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 }
|
|||
|
```
|