在我的Windows窗体我有一个文本框和一个按钮，文本框tb_LogBox是多行文本框，我想创建一个后台工作是应该调用的函数，即LogTimer.DnT（）时，我被编译并运行Visual Studio中抛出InvalidOperationException异常。

实际的错误，我越来越 跨线程操作无效：控制'tb_LogBox'从一个线程比它创建于其他线程访问。下面的示例code说明了什么，我试图做

 私人无效的button1_Click（对象发件人，EventArgs的）
{
    尝试
    {
    VAR体重=新的BackgroundWorker（）;
        bw.DoWork + = ExecuteOperations;
        bw.RunWorkerAsync（）;
    }
    赶上（例外前）
    {
        tb_LogBox.AppendText（Environment.NewLine += @ =+ ex.Message ++ ex.Source）;
    }
}

私人无效ExecuteOperations（对象发件人，DoWorkEventArgs E）
{
    VAR FuncCall =新LogTimer（）;
    tb_LogBox.AppendText（Environment.NewLine + FuncCall.DnT（））; //行我得到的错误。上
}

公共类LogTimer
{
    公共字符串DNT（）
    {
    常量字符串datePat = @D / MM / YYYY;
    变种日期时间= DateTime.Now（）;
    返回则DateTime.ToString（da​​tePat）;
    }
}
 

解决方案

尝试使用开始invoke方法：

 的BeginInvoke（新动作（（）=＆GT;
    {
       tb_LogBox.AppendText（Environment.NewLine + FuncCall.DnT（））;
    }））;
 

这会比调用顺畅。

In my windows form I have a text box and a button, the text box "tb_LogBox" is multiline text box I am trying to create a background worker that is supposed to call a function i.e. "LogTimer.DnT()" when I compile is and run it Visual studio throws InvalidOperationException.

The actual Error I am getting Cross-thread operation not valid: Control 'tb_LogBox' accessed from a thread other than the thread it was created on. The following sample code illustrate what I am trying to do

private void button1_Click(object sender, EventArgs e)
{
    try
    {
    	var bw = new BackgroundWorker();
        bw.DoWork += ExecuteOperations ;
        bw.RunWorkerAsync();
    }
    catch (Exception ex)
    {
        tb_LogBox.AppendText(Environment.NewLine + " =@= " + ex.Message+" "+ex.Source);
    }
}

private void ExecuteOperations(object sender, DoWorkEventArgs e)
{
    var FuncCall = new LogTimer();
    tb_LogBox.AppendText(Environment.NewLine + FuncCall.DnT()); // the line i am getting the error. on 
}

public class LogTimer
{
    public string DnT()
    {
    	const string datePat = @"d/MM/yyyy";
    	var dateTime = DateTime.Now();
    	return dateTime.ToString(datePat);
    }
}

Try to use the begin invoke method :

    BeginInvoke(new Action(() =>
    {
       tb_LogBox.AppendText(Environment.NewLine + FuncCall.DnT());
    }));

This would be smoother than Invoke.