Please enable Javascript to correctly display the contents on Dot Net Tricks!

Restrict user to enter numeric value in textbox using javascript

  Author : Shailendra Chauhan
Updated On : 29 Jan 2013
Total Views : 14,763   
 

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> 

YOU MIGHT LIKE
Free Interview Books
 
COMMENTS (0)
13 FEB
ASP.NET Core Development (online)

07:00 AM-09:00 AM IST( MON, WED, FRI)

Know More
25 JAN
Angular2 and Angular1 Development (online)

09:00 PM-10:30 PM IST(MON-FRI)

Know More
24 JAN
ASP.NET MVC with Angular2 Development (online)

07:00 AM-09:00 AM IST(Tuesday & Thursday)

Know More
20 JAN
NODEJS & MEAN Stack 2 Development (online)

09:00 PM-11:00 PM IST( MON, WED, FRI)

Know More
15 JAN
PPC Marketing (offline)

04:00 PM-05:300 PM

14 JAN
Xamarin Forms : Build Cross-platform Apps (offline)

05:00 PM-06:30 PM IST

10 JAN
ASP.NET MVC with AngularJS Development (online)

09:00 PM-11:00 PM IST on (TUE, THRU,SAT)

3 JAN
ASP.NET MVC with AngularJS Development (online)

07:00 AM-09:00 AM IST

31 DEC
ASP.NET MVC with AngularJS Development (offline)

09:30 AM-11:00 AM

31 DEC
Angular2 and Angular1 Development (offline)

11:00 AM-12:30 AM

26 NOV
ASP.NET MVC with AngularJS Development (offline)

03:00 PM-04:30 PM

5 NOV
ASP.NET MVC with AngularJS Development (offline)

08:00 AM-09:30 AM

4 SEP
MEAN Stack 2 Development (offline)

11:00 AM-12:30 PM.

BROWSE BY CATEGORY
 
RECENT ARTICLES
SUBSCRIBE TO LATEST NEWS
 
LIKE US ON FACEBOOK
 

Professional Speaks

+