How to fetch the query string parameters alone from a url in ASP.NET with C#?

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I want to

fetch the  query string parameters alone  from a Url which will be in encrypted format in asp.net with c#. 
My Sample Url is as below:
<a href="http://samplecorporateWPS.aspx?P7t0Iuy8XIhS4z6yJqY3lPniOmkIF3YhrlOQzcBwXJ5vUzTWglVzRoRrqDPClgku5gqUr1wzArs3bB76XSEHctnnqr9+LyIaLzMdKiR1ljrl4Xjhr0duzAGUgya0yX7imZaadmjVq7qsBD5+8+3wYrhKmSO6ET0Q1U+RAaNlyHU="

I want to decrypt the below data :
P7t0Iuy8XIhS4z6yJqY3lPniOmkIF3YhrlOQzcBwXJ5vUzTWglVzRoRrqDPClgku5gqUr1wzArs3bB76XSEHctnnqr9+LyIaLzMdKiR1ljrl4Xjhr0duzAGUgya0yX7imZaadmjVq7qsBD5+8+3wYrhKmSO6ET0Q1U+RAaNlyHU=

What I have tried:

<pre>My Sample Url is as below:
<a href="http://samplecorporateWPS.aspx?P7t0Iuy8XIhS4z6yJqY3lPniOmkIF3YhrlOQzcBwXJ5vUzTWglVzRoRrqDPClgku5gqUr1wzArs3bB76XSEHctnnqr9+LyIaLzMdKiR1ljrl4Xjhr0duzAGUgya0yX7imZaadmjVq7qsBD5+8+3wYrhKmSO6ET0Q1U+RAaNlyHU="

I want to decrypt the below data :
http://samplecorporateWPS.aspx?P7t0Iuy8XIhS4z6yJqY3lPniOmkIF3YhrlOQzcBwXJ5vUzTWglVzRoRrqDPClgku5gqUr1wzArs3bB76XSEHctnnqr9+LyIaLzMdKiR1ljrl4Xjhr0duzAGUgya0yX7imZaadmjVq7qsBD5+8+3wYrhKmSO6ET0Q1U+RAaNlyHU=

I tried by replacing the Url http://samplecorporateWPS.aspx? with empty string
and decrypted

Is there a even more feasible way to do the same?

Posted 5-Jun-19 18:40pm

ranio

Updated 5-Jun-19 22:07pm

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lmoelleb · Answer 1 · 2019-06-05T22:08:00

Solution 1

I would use Uri.Query Property (System) | Microsoft Docs[^]

If you really want to do it yourself, consider using string.IndexOf to find the ? if present, then using string.Substring. This will work if the URL is changed (for example to https). But I can't really see a reason to do this - just use the Uri class.

Posted 5-Jun-19 22:08pm

lmoelleb

Comments

CPallini 6-Jun-19 4:52am

5.