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:
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.
Note: The collection cannot be null, but it can contain elements that are null.
Exceptions:
- 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.
Example 1:
// 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:
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
Example 2:+
// 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:
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
Reference: