다음을 통해 공유


StreamReader.DiscardBufferedData Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Updated: December 2010

Clears the internal buffer.

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

Syntax

'Declaration
Public Sub DiscardBufferedData
public void DiscardBufferedData()

Remarks

Use the DiscardBufferedData method to reset the internal buffer for the StreamReader object. You need to call this method only when the position of the internal buffer and the BaseStream do not match. These positions can become mismatched when you read data into the buffer and then seek a new position in the underlying stream. This method slows performance and should be used only when absolutely necessary, such as when you want to read a portion of the contents of a StreamReader object more than once.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Change History

Date

History

Reason

December 2010

Clarified when to call DiscardBufferedData.

Customer feedback.