Form 界面假死

[yakune]

程序点击按钮执行循环的时候界面是假死状态,
循环方法:

private void sour()
        {
            HtmlElementCollection collectionoo = extendWebBrowser1.Document.GetElementsByTagName("A");

            foreach (HtmlElement elem in collectionoo)
            {
                if (elem.OuterHtml.Contains("title"))
                {
                    if (!elem.OuterHtml.Contains("d_link d_a"))
                    {
                        listBox1.Items.Add(elem.InnerText);
                        string ostr = elem.OuterHtml;
                        string ostr1 = ostr.Substring(ostr.LastIndexOf("http"));
                        string ostr2 = ostr1.Substring(0, ostr1.LastIndexOf("\" target"));
                        HttpWebRequest myWebRequest = (HttpWebRequest)WebRequest.Create(ostr2);
                        WebResponse resp = myWebRequest.GetResponse();
                        StreamReader oStreamRd = new StreamReader(resp.GetResponseStream(), Encoding.GetEncoding("GB2312"));
                        string oStr3 = oStreamRd.ReadToEnd();
                        string oStr4 = oStr3.Substring(oStr3.LastIndexOf("surl+\"") + 6);
                        string oStr5 = oStr4.Substring(0, oStr4.LastIndexOf("?\" + Au"));
                        listBox1.Items.Add(oStr5 );
                    }
                }
            }
            linkLabel3_LinkClicked(null, null); //下一页
        }

调用方法:

//这样调用,只有循环结束界面才显示数据.
private void button4_Click(object sender, EventArgs e)
        {
            sour();
        }
//用线程调用,异常: 指定的转换无效。在[HtmlElementCollection collectionoo = extendWebBrowser1.Document.GetElementsByTagName("A");]
private void button3_Click(object sender, EventArgs e)
        {
            th = new Thread(new ThreadStart(this.sour));
            th.Start();
        }

[freeboy827]

线程的方法不要调用 控件

[yakune]

这样调用异常:指定的转换无效。 在[HtmlElementCollection collectionoo = extendWebBrowser1.Document.GetElementsByTagName("A");]

 private void button4_Click(object sender, EventArgs e)
        {
            AsyncEventHandler asy = new AsyncEventHandler(this.sour);
            IAsyncResult ia = asy.BeginInvoke(null, null); 
            //sour();
        }

[ywj157]

private void sour()
{
HtmlElementCollection collectionoo = extendWebBrowser1.Document.GetElementsByTagName("A");

foreach (HtmlElement elem in collectionoo)
{
if (elem.OuterHtml.Contains("title"))
{
if (!elem.OuterHtml.Contains("d_link d_a"))
{
listBox1.Items.Add(elem.InnerText);
string ostr = elem.OuterHtml;
string ostr1 = ostr.Substring(ostr.LastIndexOf("http"));
string ostr2 = ostr1.Substring(0, ostr1.LastIndexOf("\" target"));
HttpWebRequest myWebRequest = (HttpWebRequest)WebRequest.Create(ostr2);
WebResponse resp = myWebRequest.GetResponse();
StreamReader oStreamRd = new StreamReader(resp.GetResponseStream(), Encoding.GetEncoding("GB2312"));
string oStr3 = oStreamRd.ReadToEnd();
string oStr4 = oStr3.Substring(oStr3.LastIndexOf("surl+\"") + 6);
string oStr5 = oStr4.Substring(0, oStr4.LastIndexOf("?\" + Au"));
listBox1.Items.Add(oStr5 );
}
}
}
[color=#800000]linkLabel3_LinkClicked(null, null); //下一页[/color]
}
private void button3_Click(object sender, EventArgs e)
{
th = new Thread(new ThreadStart(this.sour));
th.Start();
}
红色字体的改成listBox1.BeginInvoke.....................

[哥子谭]

这个可能是你的数据多了或者是程序出现死循环了

[yakune]

[Quote=引用 6 楼 ywj157 的回复:]

private void button3_Click(object sender, EventArgs e)
{
th = new Thread(new ThreadStart(this.sour));
th.Start();
}
红色字体的改成listBox1.BeginInvoke.....................
[/Quote]
第一行就报错了,改下面的有用吗??

[兔子-顾问]

try

linkLabel3_LinkClicked(null, null); //下一页

改为

Application.DoEvents();
linkLabel3_LinkClicked(null, null); //下一页

[龍月]

看下 backgroundworker 控件 此消息通过 【CSDN论坛 Winform测试版】 回复！ 龙月.NET的博客

[xrongzhen]

[Quote=引用 8 楼 lovlc 的回复:]
引用 6 楼 ywj157 的回复:

private void button3_Click(object sender, EventArgs e)
{
th = new Thread(new ThreadStart(this.sour));
th.Start();
}
红色字体的改成listBox1.BeginInvoke.....................

第一行就报……
[/Quote]

第一行报什么错？ 你不说谁知道啊 语法没啥错

[soolx]

顶起来吧.

[alangmcj]

[Quote=引用 8 楼 lovlc 的回复:]

引用 6 楼 ywj157 的回复:

private void button3_Click(object sender, EventArgs e)
{
th = new Thread(new ThreadStart(this.sour));
th.Start();
}
红色字体的改成listBox1.BeginInvoke.....................

第一行就……
[/Quote]
报什么错误？