方法一
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %> <!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>無標題頁</title> <script runat="server"> protected void Button1_Click(object sender, EventArgs e) { FindBox(this.Controls); } private void FindBox(ControlCollection cc) { string CheckString = ""; foreach (Control c in cc) { if (c.HasControls()) { FindBox(c.Controls); } if (c is CheckBox) { CheckBox cb = c as CheckBox; if (cb.Checked) { CheckString += cb.Text.Replace("CheckBox", "").Trim() + ","; } } } Response.Write(""+CheckString+""); } </script> </head> <body> <form id="form1" runat="server"> <div> <asp:CheckBox ID="CheckBox7" runat="server" name="xxxxx" Text=" xxxxx" /> <asp:CheckBox ID="CheckBox1" runat="server" name="Admin_Power" Text=" 投票1" /> <asp:CheckBox ID="CheckBox2" runat="server" name="Admin_Power" Text=" 投票2" /> <asp:CheckBox ID="CheckBox3" runat="server" name="Admin_Power" Text=" 投票3" /> <asp:CheckBox ID="CheckBox4" runat="server" name="Admin_Power" Text=" 投票4" /> <asp:CheckBox ID="CheckBox5" runat="server" name="Admin_Power" Text=" 投票5" /> <asp:CheckBox ID="CheckBox6" runat="server" name="Admin_Power" Text=" 投票6" /> <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="得到" /> </div> </form> </body> </html>
方法二
protected void Button1_Click(object sender, EventArgs e) { string CheckString = ""; foreach (Control ct in form1.Controls) { if (ct.GetType().ToString().Equals("System.Web.UI.WebControls.CheckBox")) { CheckBox cb = (CheckBox)ct; if (cb.Checked) { CheckString += cb.Text.Replace("CheckBox", "").Trim() + ","; } } } this.Label3.Text = CheckString; }
你的checkbox在form里，你只能在form中循環遍歷。
所以你必須先得到form這個對象。
如果是母版頁，你可以先這樣來得到form
HtmlForm f = this.FindControl("form的id") as HtmlForm;
或者也許是this.Master.FindControl("form的id") as HtmlForm;
遍歷頁面上的CheckBoxList：
string CheckString = ""; foreach (Control c in this.form1.Controls) //母版頁:foreach (Control c in this.Page.Master.FindControl("ContentPlaceHolder1").Controls ) { if (c is CheckBoxList) { foreach (ListItem item in (c as CheckBoxList).Items) { if (item.Selected == true) { CheckString += item.Value + ","; } } } }