FileNotFoundException.cs

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using System.Runtime.CompilerServices;
using System.Runtime.Serialization;
 
namespace System.IO;
 
[Serializable]
[TypeForwardedFrom("mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")]
public class FileNotFoundException : IOException
{
    public override string Message
    {
        get
        {
            SetMessageField();
            return _message;
        }
    }
 
    public string? FileName { get; }
 
    public string? FusionLog { get; }
 
    private FileNotFoundException(string fileName, int hResult)
        : base(null)
    {
        base.HResult = hResult;
        FileName = fileName;
        SetMessageField();
    }
 
    public FileNotFoundException()
        : base(SR.IO_FileNotFound)
    {
        base.HResult = -2147024894;
    }
 
    public FileNotFoundException(string? message)
        : base(message)
    {
        base.HResult = -2147024894;
    }
 
    public FileNotFoundException(string? message, Exception? innerException)
        : base(message, innerException)
    {
        base.HResult = -2147024894;
    }
 
    public FileNotFoundException(string? message, string? fileName)
        : base(message)
    {
        base.HResult = -2147024894;
        FileName = fileName;
    }
 
    public FileNotFoundException(string? message, string? fileName, Exception? innerException)
        : base(message, innerException)
    {
        base.HResult = -2147024894;
        FileName = fileName;
    }
 
    private void SetMessageField()
    {
        if (_message == null)
        {
            if (FileName == null && base.HResult == -2146233088)
            {
                _message = SR.IO_FileNotFound;
            }
            else if (FileName != null)
            {
                _message = FileLoadException.FormatFileLoadExceptionMessage(FileName, base.HResult);
            }
        }
    }
 
    public override string ToString()
    {
        string text = GetType().ToString() + ": " + Message;
        if (!string.IsNullOrEmpty(FileName))
        {
            text = text + "\r\n" + SR.Format(SR.IO_FileName_Name, FileName);
        }
        if (base.InnerException != null)
        {
            text = text + "\r\n ---> " + base.InnerException.ToString();
        }
        if (StackTrace != null)
        {
            text = text + "\r\n" + StackTrace;
        }
        if (FusionLog != null)
        {
            if (text == null)
            {
                text = " ";
            }
            text = text + "\r\n\r\n" + FusionLog;
        }
        return text;
    }
 
    protected FileNotFoundException(SerializationInfo info, StreamingContext context)
        : base(info, context)
    {
        FileName = info.GetString("FileNotFound_FileName");
        FusionLog = info.GetString("FileNotFound_FusionLog");
    }
 
    public override void GetObjectData(SerializationInfo info, StreamingContext context)
    {
        base.GetObjectData(info, context);
        info.AddValue("FileNotFound_FileName", FileName, typeof(string));
        info.AddValue("FileNotFound_FusionLog", FusionLog, typeof(string));
    }
}