using System;

using System.Linq;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        var elmahErrorList = new List<ElmahError>{

            new ElmahError{ ErrorId = Guid.NewGuid(), Application = "Something",Message = "Hello World" , TimeUtc = DateTime.Now },

                new ElmahError{ ErrorId = Guid.NewGuid(), Application = "Something Else",Message = "Another Message" , TimeUtc = DateTime.Now }

        };

        var logEntryList = new List<LogEntry>{

            new LogEntry{ ID = 1, SourceClass = "Something",Message = "Hello World" , LogDate = DateTime.Now },

                new LogEntry{ ID = 1, SourceClass = "Something Else",Message = "Another Message" , LogDate = DateTime.Now }

        };

        var internalErrorsList = new List<InternalErrors>();

        var elmahErrorListinternalErrorses = elmahErrorList.Select(e => new InternalErrors

                                                                   {

                                                                       Id = e.ErrorId.ToString(),

                                                                       Application = e.Application,

                                                                       Message = e.Message,

                                                                       Type = e.Type,

                                                                       User = e.User,

                                                                       Date = e.TimeUtc,

                                                                       StatusCode = e.StatusCode,

                                                                       AllXml = e.AllXml,

                                                                       Sequence = e.Sequence

                                                                   });

        internalErrorsList.AddRange(elmahErrorListinternalErrorses);

        var elmahErrorListlogEntryLists = logEntryList.Select(l => new InternalErrors

                                                              {

                                                                  Id = l.ID.ToString(),

                                                                  Priority = l.Priority,

                                                                  Application = l.SourceClass,

                                                                  Message = l.Message,

                                                                  Type = l.Category,

                                                                  User = l.UserID,

                                                                  Date = l.LogDate

                                                              });

        internalErrorsList.AddRange(elmahErrorListlogEntryLists);

        internalErrorsList.ForEach(f =>

                                   {

                                       Console.Write(f.Id); Console.Write("\t");

                                       Console.Write(f.Application);Console.Write("\t");

                                       Console.Write(f.Message);Console.Write("\t");

                                       Console.Write(f.Date);Console.Write("\t");

                                       Console.WriteLine();

                                   });

    }

    public class InternalErrors

    {

        public string Id { get; set; } //L:ID && E:ErrorId

        public int Priority { get; set; } //L:Priority

        public string Application { get; set; } //L:SourceClass && E:Application

        public string Message { get; set; } //L:Message && E:Message

        public string Type { get; set; } //L:Category && E:Type

        public string User { get; set; } //L:UserID && E:User

        public string ProcessID { get; set; } //L:ProcessID

        public DateTime Date { get; set; } //L:LogDate && E:TimeUtc

        public int StatusCode { get; set; } //E:StatusCode

        public string AllXml { get; set; } //E:AllXml

        public int Sequence { get; set; } //E:Sequence

        public int ErrorCount { get; set; } //E:ErrorCount

    }

    public class ElmahError

    {

        public System.Guid ErrorId { get; set; }

        public System.String Application { get; set; }

        public System.String Host { get; set; }

        public System.String Type { get; set; }

        public System.String Source { get; set; }

        public System.String Message { get; set; }

        public System.String User { get; set; }

        public System.Int32 StatusCode { get; set; }

        public System.DateTime TimeUtc { get; set; }

        public System.Int32 Sequence { get; set; }

        public System.String AllXml { get; set; }

    }

    public class LogEntry

    {

        public Int64 ID { get; set; }

        public DateTime LogDate { get; set; }

        public Int16 Priority { get; set; }

        public string SourceClass { get; set; }

        public string Category { get; set; }

        public string Message { get; set; }

        public string UserID { get; set; }

        public string ProcessID { get; set; }

    }

}