrid.Items){ //Get name from cell[0] String Name = dataGridItem.Cells[0].Text; //Get text from textbox in cell[1] String Age = ((TextBox)dataGridItem.FindControl("AgeField")).Text; //Get Checked property of Checkbox control bool IsGraduate = ((CheckBox)dataGridItem.FindControl("IsGraduateField")).Checked; // get Values from Checkboxlist String Skills = ""; foreach(ListItem item in ((CheckBoxList)dataGridItem.FindControl("CheckBoxList1")).Items){ if (item.Selected){ Skills += item.Value + ","; } } Skills = Skills.TrimEnd(','); //Get RadioButtonList Selected text String Experience = ((RadioButtonList)dataGridItem.FindControl("RadioButtonList1")).SelectedItem.Text; //Get DropDownList Selected text String Degree = ((DropDownList)dataGridItem.FindControl("DropDownList1")).SelectedItem.Text; // Build String to show result. Result += Name; Result += " [Age -" + Age + "] "; if (IsGraduate){ Result += "Is Graduate , "; }else{ Result += "Is not Graduate , "; } Result += "Has Skills[" + Skills + "] , "; Result += "Has " + Experience + " Experience , And " ; Result += "Has " + Degree + " Degree." ; Result += "<br>"; } ResultField.Text = Result; } class Person{ String _Name; int _Age; bool _IsGraduate; public Person(String name,int age, bool isGraduate){ _Name = name; _Age = age; _IsGraduate = isGraduate; } public String Name{ get{return _Name;} } public int Age{ get{return _Age;} } public bool IsGraduate{ get{return _IsGraduate;} } } </script> <html> <head> </head> <body> <form runat="server"> <asp:DataGrid id="MyDataGrid" runat="server" 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='<%# (bool)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" Selected="true">Less then 1 Year</asp:ListItem> <asp:ListItem Value="3">Less then 3 Year</asp:ListItem> <asp:ListItem Value="5">Less then 5 Year</asp:ListItem> <asp:ListItem Value="10">Less then 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>

本文地址:http://com.8s8s.com/it/it43176.htm