C# / .NET - get URL parameters from string

In this article, we would like to show you how to get URL parameters from string in C#.

Quick solution:

Uri myUri = new Uri("https://dirask.com/posts?hashtags=webdev&hashtags=javascript");

string hashtags = HttpUtility.ParseQueryString(myUri.Query).Get("hashtags");

Console.WriteLine(hashtags); // Output: webdev,javascript

Practical example

In this example, we get URL parameters from string using Get() method with specified parameter name.

using System;
using System.Web;

public static class Program
{
    public static void Main(string[] args)
    {
        Uri myUri = new Uri("https://dirask.com/posts?hashtags=webdev&hashtags=javascript");

        string hashtags = HttpUtility.ParseQueryString(myUri.Query).Get("hashtags");

        Console.WriteLine(hashtags);
    }
}

Output:

webdev,javascript

References

1. HttpUtility Class (System.Web) | Microsoft Docs
2. HttpUtility.ParseQueryString Method (System.Web) | Microsoft Docs
3. Uri.Query Property (System) | Microsoft Docs
4. NameValueCollection.Get Method (System.Collections.Specialized) | Microsoft Docs