ToList(capacity)
LINQ ToList() extension method with an extra capacity argument. This can boost the speed of creating the list.
Source
public static List<TSource> ToList<TSource>(this IEnumerable<TSource> source, int capacity) {
if (source == null) {
throw new ArgumentNullException(nameof(source));
}
if (capacity < 0) {
throw new ArgumentOutOfRangeException(nameof(capacity), "Non-negative number required.");
}
var list = new List<TSource>(capacity);
list.AddRange(source);
return list;
}Example
IEnumerable<string> data = GetData();
var l = data.ToList(100000);
Console.WriteLine(l.Count);
Console.WriteLine(l.Capacity);