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asp.net Page.Controls对象(找到所有服务器控件)

  • 时间:2021-03-12 12:48 编辑: 来源: 阅读:
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摘要:asp.net Page.Controls对象(找到所有服务器控件)
[b]实例一:[/b] 前台
[u]复制代码[/u] 代码如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>无标题页</title> </head> <body> <form id="form1" runat="server"> <div id="div1"> <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" /> </div> </form> </body> </html>
后台
[u]复制代码[/u] 代码如下:
public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { string name = "tree"; //Server.Transfer("ajax.aspx?id=1&name="+name); ChangeControls(); } /************Controls属性************ * this.Controls则包括所有控件。 * System.Web.UI.LiteralControl System.Web.UI.HtmlControls.HtmlHead System.Web.UI.LiteralControl System.Web.UI.HtmlControls.HtmlForm System.Web.UI.LiteralControl * 为<div id="div1">加上runat属性,则Form.Controls里则找不到Button1 */ private void ChangeControls() { foreach (System.Web.UI.Control control in this.Form.Controls) { if (control is Button) { Button btn = (Button)control; btn.Text = "Hello"; } } foreach (Control control in this.Controls) { Response.Write(control.ToString() + "<br/>"); } } }
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