BinaryReader.PeekChar Method
Assembly: mscorlib (in mscorlib.dll)
If surrogate characters can be expected in the stream use the ReadChars method, then set the stream back to the original position.
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. | |
| Write to a text file. | |
| Read from a text file. | |
| Read from a binary file. | |
| Write to a binary file. |
This code example is part of a larger example provided for the BinaryReader class.
BinaryReader binReader =
new BinaryReader(File.Open(fileName, FileMode.Open));
try
{
// If the file is not empty,
// read the application settings.
if(binReader.PeekChar() != -1)
{
aspectRatio = binReader.ReadSingle();
lookupDir = binReader.ReadString();
autoSaveTime = binReader.ReadInt32();
showStatusBar = binReader.ReadBoolean();
}
}
// If the end of the stream is reached before reading
// the four data values, ignore the error and use the
// default settings for the remaining values.
catch(EndOfStreamException e)
{
Console.WriteLine("{0} caught and ignored. " +
"Using default values.", e.GetType().Name);
}
finally
{
binReader.Close();
}
BinaryReader binReader =
new BinaryReader(File.Open(fileName, FileMode.Open));
try {
// If the file is not empty,
// read the application settings.
if ( binReader.PeekChar() !=-1 ) {
aspectRatio = binReader.ReadSingle();
lookupDir = binReader.ReadString();
autoSaveTime = binReader.ReadInt32();
showStatusBar = binReader.ReadBoolean();
}
}
// If the end of the stream is reached before reading
// the four data values, ignore the error and use the
// default settings for the remaining values.
catch(EndOfStreamException e) {
Console.WriteLine("{0} caught and ignored. "
+ "Using default values.", e.GetType().get_Name());
}
finally {
binReader.Close();
}
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
