C# | Copy the elements of collection over a range of elements in ArrayList
ArrayList.SetRange(Int32, ICollection) Method is used to copy the elements of a collection over a range of elements in the ArrayList.
Syntax:
public virtual void SetRange (int index, System.Collections.ICollection c);
Parameters:
index: It is a zero-based ArrayList index at which to start copying the elements of c. The type of this parameter is System.Int32.
c: It is an ICollection whose elements to copy to the ArrayList. The collection itself cannot be null, but it can contain elements that are null.
Exceptions:
- ArgumentNullException: If the value of c is null.
- NotSupportedException: If the ArrayList is read-only.
- ArgumentOutOfRangeException: If the index is less than zero or [index + number of elements in c] > Count.
Below given are some examples to understand the implementation in a better way:
Example 1:
// C# Program to illustrate the // SetRange() Method using System; using System.Collections; class GFG { // Main method public static void Main() { // Create and initialize ArrayList ArrayList mylist = new ArrayList(); mylist.Add( "G" ); mylist.Add( "e" ); mylist.Add( "e" ); mylist.Add( "k" ); mylist.Add( "s" ); mylist.Add( "G" ); mylist.Add( "F" ); mylist.Add( "G" ); // There are total 4 elements string [] str = { "This" , "is" , "C#" , "Tutorial" }; // using SetRange() Method // starting from index 0 mylist.SetRange(0, str); Show( "ArrayList is" , mylist); } // show method to display the result static void Show( string arr, ArrayList mylist) { for ( int j = 0; j < mylist.Count; j++) { Console.WriteLine(arr + "[" + j + "] = " + mylist[j]); } } } |
Output:
ArrayList is[0] = This ArrayList is[1] = is ArrayList is[2] = C# ArrayList is[3] = Tutorial ArrayList is[4] = s ArrayList is[5] = G ArrayList is[6] = F ArrayList is[7] = G
Example 2:
// C# Program to illustrate the // SetRange() Method using System; using System.Collections; class GFG { // Main method public static void Main() { // Create and initialize ArrayList ArrayList mylist1 = new ArrayList(); mylist1.Add( "Hello " ); mylist1.Add( "Welcome " ); mylist1.Add( "to " ); mylist1.Add( "online " ); mylist1.Add( "portal " ); mylist1.Add( "of " ); mylist1.Add( "Beginner " ); mylist1.Add( "for " ); mylist1.Add( "Beginner " ); // Create and initialize new ArrayList ArrayList mylist2 = new ArrayList(); mylist2.Add( "This " ); mylist2.Add( "is " ); mylist2.Add( "C# " ); mylist2.Add( "tutorial" ); mylist2.Add( "." ); // Displays the values of 6 // elements of mylist1 starting // at index 0. ArrayList result = mylist1.GetRange(0, 6); Console.WriteLine( "String from index number 0 to 6:" ); { foreach (Object obj in result) Console.Write( "{0}" , obj); Console.WriteLine(); } // Replace the value of 5 element // starting from index 1 // with the values in mylist2 mylist1.SetRange(1, mylist2); // Display the result result = mylist1.GetRange(0, 6); Console.WriteLine( "After SetRange() Method:" ); { foreach (Object obj in result) Console.Write( "{0}" , obj); Console.WriteLine(); } } } |
Output:
String from index number 0 to 6: Hello Welcome to online portal of After SetRange() Method: Hello This is C# tutorial.
Reference:
- https://docs.microsoft.com/en-us/dotnet/api/system.collections.arraylist.setrange?view=netframework-4.7.2
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