c# - Clickonce 完全信任应用程序更新因 Windows 8 上的 TrustNotGrantedException 而失败

Question

我们在 C# 中有一个 winforms clickonce 应用程序，它被授予完全信任并使用有效证书签名。

该应用程序在 Windows XP、Windows 7 上运行良好并正确更新。但是，在 Windows 8 计算机上，它只是无法更新。该应用程序虽然运行正常。但是，升级到更高版本的第一个更新请求失败并显示:System.Deployment.Application.TrustNotGrantedException

调用 ApplicationDeployment::CheckForDetailedUpdate() 失败后代码失败。想知道为什么会发生这种情况，因为完全相同的代码在所有以前版本的 Windows 上运行良好。任何帮助将不胜感激。下面是相关的堆栈跟踪:

System.Deployment.Application.TrustNotGrantedException: User has refused to grant required permissions to the application.
   at System.Deployment.Application.ApplicationTrust.RequestTrust(SubscriptionState subState, Boolean isShellVisible, Boolean isUpdate, ActivationContext actCtx, TrustManagerContext tmc)
   at System.Deployment.Application.DeploymentManager.DetermineTrustCore(Boolean blocking, TrustParams tp)
   at System.Deployment.Application.DeploymentManager.DetermineTrust(TrustParams trustParams)
   at System.Deployment.Application.ApplicationDeployment.CheckForDetailedUpdate(Boolean persistUpdateCheckResult)
   at System.Deployment.Application.ApplicationDeployment.CheckForDetailedUpdate()

Answer 1

我唯一一次看到此堆栈跟踪是在我尝试调用 CheckForDetailedUpdate() 时，而没有事先设置显式信任。添加以下代码后，更新检查有效。

// Setup the trust level
var deployment = ApplicationDeployment.CurrentDeployment;
var appId = new ApplicationIdentity(deployment.UpdatedApplicationFullName);
var unrestrictedPerms = new PermissionSet(PermissionState.Unrestricted);
var appTrust = new ApplicationTrust(appId) {
    DefaultGrantSet = new PolicyStatement(unrestrictedPerms),
    IsApplicationTrustedToRun = true,
    Persist = true
};
ApplicationSecurityManager.UserApplicationTrusts.Add(appTrust);

// Check for update
var info = deployment.CheckForDetailedUpdate();