最简单的方法是调用如下：

 Application.Current.Dispatcher.Invoke(new Action(() =>
             {
                    try
                    {
                        ///
                    }
                    catch (Exception)
                    {
                      //
                    }


                    }
     ));

我更喜欢这个：

private void UpdateNowProcessing(string nowProcessing)
{
    if (this.InvokeRequired)
    {
        Action<string> d = UpdateNowProcessing;
        Invoke(d, nowProcessing);
    }
    else
    {
        this.progressDialog.Next(nowProcessing);
    }            
}

这一解决方案类似于上面使用.NET Framework 3.0的解决方案，但它解决了编译时安全支持的问题。

public  static class ControlExtension
{
    delegate void SetPropertyValueHandler<TResult>(Control souce, Expression<Func<Control, TResult>> selector, TResult value);

    public static void SetPropertyValue<TResult>(this Control source, Expression<Func<Control, TResult>> selector, TResult value)
    {
        if (source.InvokeRequired)
        {
            var del = new SetPropertyValueHandler<TResult>(SetPropertyValue);
            source.Invoke(del, new object[]{ source, selector, value});
        }
        else
        {
            var propInfo = ((MemberExpression)selector.Body).Member as PropertyInfo;
            propInfo.SetValue(source, value, null);
        }
    }
}

要使用：

this.lblTimeDisplay.SetPropertyValue(a => a.Text, "some string");
this.lblTimeDisplay.SetPropertyValue(a => a.Visible, false);

如果用户传递错误的数据类型，编译器将失败。

this.lblTimeDisplay.SetPropertyValue(a => a.Visible, "sometext");

将一些公共变量放在一个单独的类中以保存值。

例子：

public  class data_holder_for_controls
{
    // It will hold the value for your label
    public string status = string.Empty;
}

class Demo
{
    public static  data_holder_for_controls d1 = new data_holder_for_controls();

    static void Main(string[] args)
    {
        ThreadStart ts = new ThreadStart(perform_logic);
        Thread t1 = new Thread(ts);
        t1.Start();
        t1.Join();
        //your_label.Text=d1.status; --- can access it from any thread
    }

    public static void perform_logic()
    {
        // Put some code here in this function
        for (int i = 0; i < 10; i++)
        {
            // Statements here
        }
        // Set the result in the status variable
        d1.status = "Task done";
    }
}

这是一个古老问题的新视角，使用了更实用的风格。如果您在所有项目中都保留TaskXM类，那么只有一行代码不再担心跨线程更新。

public class Example
{
    /// <summary>
    /// No more delegates, background workers, etc. Just one line of code as shown below.
    /// Note it is dependent on the Task Extension method shown next.
    /// </summary>
    public async void Method1()
    {
        // Still on the GUI thread here if the method was called from the GUI thread
        // This code below calls the extension method which spins up a new task and calls back.
        await TaskXM.RunCodeAsync(() =>
        {
            // Running an asynchronous task here
            // Cannot update the GUI thread here, but can do lots of work
        });
        // Can update GUI on this line
    }
}


/// <summary>
/// A class containing extension methods for the Task class
/// </summary>
public static class TaskXM
{
    /// <summary>
    /// RunCodeAsyc is an extension method that encapsulates the Task.run using a callback
    /// </summary>
    /// <param name="Code">The caller is called back on the new Task (on a different thread)</param>
    /// <returns></returns>
    public async static Task RunCodeAsync(Action Code)
    {
        await Task.Run(() =>
        {
            Code();
        });
        return;
    }
}

当您在UI线程中时，可以向它请求其同步上下文任务调度器。它将为您提供一个TaskScheduler，用于调度UI线程上的所有内容。

然后，您可以将任务链接起来，这样当结果准备就绪时，另一个任务（在UI线程上安排）会选择它并将其分配给标签。

public partial class MyForm : Form
{
  private readonly TaskScheduler _uiTaskScheduler;
  public MyForm()
  {
    InitializeComponent();
    _uiTaskScheduler = TaskScheduler.FromCurrentSynchronizationContext();
  }

  private void buttonRunAsyncOperation_Click(object sender, EventArgs e)
  {
    RunAsyncOperation();
  }

  private void RunAsyncOperation()
  {
    var task = new Task<string>(LengthyComputation);
    task.ContinueWith(antecedent =>
                         UpdateResultLabel(antecedent.Result), _uiTaskScheduler);
    task.Start();
  }

  private string LengthyComputation()
  {
    Thread.Sleep(3000);
    return "47";
  }

  private void UpdateResultLabel(string text)
  {
    labelResult.Text = text;
  }
}

这适用于任务（而不是线程），这是目前编写并发代码的首选方式。