Επεξεργασία

Κοινή χρήση μέσω


StringReader.Peek Method

Definition

Returns the next available character but does not consume it.

public:
 override int Peek();
public override int Peek ();
override this.Peek : unit -> int
Public Overrides Function Peek () As Integer

Returns

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

Exceptions

The current reader is closed.

Remarks

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. FileInfo.Length

Applies to

See also