Validating checkboxlist asp net control using javascript

It might seem a bit overwhelming, but it's actually quite simple.Like with the Required Field Validator, we use the controltovalidate attribute to specify which control to validate.Recently, when writing code for my blog post on drop downs, “Drop Down List For with Dictionaries in ASP.NET MVC and why Select List wants to kill you”, I stumbled over an interesting problem – when using ASP.If your form is submitted to the server with no prior on-the-client Java Script validation (old school!but it works), then you’ve got yourself the easiest of all fixed.In addition to that, we specify a control to compare.The operator attribute specifies which method to use when comparing.

Whenever the user gives the input, it must always be validated before sending it across to various layers of an application.There’s nothing wrong with MVC as such in here, as it is meant to be CSS framework agnostic, meaning you should be able to use it with any CSS framework.To get a better understanding of the problem, have a look at this HTML that’s generated by MVC on postback.In this case, we use the Less Than operator, because we wish for the first control to have the smallest value.We set the type to integer, because we want to compare integers.I have a some pages that are slightly different, but all have the same "action buttons" that do the same tasks for each page.Instead of duplicating the code, I made a user control that includes buttons that perform actions - but there's one action I can't seem to do. NET was developed in direct response to the problems that developers had with classic ASP. NET: Client-Side Validation: When validation is done on the client browser, then it is known as Client-Side Validation.Since ASP is in such wide use, however, Microsoft ensured that ASP scripts execute without modification on a machine with the . We use Java Script to do the Client-Side Validation. There are the following two types of validation in ASP. So, validation is a good idea to do whenever we are taking input from the user.

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