Validating checkboxlist asp net control using javascript

I want to force a user check the control before submitting the form. I am stack The script is : Hi, Go through below links..

I've tried to use Requiredfieldvalidator and Control To Validate but ASP.

Kinda new to webforms so any insight would be greatly appreciated.

Sry i cannot post any code, but i hope i was clear enough!

validating checkboxlist asp net control using javascript-25

Server Side Validation Validation done at the server level after sending the form data to the server but before entering the data into the database is called server-side validation. The first page source code Look at the preceding source code closely; see the id's of controls that play the important role in Java Script validation by reading the ASP. The design view of the preceding source code will look as in the following: I hope you have created the same form as above for demonstration purposes. Net controls values in Java Script are as: There are three main methods shown in the above image in the red square to read the ASP.Experts when I click a hyper link I would like to either: check all or un check all items in a checkboxlist control.I found some javascript that works, but it checks all checkboxs on the form, I just want the items in the checkboxlist.Net control's values in variables so it cannot be repeated again and again in our function the email Exp variable holds the pattern of the email id in the form of a regular expression.Now add the condition to ensure that all controls have a value, if the values are not entered in the form control then it will show a message.

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