25304665 Linq with DefaultIfEmty with select new {} | C# Online Compiler

25304665 Linq with DefaultIfEmty with select new {} by Anonymous

using System;
using System.Linq;

public class Program
{
	public class PersonPOCO
	{
		public string name;
		public string country;
	/* and some more properties in your db */
	}

	public static void Main()
	{
		var persons = new[]
		{
			new PersonPOCO
			{
				name = "test",
				country = "FOO"
			},
			new PersonPOCO
			{
				name = "bar",
				country = "FOO"
			}
		};
		var oPerson = new {
			name = "test1",
			country = string.Empty
		};
		var name_country = (from person in persons
							where person.name == oPerson.name || person.country == oPerson.country
							select new {
								person.name,
								person.country
							}).DefaultIfEmpty(new {
			oPerson.name,
			oPerson.country
		}).First();
		Console.WriteLine("name: {0}; country: {1}", name_country.name, name_country.country);
	}
}

​x
 
using System;
using System.Linq;
​
public class Program
{
    public class PersonPOCO
    {
        public string name;
        public string country;
    /* and some more properties in your db */
    }
​
    public static void Main()
    {
        var persons = new[]
        {
            new PersonPOCO
            {
                name = "test",
                country = "FOO"
            },
            new PersonPOCO
            {
                name = "bar",
                country = "FOO"
            }
        };
        var oPerson = new {
            name = "test1",
            country = string.Empty
        };
        var name_country = (from person in persons
                            where person.name == oPerson.name || person.country == oPerson.country
                            select new {
                                person.name,
                                person.country
                            }).DefaultIfEmpty(new {
            oPerson.name,
            oPerson.country
        }).First();
        Console.WriteLine("name: {0}; country: {1}", name_country.name, name_country.country);
    }
}

Compilation error (line 4, col 7): The type or namespace name 'Json' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 36, col 21): The type or namespace name 'JsonSchema' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 51, col 28): The type or namespace name 'JsonSchema' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 22, col 26): The name 'JsonSchema' does not exist in the current context
Compilation error (line 36, col 51): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 37, col 25): The type or namespace name 'Dictionary<,>' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 37, col 44): The type or namespace name 'JsonSchema' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 39, col 28): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 40, col 31): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 43, col 28): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 44, col 31): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 51, col 59): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 52, col 15): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 53, col 17): The name 'MetaSchemas' does not exist in the current context
Compilation error (line 56, col 25): The type or namespace name 'Dictionary<,>' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 56, col 44): The type or namespace name 'JsonSchema' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 59, col 30): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 60, col 23): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 67, col 32): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 68, col 23): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 75, col 31): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 76, col 23): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 78, col 28): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 79, col 25): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 83, col 19): The type or namespace name 'Dictionary<,>' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 83, col 38): The type or namespace name 'JsonSchema' could not be found (are you missing a using directive or an assembly reference?)

Last Run:	10:18:09 pm
Compile:	0.007s
Execute:	0s
Memory:	0b
CPU:	0s

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