Parameters

buffer

A char array. When this method returns, contains the specified character array with the values between index and (index + count -1) replaced by the characters read from the current source. [Edit]

index

A int that specifies the place in buffer at which to begin writing. [Edit]

count

A int that specifies the maximum number of characters to read. If the end of the stream is reached before count of characters is read into buffer , this method returns. [Edit]

Returns

A int containing the number of characters that were read, or zero if there were no more characters left to read. Can be less than count if the end of the stream has been reached. [Edit]

Exceptions

Type	Reason
ArgumentNullException	buffer is null. [Edit]
ArgumentException	(index + count ) > buffer.Length. [Edit]
ArgumentOutOfRangeException	index < 0 - or- count < 0. [Edit]
System.IO.IOException	An I/O error occurred. [Edit]

Remarks

TextReader.ReadBlock(Char[], int, int) is a blocking version of this method.

Operation

The provided character array can be changed only in the specified range.

[Edit]

Requirements

Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0