c# - Microsoft.Phone.ni.dll 中的 UnauthorizedAccessException

Question

我正在尝试获取 Windows Phone 8 中的 device_id。我试过这样做:

byte[] myDeviceID = (byte[])Microsoft.Phone.Info.DeviceExtendedProperties.GetValue("DeviceUniqueId");
string DeviceIDAsString = Convert.ToBase64String(myDeviceID);

还有这个:

DeviceExtendedProperties.GetValue("DeviceUniqueId").ToString();

两者都导致以下异常:

An exception of type 'System.UnauthorizedAccessException' occurred in Microsoft.Phone.ni.dll but was not handled in user code

Additional information: Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))

我该如何解决这个问题？

Answer 1

您需要在应用程序 list 文件中添加所需的功能。特别是，尝试添加此功能:

ID_CAP_IDENTITY_DEVICE

供引用:

• MSDN : How to modify the app manifest file for Windows Phone 8
• MSDN : App capabilities and hardware requirements for Windows Phone 8