25
AprRestrict user to enter numeric value in textbox using javascript
01 Feb 2024
Intermediate
7.27K Views
1 min read
Learn via Video Course & by Doing Hands-on Labs
JavaScript For Beginners Free Course
Due to some reasons (like don’t allow to enter chars in Price TextBox), we restrict users to enter chars in TextBox. We can implement this functionality by using below method.
<script type="text/javascript"> function checkNumeric(event) { var kCode = event.keyCode || event.charCode; // for cross browser check //FF and Safari use e.charCode, while IE use e.keyCode that returns the ASCII value if ((kCode > 57 || kCode < 48) && (kCode != 46 && kCode != 45)) { //code for IE if (window.ActiveXObject) { event.keyCode = 0 return false; } else { event.charCode= 0 } } } </script> <asp:TextBox ID="TextBox1" runat="server" onkeypress="return checkNumeric(event); ></asp:TextBox>
Read More: 50+ Javascript Interview Questions and Answers
Read More: Javascript Developer Salary in India
Take our free javascript skill challenge to evaluate your skill
In less than 5 minutes, with our skill challenge, you can identify your knowledge gaps and strengths in a given skill.