How do I know current offset of BinaryReader in C#?

Question

I have source below:

public static void DisplayValues()
{
    float aspectRatio;
    string tempDirectory;
    int autoSaveTime;
    bool showStatusBar;

    if (File.Exists(fileName))
    {
        using (BinaryReader reader = new BinaryReader(File.Open(fileName, FileMode.Open)))
        {
            aspectRatio = reader.ReadSingle();
            tempDirectory = reader.ReadString();
    ------------------------------------------------> I want to know current offset.
            autoSaveTime = reader.ReadInt32();
            showStatusBar = reader.ReadBoolean();
        }

        Console.WriteLine("Aspect ratio set to: " + aspectRatio);
        Console.WriteLine("Temp directory is: " + tempDirectory);
        Console.WriteLine("Auto save time set to: " + autoSaveTime);
        Console.WriteLine("Show status bar: " + showStatusBar);
    }
}

I have to find out current offset of BinaryReader.

Weslee

Do note that you make the strong assumption that BinaryReader doesn't buffer bytes from the base stream. It does buffer bytes. But not in a way that will byte you. – Archean

Answer 1

You can obtain the underlying stream by

var stream = reader.BaseStream;

and get the position by

stream.Position

Koumis

Answer 2

BinaryReader br=null;
/ * init, read, ...*/
long pos=br.BaseStream.Position;

Constantin