Merchant Security Updates: Learn how security upgrades may affect your integration at the 2016-2017 Merchant Security Roadmap Microsite
Payments Standard Updates: Beginning March 29th 2017, PayPal will offer a few enhancements that may require integration changes. Read more here: Payments Standard Upgrade FAQ
kindly comment if this description is unclear to you.
So I tried to make this application using WebClient but after entering the credentials, the application is showing the Object Reference exception the reason is PayPal is asking for Security-Captcha. And the further obstacle by using WebClient technology/method is I want to click a button on PayPal's website but has no ID and Name.
In short, is it possible to send money from one PayPal account to another by entering values dynamically?
It's not possible to setup a webClient to automatically click through the website I'm afraid. Th only way to move money between accounts programmaticly is to use the APIs payouts or Adaptive are the choice for "send Money"
Is there any tutorial or a complete guide, from where I can learn that how to use Adaptive API in C# Desktop Application?
We don't have specific instructions for desktop applications, but we do provide a .net SDK to get you started: