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IsolatedStorageFileStream.Write Method

Writes a block of bytes to the IsolatedStorageFileStream object using data read from a byte array.

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

public override void Write(
	byte[] buffer,
	int offset,
	int count


Type: System.Byte[]
The buffer to write.
Type: System.Int32
The byte offset in buffer from which to begin.
Type: System.Int32
The maximum number of bytes to write.


The isolated store has been removed.


The write attempt exceeds the quota for the IsolatedStorageFileStream object.


Isolated storage is disabled.


offset and count describe an invalid range in buffer.


buffer is null.


offset or count is negative.


The stream is closed or an internal error has occurred.


Another thread may have caused an unexpected change in the position of the operating system’s file handle.


The stream does not support writing.


The stream has been disposed.

The offset parameter gives the offset of the byte in the buffer at which to begin reading, and the count parameter gives the number of bytes that will be written to this IsolatedStorageFileStream object. If the write operation is successful, the current position of the IsolatedStorageFileStream object is advanced by the number of bytes written. If an exception occurs, the current position of the IsolatedStorageFileStream object is unchanged.


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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