private void btn_checkUpdateNow_Click(object sender, EventArgs e)
{
if (_versionChecker != null && _versionChecker.IsBusy) return;
//btn_checkUpdateNow.Enabled = false;
btn_checkUpdateNow.Text = "";
btn_checkUpdateNow.Image = Resources.checking;
//picture_checking.Visible = true;
lb_Version.Text = Application.ProductVersion;
errorProvider.Clear();
if (_versionChecker == null)
{
_versionChecker = new VersionChecker(AppSettings.CheckForUpdateUrl);
_versionChecker.Finished += version =>
{
if (btn_checkUpdateNow.IsDisposed) return;
btn_checkUpdateNow.Invoke(new Action(() =>
{
//btn_checkUpdateNow.Enabled = true;
btn_checkUpdateNow.Text = "立即检查";
btn_checkUpdateNow.Image = null;
//picture_checking.Visible = false;
lb_Version.Text = Application.ProductVersion;
lb_Version.ForeColor = Color.DarkGray;
if (version == null)
{
errorProvider.SetIconPadding(btn_checkUpdateNow, 4);
errorProvider.SetError(btn_checkUpdateNow, "可能由于服务器错误，检查更新失败");
return;
}
if (version.Version != Application.ProductVersion)
{
using (var frm = new UpdateInfoForm(AppSettings.ProductHomePage, version))
{
frm.ShowDialog();
}
}
else
{
lb_Version.Text = Application.ProductVersion + " (已为最新)";
lb_Version.ForeColor = Color.CornflowerBlue;
}
}));
};
_versionChecker.ErrorHappened += exception =>
{
#if DEBUG
Console.WriteLine(exception);
#endif
btn_checkUpdateNow.Invoke(new Action(() =>
{
//btn_checkUpdateNow.Enabled = true;
btn_checkUpdateNow.Text = "立即检查";
btn_checkUpdateNow.Image = null;
//picture_checking.Visible = false;
errorProvider.SetIconPadding(btn_checkUpdateNow, 4);
errorProvider.SetError(btn_checkUpdateNow, string.Format("可能由于网络错误，检查更新失败: \n{0}", exception.Message));
}));
};
}
_versionChecker.CheckAsync();
}
//仅在启动一段时间后检查一次更新，
private static void ScheduledUpdateCheck(object sender, NotifyIcon tray)
{
if (!config.Get<bool>(ConfigKeys.AutoCheckForUpdate)) return;
var checker = new VersionChecker(AppSettings.CheckForUpdateUrl);
checker.Finished += info =>
{
var whatsNew = info.WhatsNew.Length > 50 ? info.WhatsNew.Substring(0, 50) : info.WhatsNew;
if (info.Version != Application.ProductVersion)
{
tray.BalloonTipClicked += (o, args) =>
{
if (info.Version == Application.ProductVersion) return;
using (var frm = new UpdateInfoForm(ConfigurationManager.AppSettings.Get(Constants.ProductHomePageAppSettingKey), info))
{
frm.ShowDialog();
tray.Visible = config.Get(ConfigKeys.TrayIconVisible, true);
}
};
if (!tray.Visible)
{
tray.Visible = true;
}
tray.ShowBalloonTip(1000 * 15, Application.ProductName + "新版本可用!", "版本:" + info.Version + "\n" + whatsNew, ToolTipIcon.Info);
}
checker.Dispose();
checker = null;
GC.Collect();
};
checker.ErrorHappened += e =>
{
Debug.WriteLine("Program.ScheduledUpdateCheck Error:" + e.Message);
checker.Dispose();
checker = null;
GC.Collect();
};
checker.CheckAsync();
}