MemoryStream Constructor (Byte[], Int32, Int32)
Initializes a new non-resizable instance of the MemoryStream class based on the specified region (index) of a byte array.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- buffer
- Type: System.Byte[]
The array of unsigned bytes from which to create this stream.
- index
- Type: System.Int32
The index into buffer at which the stream begins.
- count
- Type: System.Int32
The length of the stream in bytes.
| Exception | Condition |
|---|---|
| ArgumentNullException | buffer is null. |
| ArgumentOutOfRangeException | index or count is less than zero. |
| ArgumentException | The buffer length minus index is less than count. |
The CanRead, CanSeek, and CanWrite properties are all set to true, but the capacity cannot be changed. Capacity is set to count.
The length of the stream cannot be set to a value greater than the initial length of the specified byte array; however, the stream can be truncated (see SetLength).
This constructor does not expose the underlying stream. GetBuffer throws UnauthorizedAccessException. However, you can write to the stream.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
