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StreamReader.Peek Method

When it is called by trusted application, returns the next available character but does not consume it.

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

public override int Peek()

Return Value

Type: System.Int32
An integer representing the next character to be read, or -1 if no more characters are available or the stream does not support seeking.

ExceptionCondition
IOException

An I/O error occurs.

The Peek method returns an integer value in order to determine whether the end of the file, or another error has occurred. This allows a user to first check if the returned value is -1 before casting it to a Char type.

This method overrides Peek.

The current position of the StreamReader object is not changed by Peek. The returned value is -1 if no more characters are currently available.

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

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

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