高分请教webcontrol的事件处理问题>

[jjiaming]

我在webcontrol里加了一个按钮,然后希望这个按钮的click事件在webcontrol里来处理,本来是件很容易的事,但是click事件根本就没有响应,但是页面还是会刷新的.以下是代码,请大家多多指教

browerButton.Click += new EventHandler(browerButton_Click);

void browerButton_Click(object sender, EventArgs e)
{
.........
}

[jjyjjyjjy]

请问你的webcontrol是动态添加的吗？如果是要在服务器端重新添加一次，服务器会在postback时重建现场。

[jiangchunming]

ASP.NET的按钮生命周期是PostBack后先重新构建页面，页面构建完后才执行按钮事件，
还有如果你是动态添加的控件的话，一定要对你需要操作的控件的ID赋值

[jjiaming]

是啊.是动态添加的

[jjiaming]

我已经给ID赋值 了,可是还是不行啊

[jiangchunming]

代码贴出来

[jjiaming]

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace Unidefine.Model
{
/// <summary>
/// 商品图片列表
/// </summary>
[DefaultProperty("Text")]
[ToolboxData("<{0}:ImageList runat=server></{0}:ImageList>")]
public class ImageList : WebControl
{
private Product productInfo;
delegate void DeleteImage(string imageName);
private List<string> changedImageList = new List<string>();

public List<string> ChangedImageList
{
get { return changedImageList; }
}

public Product ProductInfo
{
get { return productInfo; }
set { productInfo = value; }
}


protected override void CreateChildControls()
{

int imageNum = productInfo.images.Length;

for (int i = 0; i < imageNum; i++)
{
string imagePath = productInfo.images[i];
Image image = new Image();
image.ImageUrl = "images\\" + imagePath;
image.ID = "image" + i.ToString();
CheckBox checkBox = new CheckBox();
checkBox.Text = "更改图片 ";
checkBox.ID = "checkBox" + i.ToString();
TextBox imageTextBox = new TextBox();
imageTextBox.Text = imagePath;
imageTextBox.ID = "imageTextBox" + i.ToString();
Button browerButton = new Button();
browerButton.ID = "browerButton" + i.ToString();
browerButton.Text = "浏览....";
Button deleteButton = new Button();
deleteButton.ID = "deleteButton" + i.ToString();
deleteButton.Text = "删除";
checkBox.CheckedChanged += new EventHandler( checkBox_CheckedChanged);
checkBox.AutoPostBack = true;
browerButton.Click += new EventHandler(browerButton_Click);
Controls.Add(image);
Controls.Add(checkBox);
Controls.Add(imageTextBox);
Controls.Add(browerButton);
Controls.Add(deleteButton);
}

base.CreateChildControls();
}

void browerButton_Click(object sender, EventArgs e)
{
Page.Response.Write("<script language=javascript> window.alert('按钮');</script>");
}

void checkBox_CheckedChanged(object sender, EventArgs e)
{
Page. Response.Write("<script language=javascript> window.alert('按钮');</script>");
}

/// <summary>
/// Render the contents
/// </summary>
/// <param name="output">output</param>
protected override void RenderContents(HtmlTextWriter output)
{


base.RenderContents(output);
}

/// <summary>
///
/// </summary>
/// <param name="e"></param>
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
}
/// <summary>
///
/// </summary>
/// <param name="writer"></param>
protected override void Render(HtmlTextWriter writer)
{
base.Render(writer);
}
}
}

[jjiaming]

多谢

[jiangchunming]

暂时没空，空了帮你看