C# | Uri.MakeRelativeUri(Uri) Method Last Updated : 11 Jul, 2025 Comments Improve Suggest changes Like Article Like Report Uri.MakeRelativeUri(Uri) Method is used to determine the difference between two Uri instances. Syntax: public Uri MakeRelativeUri (Uri uri); Here, it takes the URI to compare to the current URI. Return Value: If the hostname and scheme of this URI instance and uri are the same, then this method returns a relative Uri that, when appended to the current URI instance, yields uri. If the hostname or scheme is different, then this method returns a Uri that represents the uri parameter. Exceptions: ArgumentNullException: If uri is null. UriFormatException: If this instance represents a relative URI, and this property is valid only for absolute URIs. Below programs illustrate the use of Uri.MakeRelativeUri(Uri) Method: Example 1: csharp // C# program to demonstrate the // Uri.MakeRelativeUri() Method using System; using System.Globalization; class GFG { // Main Method public static void Main() { // Create a base Uri. Uri address1 = new Uri("https://www.microsoft.com/en-us/); // Create a new Uri from a string. Uri address2 = new Uri("https://www.microsoft.com/en-us/?date=today"); // Determining the difference // between address1 and address2. // using MakeRelativeUri() method Uri uri = address1.MakeRelativeUri(address2); // Displaying the result Console.WriteLine("relative uri is : {0}", uri); } } Output: relative uri is : index.htm?date=today Example 2: For ArgumentNullException csharp // C# program to demonstrate the // Uri.MakeRelativeUri() Method using System; using System.Globalization; class GFG { // Main Method public static void Main() { try { // Create a base Uri. Uri address1 = new Uri("https://www.microsoft.com/en-us/); // Create a new Uri from a string. Uri address2 = null; // Determining the difference // between address1 and address2. // using MakeRelativeUri() method Uri uri = address1.MakeRelativeUri(address2); // Displaying the result Console.WriteLine("relative uri is : {0}", uri); } catch (ArgumentNullException e) { Console.WriteLine("uri should not be null"); Console.Write("Exception Thrown: "); Console.Write("{0}", e.GetType(), e.Message); } } } Output: uri should not be null Exception Thrown: System.ArgumentNullException Example 3: For UriFormatException csharp // C# program to demonstrate the // Uri.MakeRelativeUri() Method using System; using System.Globalization; class GFG { // Main Method public static void Main() { try { // Create a base Uri. Uri address1 = new Uri("https://www.microsoft.com/en-us/); // Determining the difference // between address1 and address2. // using MakeRelativeUri() method Uri uri = address1.MakeRelativeUri(new Uri("http:://www.contoso.com/??index.htm?date=today")); // Displaying the result Console.WriteLine("relative uri is : {0}", uri); } catch (ArgumentNullException e) { Console.WriteLine("uri should not be null"); Console.Write("Exception Thrown: "); Console.Write("{0}", e.GetType(), e.Message); } catch (UriFormatException e) { Console.WriteLine("uri should be in correct format"); Console.Write("Exception Thrown: "); Console.Write("{0}", e.GetType(), e.Message); } } } Output: uri should be in correct format Exception Thrown: System.UriFormatException Reference: https://learn.microsoft.com/en-us/dotnet/api/system.uri.makerelativeuri?view=netstandard-2.1 Comment More infoAdvertise with us Next Article Introduction to .NET Framework R rohitprasad3 Follow Improve Article Tags : C# CSharp-method CSharp-Uri-Class Similar Reads IntroductionC# TutorialC# (pronounced "C-sharp") is a modern, versatile, object-oriented programming language developed by Microsoft in 2000 that runs on the .NET Framework. Whether you're creating Windows applications, diving into Unity game development, or working on enterprise solutions, C# is one of the top choices fo 4 min read Introduction to .NET FrameworkThe .NET Framework is a software development framework developed by Microsoft that provides a runtime environment and a set of libraries and tools for building and running applications on Windows operating systems. The .NET framework is primarily used on Windows, while .NET Core (which evolved into 6 min read C# .NET Framework (Basic Architecture and Component Stack)C# (C-Sharp) is a modern, object-oriented programming language developed by Microsoft in 2000. It is a part of the .NET ecosystem and is widely used for building desktop, web, mobile, cloud, and enterprise applications. This is originally tied to the .NET Framework, C# has evolved to be the primary 6 min read C# Hello WorldThe Hello World Program is the most basic program when we dive into a new programming language. 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C# has multiple indexers in a single class. To overload an indexer, declare it with multiple parameters an 3 min read Like