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C# FileStream.Read Method

黄舟
黄舟Original
2017-02-21 11:01:471443browse

Reads a block of bytes from the stream and writes the data in a given buffer.

public override int Read(
	byte[] array,
	int offset,
	int count
)


Parameters

  • array

  • Type:聽System.Byte[]

    When this method returns, contains the specified byte array with the values between聽offset聽and (offset聽+聽count聽- 1)聽replaced by the bytes read from the current source.

  • offset

  • Type:聽System.Int32

    The byte offset in聽array聽at which the read bytes will be placed.

  • count

  • Type:聽System.Int32

    The maximum number of bytes to read.

Return Value

Type:聽System.Int32
The total number of bytes read into the buffer. This might be less than the number of bytes requested if that number of bytes are not currently available, or zero if the end of the stream is reached.

Exceptions



##ArgumentExceptionObjectDisposedException
Exception Condition
ArgumentNullException

array聽is聽null.

ArgumentOutOfRangeException

offset聽or聽count聽is negative.

NotSupportedException

The stream does not support reading.

IOException

An I/O error occurred.

offsetListen and listencount Listen describe an invalid range inListenarray.

Methods were called after the stream was closed.


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