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StreamReader.DiscardBufferedData Method

Allows a StreamReader object to discard its current data.

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

public void DiscardBufferedData ()
public void DiscardBufferedData ()
public function DiscardBufferedData ()
Not applicable.

Use DiscardBufferedData to seek to a known location in the underlying stream and then begin reading from this new point, or to read the contents of a StreamReader object more than once. Because this method can cause slower performance, use it sparingly and only when you need it for a specific scenario.

Because read methods do not update the current position of the underlying stream, some class instances return more characters than are actually in the stream. One way around this problem is to use DiscardBufferedData, which causes the StreamReader object to discard its internal buffer contents.

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

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0