我正在开发一个 Windows 窗体启动器/更新/启动屏幕应用程序,用于 C# 中的 Windows 7 Panasonic Toughbook(平板电脑)。启动器在我的桌面和我的一个 Toughbook 上运行良好......但是,在“真实环境”设备上进行测试需要 20 多秒才能在第一次启动后显示表单。(一旦显示表单,它就会快速运行,这是应用程序假定的工作方式。)安装后在设备上首次启动很快,但首次启动后需要很长时间。
我不确定如何进行测试,因为这是在无法通过 USB 连接或连接到我们的网络的设备上。应用程序是否打开文件似乎并不重要。事实上,在大多数情况下,应用程序只是打开,发现现在检查另一个更新还为时过早,启动主应用程序并杀死自己。
当前流程如下所示:
构造函数:
public MyConstructor() { InitializeComponent(); }
表单加载:
private void Form1_Load(object sender, EventArgs e)
{
if (!isLoaded)
{
System.Configuration.ConfigurationFileMap fileMap = new ConfigurationFileMap("parentApplication.exe.config"); //Path to your config file
System.Configuration.Configuration configuration = System.Configuration.ConfigurationManager.OpenMappedMachineConfiguration(fileMap);
log4net.Config.XmlConfigurator.Configure();
WebRequest.url = configManager.AppSettings.Settings["SURL"].Value;
// Set a timer to run the update process momentarily to allow the UI thread to update and display. (UI must be idle to run Timer)
updateTimer = new System.Timers.Timer(1000);
updateTimer.Elapsed += new ElapsedEventHandler(beginUpdate);
updateTimer.Enabled = true;
isLoaded = true;
}
}
更新过程
private void beginUpdate(Object sender, EventArgs e)
{
// If any of this fails, we still want to launch the main application.
try
{
// Prevent the timer from doing anything else.
updateTimer.Enabled = false;
string version = "0";
try
{
Version v = AssemblyName.GetAssemblyName("ParentApplication.exe").Version;
version = v.ToString();
}
catch
{
version = "0";
}
updateProgress(5);
DateTime buffer = DateTime.Now.AddMinutes(-5);
DateTime last = Convert.ToDateTime(configManager.AppSettings.Settings[lastCheck].Value);
int comp = DateTime.Compare(buffer, last);
if (comp < 0)
{
// Begin update process
updateApplication(version);
}
updateProgress(100);
System.Threading.Thread.Sleep(1000);
}
catch (Exception er)
{
logger.Error("Error in update application.", er);
}
// The updater can't update itself. Launch the external application
// to handle the updating of the updater. This application also launches
// the main executable.
Process sync = new Process();
sync.StartInfo.UseShellExecute = false;
sync.StartInfo.FileName = "FinishUpdate.exe";
sync.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
sync.StartInfo.Verb = "runas";
sync.Start();
Application.Exit();
}