1.3 KiB
| title | localeTitle |
|---|---|
| To Dictionary | إلى قاموس |
ToDictionary
Greates قاموس من DataSet؛
التوقيع
Enumerable.ToDictionary<TSource, TKey> Method (IEnumerable<TSource>, Func<TSource, TKey>)
مثال
`var fruits = new List() { 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 } };
// Generates a Dictionary of Fruits by Id var fruitsById = fruits.ToDictionary(k => k.Id, v => v); // Dictionary<int, Fruit>
// Generates a dictionary fruits by color var fruitsByColor = fruits.GroupBy(g => g.Color).ToDictionary(k => k.Key, v => v.ToList()); // Dictionary of list of fruits by color
// Generates a dictionary of quantity of fruits by color var fruitsByColor = fruits.GroupBy(g => g.Color).ToDictionary(k => k.Key, v => v.Sum(s => s.Quantity)); // Dictionary of sum of fruits by color `