31 lines
		
	
	
		
			1018 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			31 lines
		
	
	
		
			1018 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
|   | --- | |||
|  | title: Where | |||
|  | --- | |||
|  | 
 | |||
|  | # Where
 | |||
|  | 
 | |||
|  | Filters elements from the dataset. | |||
|  | 
 | |||
|  | ### Signature
 | |||
|  | ```csharp | |||
|  | Enumerable.Where<TSource> Method (IEnumerable<TSource>, Func<TSource, Boolean>) | |||
|  | ``` | |||
|  | 
 | |||
|  | ## Example
 | |||
|  | ```csharp | |||
|  | var fruits = new List<Fruit>() { | |||
|  |     new Fruit() { Id = 1, Name = "Orange",     Color = "Orange", Quantity: 3   }, | |||
|  |     new Fruit() { Id = 2, Name = "Strawberry", Color = "Red",    Quantity: 12  }, | |||
|  |     new Fruit() { Id = 3, Name = "Grape",      Color = "Purple", Quantity: 25  }, | |||
|  |     new Fruit() { Id = 4, Name = "Pineapple",  Color = "Yellow", Quantity: 1   }, | |||
|  |     new Fruit() { Id = 5, Name = "Apple",      Color = "Red",    Quantity: 5   }, | |||
|  |     new Fruit() { Id = 6, Name = "Mango",      Color = "Yellow", Quantity: 2   } | |||
|  | }; | |||
|  | 
 | |||
|  | // Fruits with more than 3 items | |||
|  | var moreThanThree = fruits.Where(f => f.Quantity > 3).ToList(); // { Strawberry, Grape, Apple } | |||
|  | 
 | |||
|  | // Fruits that are not red | |||
|  | var notRed = fruits.Where(f => f.Color != "Red").ToList(); // { Orange, Grape, Pineapple, Mango } | |||
|  | ``` |