跨线程程访问Win form 控件

//CrossThreadUtility.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace CrossThreadUtil
{
public static class CrossThreadUtility
{
public static void InvokeControlAction<t>(t cont, Action<t> action) where t : Control
{
if (cont.InvokeRequired)
{
cont.Invoke(new Action<t, Action<t>>(InvokeControlAction), new object[] { cont, action });
}
else
{
action(cont);
}
}
}
}

// Form.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace CrossThreadUtil
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
//Initialize and start the timer
System.Timers.Timer t = new System.Timers.Timer(1000);
t.Elapsed += new System.Timers.ElapsedEventHandler(t_Elapsed);
t.Start();
}

void t_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
CrossThreadUtility.InvokeControlAction<Label>(lblTime, lbl => lbl.Text = String.Format("The current time is: {0}", DateTime.Now.ToString("h:mm:ss tt")));
}
}
}

//Form1.Designer.cs

namespace CrossThreadUtil
{
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;

/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}

#region Windows Form Designer generated code

/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.lblTime = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// lblTime
//
this.lblTime.AutoSize = true;
this.lblTime.Font = new System.Drawing.Font("Microsoft Sans Serif", 14.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.lblTime.Location = new System.Drawing.Point(92, 133);
this.lblTime.Name = "lblTime";
this.lblTime.Size = new System.Drawing.Size(0, 24);
this.lblTime.TabIndex = 0;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(484, 324);
this.Controls.Add(this.lblTime);
this.Name = "Form1";
this.Text = "Clock";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
this.PerformLayout();

}

#endregion

private System.Windows.Forms.Label lblTime;
}
}