C# | Get an enumerator that iterates through the List Last Updated : 11 Jul, 2025 Comments Improve Suggest changes Like Article Like Report List<T>.GetEnumerator Method is used to returns an enumerator that iterates through the List<T>. Syntax: public System.Collections.Generic.List<T>.Enumerator GetEnumerator (); Return Value: It returns an List<T>Enumerator for the List<T>. Below programs illustrate the use of List<T>.GetEnumerator Method: Example 1: CSharp // C# code to get an enumerator // that iterates through the List<T>. using System; using System.Collections.Generic; class GFG { // Driver code public static void Main() { // Creating a List of int List<int> mylist = new List<int>(); // Inserting elements into List mylist.Add(45); mylist.Add(78); mylist.Add(32); mylist.Add(231); mylist.Add(123); mylist.Add(76); mylist.Add(726); mylist.Add(716); mylist.Add(876); // To get an Enumerator // for the List. List<int>.Enumerator em = mylist.GetEnumerator(); display(em); } // display method static void display(IEnumerator<int> em) { while (em.MoveNext()) { int val = em.Current; Console.WriteLine(val); } } } Output: 45 78 32 231 123 76 726 716 876 Example 2: CSharp // C# code to get an enumerator // that iterates through the List<T>. using System; using System.Collections.Generic; class GFG { // Driver code public static void Main() { // Creating a List of string List<string> mylist = new List<string>(); // Inserting elements into List mylist.Add("C#"); mylist.Add("Java"); mylist.Add("C"); mylist.Add("C++"); // To get an Enumerator // for the List. List<string>.Enumerator em = mylist.GetEnumerator(); display(em); } // display method static void display(IEnumerator<string> em) { while (em.MoveNext()) { string val = em.Current; Console.WriteLine(val); } } } Output: C# Java C C++ Note: The foreach statement of the C# language hides the complexity of the enumerators. Therefore, using foreach is recommended, instead of directly manipulating the enumerator. Enumerators can be used to read the data in the collection, but they cannot be used to modify the underlying collection. Current returns the same object until either MoveNext or Reset is called. MoveNext sets Current to the next element. An enumerator remains valid as long as the collection remains unchanged. If changes are made to the collection, such as adding, modifying, or deleting elements, the enumerator is irrecoverably invalidated and its behavior is undefined. This method is an O(1) operation. Reference: https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.list-1.getenumerator?view=netframework-4.7.2 Comment More infoAdvertise with us Next Article C# | Get an enumerator that iterates through the ListDictionary K Kirti_Mangal Follow Improve Article Tags : C# CSharp-method CSharp-Generic-List CSharp-Generic-Namespace Similar Reads C# | Get an enumerator that iterates through the SortedList SortedList.GetEnumerator Method is used to an IDictionaryEnumerator object that iterates through a SortedList object. Syntax: public virtual System.Collections.IDictionaryEnumerator GetEnumerator (); Return Value: This method returns an IDictionaryEnumerator object for the SortedList object. Below p 3 min read C# | Get an enumerator that iterates through the SortedSet SortedSet<T>.GetEnumerator Method is used to return an enumerator that iterates through the SortedSet<T>. Syntax: public System.Collections.Generic.SortedSet<T>.Enumerator GetEnumerator (); Return Value: This method returns an enumerator that iterates through the SortedSet<T> 2 min read C# | Get an enumerator that iterates through the ListDictionary ListDictionary.GetEnumerator method is used to returns an IDictionaryEnumerator that iterates through the ListDictionary. Syntax: public System.Collections.IDictionaryEnumerator GetEnumerator (); Return Value: This method returns an IDictionaryEnumerator for the ListDictionary. Below programs illust 2 min read Getting an enumerator that iterates through the Stack in C# Stack<T>.GetEnumerator Method is used to get an IEnumerator that iterates through the Stack. And it comes under the System.Collections.Generic namespace. Syntax: public System.Collections.Generic.Stack<T>.Enumerator GetEnumerator (); Below programs illustrate the use of the above-discuss 2 min read C# | Get an enumerator that iterates through the Hashtable Hashtable.GetEnumerator Method is used to returns an IDictionaryEnumerator that iterates through the Hashtable. Syntax: public virtual System.Collections.IDictionaryEnumerator GetEnumerator (); Return Value: It returns an IDictionaryEnumerator for the Hashtable. Below programs illustrate the use of 2 min read C# | Get an enumerator that iterates through the Dictionary Dictionary<TKey, TValue>.GetEnumerator method is used to return an enumerator that iterates through the Dictionary<TKey, TValue>. Syntax: public System.Collections.Generic.Dictionary<TKey,TValue>.Enumerator GetEnumerator (); Return Value: This method returns an Dictionary<TKey, 3 min read Like