title: C#: Add User defined Properties into the Properties Tab in Windows form
body: <p>I am working in windows application. Is there any possibility to add user defined properties into the <strong>Properties</strong> Tab of the Visual Studio for my application.</p>
  
  <p><a href="https://i.stack.imgur.com/IWsfy.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IWsfy.png" alt="enter image description here"></a></p>
  
  <p>ie: I have a <code>textbox</code> to which I want to add a property to the <strong>Properties</strong> Tab. The value to the property are "<strong>Alphabet only</strong>, <strong>Number only</strong>, <strong>Alphabet and Special character</strong>, <strong>Number and special character</strong>". When I select <strong>Alphabet only</strong> value, the text box has to allow only alphabets. How can we do this function?</p>