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
Posted On : 11 Jun 2012
Total Views : 15,832   
Updated On : 29 Jan 2013
 

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> 


Free Interview Books
 
COMMENTS (0)
6 JUN
Hadoop Development cum Administration (Online)

7:00 AM-9:00AM IST

Know More
30 MAY
ASP.NET MVC with Angular4 Development (Online)

09:00 PM-11:00 PM IST(+5.30 GMT)

Know More
28 MAY
ASP.NET Core with Angular4 Development (Classroom)

10:30 AM-11:30 AM Weekend

Know More
28 MAY
ASP.NET Core with Angular4 Development (Classroom)

10:30 AM-11:30 AM Weekend

27 MAY
ASP.NET MVC with Angular4 Development (Classroom)

4:00 PM-5:30 PM Weekend

20 MAY
Angular2 and Angular4 Development (Online)

08:00 AM-10:00 AM IST(+5.30 GMT) Weekend

20 MAY
NodeJS with Angular4 Development (Classroom)

5:00 PM-6:30 PM Weekend

8 MAY
ASP.NET MVC with Angular4 Development (Online)

07:00 AM-09:00 AM IST(+5:30 GMT) M/W/F

2 MAY
ASP.NET Core Development (Online)

07:00 AM - 09:00 AM IST( TUS, THR)

29 APR
ASP.NET MVC with Angular2 Development (Classroom)

9:30 AM-11:00 AM

22 APR
MEAN Stack 2 Development (Classroom)

11:00 AM-12:30 PM Weekend

10 APR
Master Class ASP.NET MVC 5 with Angular2 Plus Angular4 Development (Online)

09:00 PM - 11:00 PM IST (M/W/F)

25 MAR
Xamarin Forms : Build Cross-platform Apps (Classroom)

8:00 AM-9:30AM Weekend

BROWSE BY CATEGORY
 
 
LIKE US ON FACEBOOK
 
+