How to write Client Validation code on Clientside. like validating Textbox to enter only age using javascript

Arvind Yadav

14y3.9k.NET

I want to write code in javascript to valid my textbox at client side in my asp.net application.
I write code javascipt code taking refference from this link
http://www.c-sharpcorner.com/uploadfile/purankaushal/103222006013805am/1.aspx

but when i write code as it is my program it showing error in

Error 4 ; expected c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\master_practice\faf8de5c\f8430d80\App_Web_qiup44vn.0.cs 838 121
Error 9 ; expected c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\master_practice\faf8de5c\f8430d80\App_Web_qiup44vn.0.cs 846 18

like 15 error in App_Web_qiup44vn.0.cs file.

2 Replies

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Dehnert Stephen14y ago
Hi,
Give a semi colon at the end of the javascript function like
btn.attributes.add("onclick","return javascript:return Validate();");
Try this and before debugging delete all your files from Temoporary Asp.net folder

Thanks
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Santhosh Subramaniam14y ago
hi Arvind

reference u taken is may correct,
but no need to add
btnSubmit.Attributes.Add("onclick", "return validate()")

OnclientClick can call validate() function default when click a button

EG:

this eg accept only numeric values and i call this function in textbox OnKeyDown event