ReadInt64 Method

BinaryReader.ReadInt64 Method ()


Reads an 8-byte signed integer from the current stream and advances the current position of the stream by eight bytes.

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

public virtual long ReadInt64()

Return Value

Type: System.Int64

An 8-byte signed integer read from the current stream.

Exception Condition

The end of the stream is reached.


The stream is closed.


An I/O error occurs.

BinaryReader does not restore the file position after an unsuccessful read.

BinaryReader reads this data type in little-endian format.

For a list of common I/O tasks, see Common I/O Tasks.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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