Linq FirstOrDefault() null check in c#, C#

Linq FirstOrDefault() null check in c#

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            try{
                //Your code goes here
                PlayerSettingsResponsible objPlayer = new PlayerSettingsResponsible();
                objPlayer.Designation="DesigOne";
                objPlayer.IdPlayerDeviceSettingsType=1;//Change equal to 2 gives null
                objPlayer.Value="ValueOne";
                List<PlayerSettingsResponsible> objPlayerList = new List<PlayerSettingsResponsible>();
                objPlayerList.Add(objPlayer);
                PlayerSettingsResponsible objPlayerSearch = objPlayerList.FirstOrDefault(r => r.IdPlayerDeviceSettingsType != null && r.IdPlayerDeviceSettingsType == 1);
                if(objPlayerSearch == null)
                {
                    Console.WriteLine("Null Object");
                    return;
                }
                string sValue = objPlayerSearch.Value;
                Console.WriteLine(sValue);
            }
            catch(Exception e){Console.WriteLine("Exception: "+e.Message);}
        }
    }
    public class PlayerSettingsResponsible
    {
        public string Designation { get; set; }
        public int? IdPlayerDeviceSettingsType { get; set; }
        public string Value { get; set; }
    }
}


run \| edit \| history \| help	0

Please log in to post a comment.