24 lines
1.1 KiB
Markdown
24 lines
1.1 KiB
Markdown
|
---
|
||
|
|
title: LastOrDefault
|
||
|
|
localeTitle: LastOrDefault
|
||
|
|
---
|
||
|
|
\# أي إرجاع العنصر الأخير في تسلسل يلبي شرطًا أو قيمة افتراضية في حالة عدم العثور على أي عنصر ### التوقيع
|
||
|
|
|
||
|
|
`Enumerable.LastOrDefault<TSource> Method (IEnumerable<TSource>, Func<TSource, Boolean>)
|
||
|
|
`
|
||
|
|
|
||
|
|
\## مثال
|
||
|
|
|
||
|
|
`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 }
|
||
|
|
};
|
||
|
|
// Returns the last fruit where the Color is Yellow
|
||
|
|
var lastYellow = fruits.LastOrDefault(f => f.Color == "Yellow"); // Mango
|
||
|
|
// Returns the last fruit where the quantity is 20
|
||
|
|
var lastQuantityOfTwenty = fruits.LastOrDefault(f => f.Quantity == 20); // null
|
||
|
|
`
|