Getting Unable to determine application identity of the caller Error

Question

I need to store and retrieve data in Isolated storage mode in a winforms application. I have followed this msdn article and this is the code

  IsolatedStorageFile isoStore = IsolatedStorageFile.GetStore(IsolatedStorageScope.Machine | IsolatedStorageScope.Application,null,null);

When I exceute the above code I am getting Unable to determine application identity of the caller error.

Could anyone help me too solve this issue ?

Regards

Ramalingam S

Answer 1

In a WinForms application, GetMachineStoreForApplication() or IsolatedStorageScope.Application do not work. The application speciifc storages are designed for ClickOnce applications only.

Instead, use GetMachineStoreForAssembly() or IsolatedStorageScope.User if you want to store settings on a per-user basis.

Answer 2

Many examples from MSDN for Isolated storage appear incomplete.

You want to call these instead of GetStore:

• GetMachineStoreForApplication()
• GetMachineStoreForAssembly()
• GetMachineStoreForDomain()

Answer 3

Please use this:

IsolatedStorageFile.GetStore(IsolatedStorageScope.User | IsolatedStorageScope.Domain | IsolatedStorageScope.Assembly, null, null)