64 lines
2.0 KiB
C#
64 lines
2.0 KiB
C#
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/*
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* C# Program to Demonstrate DefaultIfEmpty case
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*/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace program
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{
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class student
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{
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public string Name { get; set; }
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public string stuID { get; set; }
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}
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class studentdetails
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{
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public string SID { get; set; }
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public string City { get; set; }
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}
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class Program
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{
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static void Main(string[] args)
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{
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List<student> objstudent = new List<student>
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{
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new student{ Name="Bob",stuID="I001"},
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new student{ Name="Vijay",stuID="I002"},
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new student{ Name="Jerry",stuID="I003"},
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new student{ Name="Tom",stuID="I004"},
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new student{ Name="Senthil",stuID="I005"},
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};
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List<studentdetails> objstudentdetails = new List<studentdetails>
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{
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new studentdetails{ SID="I001",City="Delhi"},
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new studentdetails{ SID="I002",City="Mumbai"},
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new studentdetails{ SID="I007",City="Chennai"},
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new studentdetails{ SID="I008",City="Pune"},
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new studentdetails{ SID="I009",City=""},
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};
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var resultDefaultIfEmpty = from stu in objstudent
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join studentdetails in objstudentdetails on stu.stuID equals studentdetails.SID into ResultEmpstudentdetails
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from output in ResultEmpstudentdetails.DefaultIfEmpty()
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select new
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{
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studentName = stu.Name,
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City = output != null ? output.City : null
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};
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Console.WriteLine(string.Join("\n", resultDefaultIfEmpty.Select(stu => " student Name = " +
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stu.studentName + ", City Name = " + stu.City).ToArray<string>()));
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Console.ReadLine();
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}
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}
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}
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/*
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student Name = Bob, City Name = Delhi
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student Name = Vijay, City Name = Mumbai
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student Name = Jerry, City Name =
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student Name = Tom, City Name =
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student Name = Senthil, City Name =
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