在threadstart中传递方法名但没有得到任何结果...... [英] passing method name in threadstart but not getting any result...

问题描述

SearchLink = new Thread(new ThreadStart(() =>getData("http://" + TextBox1.Text.Trim())));
            SearchLink.Start();
            foreach (string value in myatt)
            {
                Label1.Text += value;
            }

方法名下的代码getData是：

Code Under Method Name getData is :

private void getData(string Url)
    {
        HyperLink1.Text = string.Empty;
        HtmlWeb web = new HtmlWeb();
        HtmlDocument myNode = web.Load(Url);

        
        
        foreach (HtmlNode link in myNode.DocumentNode.SelectNodes("//a[@href]"))
        {
            HtmlAttribute att = link.Attributes["href"];
            myatt.Add(att.Value);
        }
        
    }

i尝试调试但没有得到我的代码中发生的事情....

我收到错误

i tried with debug but not getting that what is happening in my code ....
and i am getting error

Collection was modified; enumeration operation may not execute.

帮我找出错误的地方..

help me to find out where i am wrong..

many thanks..

推荐答案

试试这个：

Hi,

Try this:

SearchLink = new Thread(new ThreadStart(() =>getData("http://" + TextBox1.Text.Trim())));
            SearchLink.Start();
            SearchLink.Join();
            foreach (string value in myatt)
            {
                Label1.Text += value;
            }

private void getData(string Url) // you don't need to make any change on your getData method
    {
        HyperLink1.Text = string.Empty;
        HtmlWeb web = new HtmlWeb();
        HtmlDocument myNode = web.Load(Url);
 
        
        
        foreach (HtmlNode link in myNode.DocumentNode.SelectNodes("//a[@href]"))
        {
            HtmlAttribute att = link.Attributes["href"];
            myatt.Add(att.Value);
        }
        
    }

希望这会有所帮助。

Hope this helps.

这篇关于在threadstart中传递方法名但没有得到任何结果......的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！