执行线程的问题

[lttleboy]

private void btnStart_Click(object sender, EventArgs e)
{
Thread threadTwo = new Thread(new ThreadStart(MsgTwo));
threadTwo.Start();

}
public void MsgTwo()
{
ListViewBind();
}

private void ListViewBind()
{
Thread.Sleep(1000);

listView2.Items.Clear();
listView2.Columns.Clear();
SqlConnection con = new SqlConnection("server=.;database=pubs;user id=sa;password=123");
con.Open();
DataSet dst = new DataSet();
SqlCommand cmd = new SqlCommand("select title_id,type from titles", con);
SqlDataAdapter dap = new SqlDataAdapter(cmd);
dap.Fill(dst);
/con.Close();

this.listView2.Columns.Add("调用接口", 80, HorizontalAlignment.Center);
this.listView2.Columns.Add("成功数", 80, HorizontalAlignment.Center);//增加列标题
this.listView2.Columns.Add("失败数",80,HorizontalAlignment.Center);

listView2.View = View.Details;
listView2.GridLines = true;//显示网格线。。
string[] str1 = new string[3];
foreach (DataRow row in dataset.Tables[0].Rows)
{
str1[0] = row["Interface"].ToString();
str1[1] = row["sucnum"].ToString();
str1[2] = row["failnum"].ToString();
ListViewItem item = new ListViewItem(str1, 0);
listView2.Items.Add(item);
}
}

为什么运行的时候会出现 线程间操作无效: 从不是创建控件“listView2”的线程访问它。这是怎么回事？在线程中绑定listview该怎么做？

[zzyhuian06142]

你的ListView是在主线程中创建的
所以你必须在你的新线程中重新创建个ListView设置他的Location和Size
private void btnStart_Click(object sender, EventArgs e)
{
Thread threadTwo = new Thread(new ThreadStart(MsgTwo));
threadTwo.Start();

}
public void MsgTwo()
{
ListViewBind();
}

private void ListViewBind()
{
Thread.Sleep(1000);
ListView listView2 = new ListView();
listView2.location=你想要的位置;
listview2.size =你想要的大小;
listView2.Items.Clear();
listView2.Columns.Clear();
SqlConnection con = new SqlConnection("server=.;database=pubs;user id=sa;password=123");
con.Open();
DataSet dst = new DataSet();
SqlCommand cmd = new SqlCommand("select title_id,type from titles", con);
SqlDataAdapter dap = new SqlDataAdapter(cmd);
dap.Fill(dst);
/con.Close();

this.listView2.Columns.Add("调用接口", 80, HorizontalAlignment.Center);
this.listView2.Columns.Add("成功数", 80, HorizontalAlignment.Center);//增加列标题
this.listView2.Columns.Add("失败数",80,HorizontalAlignment.Center);

listView2.View = View.Details;
listView2.GridLines = true;//显示网格线。。
string[] str1 = new string[3];
foreach (DataRow row in dataset.Tables[0].Rows)
{
str1[0] = row["Interface"].ToString();
str1[1] = row["sucnum"].ToString();
str1[2] = row["failnum"].ToString();
ListViewItem item = new ListViewItem(str1, 0);
listView2.Items.Add(item);
}
}

[skison]

ListViewBind（）方法是运行在非主线程中，在非主线程中，是不建议操作界面控件的。
也就是说 在ListViewBind中直接操作ListView不行。

需要改下

 private void ListViewBind() 
{
    Thread.Sleep(1000); 
    if ( this.InvokeRequired )
    {
          this.Invoke( new MethodInvoker( ListViewBind ) );
    }
    else
    { 
 listView2.Items.Clear(); 
            listView2.Columns.Clear(); 
            SqlConnection con = new SqlConnection("server=.;database=pubs;user id=sa;password=123"); 
            con.Open(); 
            DataSet dst = new DataSet(); 
            SqlCommand cmd = new SqlCommand("select title_id,type from titles", con); 
            SqlDataAdapter dap = new SqlDataAdapter(cmd); 
            dap.Fill(dst); 
            /con.Close(); 

            this.listView2.Columns.Add("调用接口", 80, HorizontalAlignment.Center); 
            this.listView2.Columns.Add("成功数", 80, HorizontalAlignment.Center);//增加列标题 
            this.listView2.Columns.Add("失败数",80,HorizontalAlignment.Center); 

            listView2.View = View.Details; 
            listView2.GridLines = true;//显示网格线。。 
            string[] str1 = new string[3]; 
            foreach (DataRow row in dataset.Tables[0].Rows) 
            { 
                str1[0] = row["Interface"].ToString(); 
                str1[1] = row["sucnum"].ToString(); 
                str1[2] = row["failnum"].ToString(); 
                ListViewItem item = new ListViewItem(str1, 0); 
                listView2.Items.Add(item); 
            } 

    }

[caicai_45]

好像在线程中访问控件是有问题的，需要用控件的invoke方法

[yhy0611]

这个嘛，不调试的时候不会出这个错误的，你只要在你操作的线程中创建这个控件就OK了