Peek Method

StringReader.Peek Method ()


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.

Exception Condition

The current reader is closed.

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 the TextReader.Peek method.

The current position of the StringReader is not changed by this operation.

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.

How to: Write Text to a File

Write to a text file.

How to: Write Text to a File

Read from a text file.

How to: Read Text from a File

Get the size of a file.


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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