ExternalException.cs

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using System.Runtime.CompilerServices;
using System.Runtime.Serialization;
 
namespace System.Runtime.InteropServices;
 
[Serializable]
[TypeForwardedFrom("mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")]
public class ExternalException : SystemException
{
    public virtual int ErrorCode => base.HResult;
 
    public ExternalException()
        : base(SR.Arg_ExternalException)
    {
        base.HResult = -2147467259;
    }
 
    public ExternalException(string? message)
        : base(message)
    {
        base.HResult = -2147467259;
    }
 
    public ExternalException(string? message, Exception? inner)
        : base(message, inner)
    {
        base.HResult = -2147467259;
    }
 
    public ExternalException(string? message, int errorCode)
        : base(message)
    {
        base.HResult = errorCode;
    }
 
    protected ExternalException(SerializationInfo info, StreamingContext context)
        : base(info, context)
    {
    }
 
    public override string ToString()
    {
        string message = Message;
        string text = $"{GetType()} (0x{base.HResult:X8})";
        if (!string.IsNullOrEmpty(message))
        {
            text = text + ": " + message;
        }
        Exception innerException = base.InnerException;
        if (innerException != null)
        {
            text = text + "\r\n ---> " + innerException.ToString();
        }
        if (StackTrace != null)
        {
            text = text + "\r\n" + StackTrace;
        }
        return text;
    }
}