List<T>.RemoveRange Method
Removes a range of elements from the List<T>.
Namespace: System.Collections.Generic
Assembly: mscorlib (in mscorlib.dll)
Parameters
- index
- Type: System.Int32
The zero-based starting index of the range of elements to remove.
- count
- Type: System.Int32
The number of elements to remove.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | index is less than 0. -or- count is less than 0. |
| ArgumentException | index and count do not denote a valid range of elements in the List<T>. |
The following code example demonstrates the RemoveRange method and various other methods of the List<T> class that act on ranges. After the list has been created and modified, the RemoveRange method is used to remove two elements from the list, beginning at index location 2.
using System; using System.Collections.Generic; public class Example { public static void Main() { string[] input = { "Brachiosaurus", "Amargasaurus", "Mamenchisaurus" }; List<string> dinosaurs = new List<string>(input); Console.WriteLine("\nCapacity: {0}", dinosaurs.Capacity); Console.WriteLine(); foreach( string dinosaur in dinosaurs ) { Console.WriteLine(dinosaur); } Console.WriteLine("\nAddRange(dinosaurs)"); dinosaurs.AddRange(dinosaurs); Console.WriteLine(); foreach( string dinosaur in dinosaurs ) { Console.WriteLine(dinosaur); } Console.WriteLine("\nRemoveRange(2, 2)"); dinosaurs.RemoveRange(2, 2); Console.WriteLine(); foreach( string dinosaur in dinosaurs ) { Console.WriteLine(dinosaur); } input = new string[] { "Tyrannosaurus", "Deinonychus", "Velociraptor"}; Console.WriteLine("\nInsertRange(3, input)"); dinosaurs.InsertRange(3, input); Console.WriteLine(); foreach( string dinosaur in dinosaurs ) { Console.WriteLine(dinosaur); } Console.WriteLine("\noutput = dinosaurs.GetRange(2, 3).ToArray()"); string[] output = dinosaurs.GetRange(2, 3).ToArray(); Console.WriteLine(); foreach( string dinosaur in output ) { Console.WriteLine(dinosaur); } } } /* This code example produces the following output: Capacity: 3 Brachiosaurus Amargasaurus Mamenchisaurus AddRange(dinosaurs) Brachiosaurus Amargasaurus Mamenchisaurus Brachiosaurus Amargasaurus Mamenchisaurus RemoveRange(2, 2) Brachiosaurus Amargasaurus Amargasaurus Mamenchisaurus InsertRange(3, input) Brachiosaurus Amargasaurus Amargasaurus Tyrannosaurus Deinonychus Velociraptor Mamenchisaurus output = dinosaurs.GetRange(2, 3).ToArray() Amargasaurus Tyrannosaurus Deinonychus */
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
