Warning: A non-numeric value encountered in /home/fixbyp5/public_html/wp-content/themes/Divi/functions.php on line 5752

This post is a portion of my series on Windows Programming using C# (C Sharp). You can see all of the posts by going to http://fixbyproximity.com and clicking the “Windows Programming with C#” button at the top of the site.



Learn all about the textbox control and how to use it inside windowed applications.


  • Introduction
  • What is a textbox
  • Properties
  • Passwords
  • Multilines
  • Masking
  • Rich textbox
  • validation