ClickOnce手动更新

            if (ApplicationDeployment.IsNetworkDeployed == true)
            {
                ApplicationDeployment thisDeployment = ApplicationDeployment.CurrentDeployment;
                // this.Text = "正在检测更新";
                this.txt_version.Text = thisDeployment.CurrentVersion.ToString();
                if (thisDeployment.CheckForUpdate() == true)
                {
                    thisDeployment.UpdateAsync();
                    thisDeployment.UpdateCompleted += (s, e) =>
                    {
                        if (e.Error == null)
                        {
                            MessageBox.Show("更新完毕,将要重启程序!");
                            Application.Current.Shutdown();
                            System.Windows.Forms.Application.Restart();
                        }
                        else
                        {
                            MessageBox.Show(e.Error.ToString());
                        }
                    };
                    thisDeployment.UpdateProgressChanged += (s, e) =>
                    {
                        string progressText = String.Format("{0:D}K out of {1:D}K downloaded - {2:D}% complete", e.BytesCompleted / 1024, e.BytesTotal / 1024, e.ProgressPercentage);
                        downloadStatus.Text = progressText;
                    };
                }
                else
                {
                    MessageBox.Show("并没有新的版本进行更新!");
                }
            }
            else
            {
                MessageBox.Show("这不是网络发布的程序");
            }

参考文章：

http://www.cnblogs.com/sucsy/archive/2011/09/23/2186218.html

http://www.cnblogs.com/luyu/archive/2005/12/03/289938.html

http://www.cnblogs.com/chenxizhang/archive/2009/05/22/1486736.html