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IsolatedStorageFileStream Constructor (String, FileMode, IsolatedStorageFile)

IsolatedStorageFileStream Constructor (String, FileMode, IsolatedStorageFile)

Initializes a new instance of the IsolatedStorageFileStream class giving access to the file designated by path, in the specified mode, and in the context of the IsolatedStorageFile specified by isf.

Namespace:  System.IO.IsolatedStorage
Assembly:  mscorlib (in mscorlib.dll)

	String^ path, 
	FileMode mode, 
	IsolatedStorageFile^ isf


Type: System::String

The relative path of the file within isolated storage.

Type: System.IO::FileMode

One of the FileMode values.

Type: System.IO.IsolatedStorage::IsolatedStorageFile

The IsolatedStorageFile in which to open the IsolatedStorageFileStream.


The path is badly formed.


The path is nullptr.


No file was found and the mode is set to Open.


isf does not have a quota.

The mode parameter indicates whether a new file should be created, an existing one used, and so on.

Caution noteCaution

When you compile a set of characters with a particular cultural setting and retrieve those same characters with a different cultural setting, the characters might not be interpretable, and can cause an exception to be thrown.

The following code example demonstrates the use of this constructor. For the complete context of this example, see the IsolatedStorageFileStream overview.

// This is the stream to which data will be written.
IsolatedStorageFileStream^ source = gcnew IsolatedStorageFileStream( this->userName,FileMode::OpenOrCreate,isoFile );

// This is the stream from which data will be read.
Console::WriteLine( "Is the source file readable?  {0}", (source->CanRead ? (String^)"true" : "false") );
Console::WriteLine( "Creating new IsolatedStorageFileStream for Archive." );

// Open or create a writable file.
IsolatedStorageFileStream^ target = gcnew IsolatedStorageFileStream( String::Concat("Archive\\",this->userName),FileMode::OpenOrCreate,FileAccess::Write,FileShare::Write,isoFile );

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8
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