Question

我遇到了ClickOnce应用程序的问题，当我调用它CheckForUpdate()一段时间后，我的重启系统工作正常。大约一个小时后，它开始崩溃。我在一个单独的线程上运行它，ClickOnce应用程序在我们的本地网络上。

错误代码：

System.Deployment.Application.DeploymentException：此部署的应用程序已安装，具有不同的应用程序标识。在System.Deployment.Application.SubscriptionStore.CheckAndReferenceApplication（SubscriptionState subState，DefinitionAppId appId，Int64 transactionId）在System.Deployment.Application.DeploymentManager.BindCore（布尔阻塞，TempFile和tempDeploy，TempDirectory＆amp; tempAppDir，FileStream＆amp; refTransaction，String＆amp; productName）在System.Deployment.Application.DeploymentManager.Bind（）在System.Deployment.Application.ApplicationDeployment.CheckForDetailedUpdate（Boolean persistUpdateCheckResult）在System.Deployment.Application.ApplicationDeployment.CheckForUpdate（）

以下是方法：

private void RestartUpdate()
{
    bool running = true;
    while (running)
    {
        Thread.Sleep(5000);
        try
        {
            if (!RESTARTING)
            {
                if (ApplicationDeployment.IsNetworkDeployed)
                {
                    ApplicationDeployment updateCheck = ApplicationDeployment.CurrentDeployment;
                    bool newUpdate = updateCheck.CheckForUpdate(); **<---- Problem**
                    if (newUpdate == true)
                    {
                        RESTARTING = true;
                        updateCheck.UpdateCompleted +=
                        new AsyncCompletedEventHandler(
                        Deployment_UpdateCompleted);
                        updateCheck.UpdateAsync();                               
                    }
                }
            }
        }
        catch (Exception e)
        {
            SendErrorMessageToServer(e.ToString());
        }
    }
}

你知道为什么会发生这种情况吗？

编辑：

找到James Miles的答案，他在检查更新时似乎完全绕过了Click-once部署API：

//Used to use the Clickonce API but we've uncovered a pretty serious bug which results in a COMException and the loss of ability
//to check for updates. So until this is fixed, we're resorting to a very lo-fi way of checking for an update.
var manifestFile = new WebClient().DownloadString(updateLocation);
var xdoc = XDocument.Parse(manifestFile);
XNamespace nsSys = "urn:schemas-microsoft-com:asm.v1";
var version = new Version(xdoc.Descendants(nsSys + "assemblyIdentity").First().Attribute("version").Value);

Answer 1

我选择绕过OneClick API的解决方案。

string manifestFile = new WebClient().DownloadString(@"\\*\*.application");
XDocument xdoc = XDocument.Parse(manifestFile);
XNamespace nsSys = "urn:schemas-microsoft-com:asm.v1";
Version versionNew = new Version(xdoc.Descendants(nsSys + "assemblyIdentity").First().Attribute("version").Value);
int result = applicationDeplayment.CurrentVersion.CompareTo(versionNew);
if (result < 0)
{
   applicationDeplayment.UpdateAsync();
}

ClickOnce CheckForUpdate（）在一段时间后返回null

1 个答案: