Allows a StreamReader to discard its current data.
[Visual Basic] Public Sub DiscardBufferedData() [C#] public void DiscardBufferedData(); [C++] public: void DiscardBufferedData(); [JScript] public function DiscardBufferedData();
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 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 to discard its internal buffer contents.
The following table lists examples of other typical or related I/O tasks.
|To do this...||See the example in this topic...|
|Create a text file.||Writing Text to a File|
|Write to a text file.||Writing Text to a File|
|Read from a text file.||Reading Text from a File|
|Append text to a file.||Opening and Appending to a Log File|
|Get the size of a file.||FileInfo.Length|
|Get the attributes of a file.||File.GetAttributes|
|Set the attributes of a file.||File.SetAttributes|
|Determine if a file exists.||File.Exists|
|Read from a binary file.||Reading and Writing to a Newly Created Data File|
|Write to a binary file.||Reading and Writing to a Newly Created Data File|
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework, Common Language Infrastructure (CLI) Standard