如何删除动态添加的一列控件？这不是０分贴，有５０分！把那个自己解决的帖子分数给这个帖子！

Question

那个帖子的地址：
http://community.csdn.net/Expert/topic/5479/5479321.xml?temp=.8438074是这样的，我动态添加了一个删除按钮　　　　　　　　Button delete = new Button();
                delete.ID = "delete" + i.ToString();
                delete.Text = "删除";
                delete.Click += new EventHandler(this.deleteresv);以及几个控件　　　　　　　　TextBox lea_dt = new TextBox();
                lea_dt.ID = "lea_dt" + i.ToString();
                lea_dt.Text = DateTime.Today.ToShortDateString();
                lea_dt.Width = 90;                Label rm_num = new Label();
                rm_num.ID = "rm_num" + i.ToString();
                rm_num.Text = "1";
                rm_num.Width = 20;他们都是以行的，有标示可以区分现在我想点击按钮以后，所有的这行的控件都被删除我用的就是delete.Click += new EventHandler(this.deleteresv);但是我断点以后，发现根本不会执行deleteresv这个函数，请问是怎么回事？哪里的问题顺便说一下：    protected void Page_Load(object sender, EventArgs e)
    {    }
我的Page_Load啥也没有写，是不是这里的问题，如果要写，应该写什么呢？谢谢大家

Answer 1

private void button4_Click(object sender, System.EventArgs e)
        {
            this.Controls.Remove(button4);
        }

Answer 2

-_-
what are you thinking about?

Answer 3

delete.Click += new EventHandler(this.deleteresv);你放在哪里？把它放在page_load里面试试
很有可能楼主对asp.net的生命周期理解有误

Answer 4

delete.Click += new EventHandler(this.deleteresv)在什么地方？
还有你deleteresv（）方法怎么写的？

Answer 5

解决了，其实就是很简单的
谢谢大家，给分吧~~呵呵using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;public partial class control_WebUserControl : System.Web.UI.UserControl
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            //跟踪用户控件状态值    
            ViewState["DataFieldCount"] = 0;
        }
        else
        {
            int a =(int)ViewState["DataFieldCount"];
            for (int counter = 0; counter < a; counter++)
            {
                AddDataField(counter.ToString());
            }
        }
    }
    protected void Button1_Click1(object sender, EventArgs e)
    {
        AddDataField(ViewState["DataFieldCount"].ToString());
        ViewState["DataFieldCount"] = (int)ViewState["DataFieldCount"] + 1;
        
    }    private void AddDataField(string strFieldNum)
    {
        int i = 0;
        i = Convert.ToInt32(strFieldNum);        int j = 100;
        if (i < j)
        {            Button delete = new Button();
            delete.ID = "delete" + i.ToString();
            delete.Text = "删除";            TextBox arr_dt = new TextBox();
            arr_dt.ID = "arr_dt" + i.ToString();
            arr_dt.Text = DateTime.Today.ToShortDateString();
            arr_dt.Width = 90;
            TextBox lea_dt = new TextBox();
            lea_dt.ID = "lea_dt" + i.ToString();
            lea_dt.Text = DateTime.Today.AddDays(+1).ToShortDateString();
            lea_dt.Width = 90;            TextBox rm_num = new TextBox();
            rm_num.ID = "rm_num" + i.ToString();
            rm_num.Text = "1";
            rm_num.Width = 20;            TextBox pre_num = new TextBox();
            pre_num.ID = "pre_num" + i.ToString();
            pre_num.Text = "1";//是否取床位数？
            pre_num.Width = 20;            DropDownList rm_typ = new DropDownList();
            rm_typ.ID = "rm_typ" + i.ToString();            Panel1.Controls.Add(arr_dt);
            Panel1.Controls.Add(lea_dt);
            Panel1.Controls.Add(rm_typ);
            Panel1.Controls.Add(rm_num);
            Panel1.Controls.Add(pre_num);
            Panel1.Controls.Add(delete);
            delete.Attributes.Add("onclick", "return confirm('确定要删除该字段吗?');");
            delete.Click += new EventHandler(btnDelRow_Click);
        }
    }
    private void btnDelRow_Click(object sender, System.EventArgs e)
    {
        ViewState["DataFieldCount"] = (int)ViewState["DataFieldCount"] - 1;
        Button delete = (Button)sender;
        string id = delete.ClientID;
        string idcut = id.Substring(22);
        TextBox arr_dt = new TextBox();
        TextBox lea_dt = new TextBox();
        TextBox pre_num = new TextBox();
        TextBox rm_num = new TextBox();
        DropDownList rm_typ = new DropDownList();        Panel1.Controls.Remove(Panel1.FindControl("arr_dt" + idcut));
        Panel1.Controls.Remove(Panel1.FindControl("lea_dt" + idcut));
        Panel1.Controls.Remove(Panel1.FindControl("pre_num" + idcut));
        Panel1.Controls.Remove(Panel1.FindControl("rm_num" + idcut));
        Panel1.Controls.Remove(Panel1.FindControl("rm_typ" + idcut));
        Panel1.Controls.Remove(Panel1.FindControl("delete" + idcut));    }
        
}