IsolatedStorageFile::GetStore Method (IsolatedStorageScope, Type^, Type^)
Obtains isolated storage corresponding to the isolated storage scope given the application domain and assembly evidence types.
Assembly: mscorlib (in mscorlib.dll)
public: static IsolatedStorageFile^ GetStore( IsolatedStorageScope scope, Type^ domainEvidenceType, Type^ assemblyEvidenceType )
Parameters
- scope
-
Type:
System.IO.IsolatedStorage::IsolatedStorageScope
A bitwise combination of the enumeration values.
- domainEvidenceType
-
Type:
System::Type^
The type of the Evidence that you can chose from the list of Evidence present in the domain of the calling application. null lets the IsolatedStorage object choose the evidence.
- assemblyEvidenceType
-
Type:
System::Type^
The type of the Evidence that you can chose from the list of Evidence present in the domain of the calling application. null lets the IsolatedStorage object choose the evidence.
Return Value
Type: System.IO.IsolatedStorage::IsolatedStorageFile^An object that represents the parameters.
| Exception | Condition |
|---|---|
| SecurityException | Sufficient isolated storage permissions have not been granted. |
| ArgumentException | The scope is invalid. |
| IsolatedStorageException | The evidence type provided is missing in the assembly evidence list. -or- An isolated storage location cannot be initialized. -or- scope contains the enumeration value Application, but the application identity of the caller cannot be determined, because the ActivationContext for the current application domain returned null. -or- scope contains the value Domain, but the permissions for the application domain cannot be determined. -or- scope contains Assembly, but the permissions for the calling assembly cannot be determined. |
This is the overload of GetStore most likely to be called from application code.
This overload of GetStore opens an isolated store for the evidence types that are passed in.
Note |
|---|
If the scope parameter is Domain and the application domain in which the assembly is installed does not have IsolatedStorageFilePermission, the GetStore method will return an IsolatedStorageFile object without a quota. Later attempts to create an IsolatedStorageFile object using the IsolatedStorageFile object that does not have a quota will fail with an IsolatedStorageException. |
The following code example demonstrates the GetStore method. For the complete context of this example, see the IsolatedStorageFile overview.
// Retrieve an IsolatedStorageFile for the current Domain and Assembly. IsolatedStorageFile^ isoFile = IsolatedStorageFile::GetStore( static_cast<IsolatedStorageScope>(IsolatedStorageScope::User | IsolatedStorageScope::Assembly | IsolatedStorageScope::Domain), (Type^)nullptr, nullptr ); IsolatedStorageFileStream^ isoStream = gcnew IsolatedStorageFileStream( this->userName,FileMode::Open,FileAccess::ReadWrite,isoFile );
for using isolated storage. Associated enumeration: AdministerIsolatedStorageByUser
when invoked late-bound through mechanisms such as Type::InvokeMember. Associated enumeration: ReflectionPermissionFlag::MemberAccess
Available since 1.1
