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 }
							 | 
						|||
| 
								 | 
							
								```
							 |