C# Eval - LINQ Dynamic - LINQ WhereDynamic Method | C# Online Compiler

C# Eval - LINQ Dynamic - LINQ WhereDynamic Method by ZZZ Projects

// C# Eval Expression
// Doc: https://eval-expression.net/linq-dynamic

// @nuget: Z.Expressions.Eval

/*
## LINQ WhereDynamic Method

The LINQ WhereDynamic method filters a sequence of values based on a predicate. You can use a dynamic string expression to create the predicate.

In this example, we will create a list of product and filter them by their type.

See more: https://eval-expression.net/linq-dynamic
*/

using System;
using System.Collections.Generic;
using System.Linq;
using Z.Expressions;

public class Program
{
	public static void Main()
	{
		var product1 = new Product() { Name = "C# Eval Expression", Url = "https://eval-expression.net/", Type = "Paid" };
		var product2 = new Product() { Name = "Dapper Plus", Url = "https://dapper-plus.net/", Type = "Paid" };
		var product3 = new Product() { Name = "Entity Framework Extensions", Url = "https://entityframework-extensions.net/", Type = "Paid" };
		var product4 = new Product() { Name = ".NET Fiddle", Url = "https://dotnetfiddle.net/", Type = "Free" };
		var product5 = new Product() { Name = "SQL Fiddle", Url = "https://sqlfiddle.com/", Type = "Free" };
		var product6 = new Product() { Name = "ZZZ Code AI", Url = "https://zzzcode.ai/", Type = "Free" };
		
		var list = new List<Product>() { product1, product2, product3, product4, product5, product6 };
		
		var whereList1 = list.WhereDynamic("x => x.Type == 'Paid'").ToList();
		var whereList2 = list.WhereDynamic("x => x.Type == type", new { type = "Paid" }).ToList();
		
		FiddleHelper.WriteTable("1 - whereList1:", whereList1);
		FiddleHelper.WriteTable("2 - whereList2:", whereList2);
	}
	
	public class Product
	{
		public string Name { get; set; }
		public string Url { get; set; }
		public string Type { get; set; }
	}
}

​x
 
// C# Eval Expression
// Doc: https://eval-expression.net/linq-dynamic
​
// @nuget: Z.Expressions.Eval
​
/*
## LINQ WhereDynamic Method
​
The LINQ WhereDynamic method filters a sequence of values based on a predicate. You can use a dynamic string expression to create the predicate.
​
In this example, we will create a list of product and filter them by their type.
​
See more: https://eval-expression.net/linq-dynamic
*/
​
using System;
using System.Collections.Generic;
using System.Linq;
using Z.Expressions;
​
public class Program
{
    public static void Main()
    {
        var product1 = new Product() { Name = "C# Eval Expression", Url = "https://eval-expression.net/", Type = "Paid" };
        var product2 = new Product() { Name = "Dapper Plus", Url = "https://dapper-plus.net/", Type = "Paid" };
        var product3 = new Product() { Name = "Entity Framework Extensions", Url = "https://entityframework-extensions.net/", Type = "Paid" };
        var product4 = new Product() { Name = ".NET Fiddle", Url = "https://dotnetfiddle.net/", Type = "Free" };
        var product5 = new Product() { Name = "SQL Fiddle", Url = "https://sqlfiddle.com/", Type = "Free" };
        var product6 = new Product() { Name = "ZZZ Code AI", Url = "https://zzzcode.ai/", Type = "Free" };
        
        var list = new List<Product>() { product1, product2, product3, product4, product5, product6 };
        
        var whereList1 = list.WhereDynamic("x => x.Type == 'Paid'").ToList();
        var whereList2 = list.WhereDynamic("x => x.Type == type", new { type = "Paid" }).ToList();
        
        FiddleHelper.WriteTable("1 - whereList1:", whereList1);
        FiddleHelper.WriteTable("2 - whereList2:", whereList2);
    }
    
    public class Product
    {
        public string Name { get; set; }
        public string Url { get; set; }
        public string Type { get; set; }
    }
}
​
​

Compilation error (line 20, col 11): The name 'Alien' does not exist in the current context
Compilation error (line 27, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 28, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 33, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 34, col 5): The name 'Alien' does not exist in the current context
Compilation error (line 35, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 42, col 10): The name 'Alien' does not exist in the current context
Compilation error (line 49, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 50, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 55, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 56, col 5): The name 'Alien' does not exist in the current context
Compilation error (line 57, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 64, col 11): The name 'Alien' does not exist in the current context
Compilation error (line 71, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 72, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 77, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 78, col 5): The name 'Alien' does not exist in the current context
Compilation error (line 79, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 87, col 10): The name 'Alien' does not exist in the current context
Compilation error (line 94, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 95, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 100, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 101, col 5): The name 'Alien' does not exist in the current context
Compilation error (line 102, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 114, col 11): The name 'Hound' does not exist in the current context
Compilation error (line 121, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 122, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 127, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 128, col 5): The name 'Hound' does not exist in the current context
Compilation error (line 129, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 136, col 10): The name 'Hound' does not exist in the current context
Compilation error (line 143, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 144, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 149, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 150, col 5): The name 'Hound' does not exist in the current context
Compilation error (line 151, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 158, col 11): The name 'Hound' does not exist in the current context
Compilation error (line 165, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 166, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 171, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 172, col 5): The name 'Hound' does not exist in the current context
Compilation error (line 173, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 181, col 10): The name 'Hound' does not exist in the current context
Compilation error (line 188, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 189, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 194, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 195, col 5): The name 'Hound' does not exist in the current context
Compilation error (line 196, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 209, col 11): The name 'Human' does not exist in the current context
Compilation error (line 216, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 217, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 222, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 223, col 5): The name 'Human' does not exist in the current context
Compilation error (line 224, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 231, col 10): The name 'Human' does not exist in the current context
Compilation error (line 238, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 239, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 244, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 245, col 5): The name 'Human' does not exist in the current context
Compilation error (line 246, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 253, col 11): The name 'Human' does not exist in the current context
Compilation error (line 260, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 261, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 266, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 267, col 5): The name 'Human' does not exist in the current context
Compilation error (line 268, col 8): The name 'PlayerData' does not exist in the current context
Compilation error (line 276, col 10): The name 'Human' does not exist in the current context
Compilation error (line 283, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 284, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 289, col 5): The name 'PlayerData' does not exist in the current context
Compilation error (line 290, col 5): The name 'Human' does not exist in the current context
Compilation error (line 291, col 8): The name 'PlayerData' does not exist in the current context

Last Run:	9:06:45 pm
Compile:	0s
Execute:	0.156s
Memory:	0b
CPU:	0s

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