In my previous tutorials, I’d explained how to validate checkboxlist using jquery, validate radiobuttonlist using javascript, validate dropdownlist using javascript and other more cracking tutorials on CheckBoxList, Asp.net here. Validation is one of the greatest security features to prevent your website against spam. We can do validation in two ways. One is from client-side another is from server-side validation. Now here in this tutorial, I’ll explain how to validate checkboxlist from client-side using JavaScript in asp.net.