System.Exception.Data Property

Question

The System.Exception class (actually any exception) has Data property which is almost always empty. While throwing exceptions, should this field be of any use? Or does it have s

Answer 1

Another note here, what I do when I inherit an exception and add properties, is to make the properties actually get and set from the data dictionary, and not from local variables.

[Serializable]
public class PacketParseException : Exception
{
    public byte[] ByteData
    {
        get
        {
            return (byte[])this.Data["ByteData"];
        }
    }

    public PacketParseException(string message, byte[] data, Exception inner) : base(message, inner)
    {
        this.Data.Add("ByteData", data);
    }
}

The way I see it, then the internal data is available from an Exception as well, for example when logging, so no need to cast to actual type.