aspx頁面中的代碼：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="遍歷頁面所有某一類型的控件.WebForm1" %>
<!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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server">1</asp:TextBox>
<br />
<p></p>
<asp:TextBox ID="TextBox2" runat="server">2</asp:TextBox>
<br />
<p></p>
<asp:TextBox ID="TextBox3" runat="server">3</asp:TextBox>
<br />
<p></p>
<asp:TextBox ID="TextBox4" runat="server">4</asp:TextBox>
<br />
<p></p>
</div>
</form>
</body>
</html>
方法1：
for (int i = 0; i < Page.Controls.Count; i++)
{
foreach (System.Web.UI.Control stl in Page.Controls[i].Controls)
{
Response.Write(stl.ToString() + "<br/>");
if (stl is TextBox)
{
TextBox tb = (TextBox)stl;
tb.ReadOnly = true;
}
}
}
方法2：
foreach(System.Web.UI.Control stl in this.Form.Controls)
{
Response.Write(stl.ToString()+"<br/>");
if(stl is System.Web.UI.WebControls.TextBox)
{
TextBox tb = (TextBox)stl;
tb.ReadOnly = true;
}
}
先獲取頁面上所有的控件（包括客戶端和服務器端控件）--- this.Form.Controls
先過濾得到服務器 --- is System.Web.UI.WebControls.TextBox
強制轉換為TextBox控件 ---TextBox tb = (TextBox)stl;
設置屬性 ---tb.ReadOnly = true;