We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. (Last updated on: November 16, 2018).
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback
Platform : WinForms
Category : TextBox

How can I restrict the characters that my textbox can accept

You can handle the textbox’s KeyPress event and if the char passed in is not acceptable, mark the events argument as showing the character has been handled. Below is a derived TextBox that only accepts digits (and control characters such as backspace, ...). Even though the snippet uses a derived textbox, it is not necessary as you can just add the handler to its parent form.

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon