C# | Getting the value at the specified index of a SortedList object Last Updated : 11 Jul, 2025 Summarize Comments Improve Suggest changes Share Like Article Like Report SortedList.GetByIndex(Int32) Method is used to get the value at the specified index of a SortedList object. Syntax: public virtual object GetByIndex (int index); Here index is the zero-based index of the value to get. Return Value: It returns the value at the specified index of the SortedList object. Exception: This method will throw ArgumentOutOfRangeException if the index is outside the range of valid indexes for the SortedList object. Below programs illustrate the use of above-discussed method: Example 1: CSharp // C# code to get the value at the specified // index of a SortedList object. using System; using System.Collections; class Geeks { // Main Method public static void Main(String[] args) { // Creating a SortedList of integers SortedList mylist = new SortedList(); // Adding elements to SortedList mylist.Add("1", "C++"); mylist.Add("2", "Java"); mylist.Add("3", "DSA"); mylist.Add("4", "Python"); mylist.Add("5", "C#"); // getting the indexing and // store into a variable int i = 4; // getting the value at index 4 Console.WriteLine("Value at index {0} is {1}", i, mylist.GetByIndex(i)); } } Output: Value at index 4 is C# Example 2: CSharp // C# code to get the value at the specified // index of a SortedList object. using System; using System.Collections; class Geeks { // Main Method public static void Main(String[] args) { // Creating a SortedList of integers SortedList mylist = new SortedList(); // Adding elements to SortedList mylist.Add("First", "Ram"); mylist.Add("Second", "Shyam"); mylist.Add("Third", "Mohit"); mylist.Add("Fourth", "Rohit"); mylist.Add("Fifth", "Manish"); // getting the indexing and // store into a variable // it will give error as // index is out of range int i = 7; // getting the value at index 7 Console.WriteLine("Value at index {0} is {1}", i, mylist.GetByIndex(i)); } } Runtime Error: Unhandled Exception: System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index Reference: https://learn.microsoft.com/en-us/dotnet/api/system.collections.sortedlist.getbyindex?view=netframework-4.7.2 Comment More infoAdvertise with us Next Article C# | Getting the index of the specified key in a SortedList object K Kirti_Mangal Follow Improve Article Tags : C# CSharp-method CSharp-Collections-Namespace CSharp-Collections-SortedList Similar Reads C# | Getting index of the specified value in a SortedList object SortedList.IndexOfValue(Object) Method is used to get the zero-based index of the first occurrence of the specified value in a SortedList object. Syntax: public virtual int IndexOfValue (object value); Here, value is the Value which is to be located in the SortedList object. The value can be null. R 3 min read C# | Getting index of the specified value in a SortedList object SortedList.IndexOfValue(Object) Method is used to get the zero-based index of the first occurrence of the specified value in a SortedList object. Syntax: public virtual int IndexOfValue (object value); Here, value is the Value which is to be located in the SortedList object. The value can be null. R 3 min read C# | Getting the key at the specified index of a SortedList object SortedList.GetKey(Int32) Method is used to get the key at the specified index of a SortedList object. Syntax: public virtual object GetKey (int index); Here, index is the zero-based index of the key to get. Return Value: This method returns the key at the specified index of the SortedList object. Ex 2 min read C# | Getting the key at the specified index of a SortedList object SortedList.GetKey(Int32) Method is used to get the key at the specified index of a SortedList object. Syntax: public virtual object GetKey (int index); Here, index is the zero-based index of the key to get. Return Value: This method returns the key at the specified index of the SortedList object. Ex 2 min read C# | Getting the index of the specified key in a SortedList object SortedList.IndexOfKey(Object) Method is used to get the zero-based index of the specified key in a SortedList object. Syntax: public virtual int IndexOfKey (object key); Here, key is the Key which is to be located in the SortedList object. Return Value: This method returns the zero-based index of ty 3 min read C# | Getting the index of the specified key in a SortedList object SortedList.IndexOfKey(Object) Method is used to get the zero-based index of the specified key in a SortedList object. Syntax: public virtual int IndexOfKey (object key); Here, key is the Key which is to be located in the SortedList object. Return Value: This method returns the zero-based index of ty 3 min read Like