C# | ArrayList.InsertRange() Method
Last Updated :
06 Jun, 2019
Improve
ArrayList.InsertRange(Int32, ICollection) Method in C# is used to insert the elements from a collection into the ArrayList at a specified index. That is the inserted element belongs to a collection(i.e. queue etc).
Syntax:
csharp
csharp
public virtual void InsertRange (int index, ICollection element);Parameters:
- index: It is the index, where the new elements to be inserted.
- element: It is the ICollection whose elements are going to be inserted into the ArrayList at a specified index.
- ArgumentNullException: If the element is null.
- ArgumentOutOfRangeException: If the index is less than zero or index is greater than counter.
- NotSupportedException: If the ArrayList is read-only or the ArrayList has a fixed size.
// C# program to demonstrate the
// ArrayList.InsertRange(Int32,
// ICollection) Method
using System;
using System.Collections;
class GFG {
// Main Method
public static void Main()
{
// initializes a new ArrayList
ArrayList ArrList = new ArrayList();
// adding values in the
// ArrayList using "Add"
ArrList.Add("A");
ArrList.Add("D");
ArrList.Add("E");
ArrList.Add("F");
// initializes a new Stack
// as collection
Stack s = new Stack();
// pushing values in the stack
// values are pop as B, C
s.Push("C");
s.Push("B");
// Displays the ArrayList and the Queue
Console.WriteLine("The ArrayList initially has:");
Display(ArrList);
Console.WriteLine("The collection initially has:");
Display(s);
// Copies the elements of the stack
// to the ArrayList at index 1.
ArrList.InsertRange(1, s);
// Displays the ArrayList.
Console.WriteLine("After insert the collection in the ArrList:");
Display(ArrList);
}
// Display function
public static void Display(IEnumerable ArrList)
{
foreach(Object a in ArrList)
{
Console.Write(" " + a);
}
Console.WriteLine();
}
}
Output:
Example 2:+
The ArrayList initially has: A D E F The collection initially has: B C After insert the collection in the ArrList: A B C D E F
// C# program to demonstrate the
// ArrayList.InsertRange(Int32,
// ICollection) Method
using System;
using System.Collections;
class GFG {
// Main Method
public static void Main()
{
// initializes a new ArrayList
ArrayList ArrList = new ArrayList();
// adding values in the ArrayList
// using "Insert" method
ArrList.Insert(0, "A");
ArrList.Insert(1, "D");
ArrList.Insert(2, "E");
ArrList.Insert(3, "G");
// Initializes a new Stack
// as collection
Stack s = new Stack();
// pushing values in the stack
// values are pop as B, C
s.Push("C");
s.Push("B");
// Displays the ArrayList and the Queue.
Console.WriteLine("The ArrayList initially has:");
Display(ArrList);
Console.WriteLine("The collection initially has:");
Display(s);
// Copies the elements of the stack
// to the ArrayList at index 1.
ArrList.InsertRange(1, s);
// Displays the ArrayList.
Console.WriteLine("After insert the collection in the ArrList:");
Display(ArrList);
// insert F by finding the index of G
// using IndexOf() method
ArrList.Insert(ArrList.IndexOf("G"), "F");
Console.WriteLine("After inserting F before G:");
Display(ArrList);
}
// Display function
public static void Display(IEnumerable ArrList)
{
foreach(Object a in ArrList)
{
Console.Write(" " + a);
}
Console.WriteLine();
}
}
Output:
Reference:
The ArrayList initially has: A D E G The collection initially has: B C After insert the collection in the ArrList: A B C D E G After inserting F before G: A B C D E F G
