Requiredfieldvalidator not validating
This article will explain some basics about form validation and then illustrate how to validate form fields using j Query.There are two types of validation: client side validation and server side validation. This has the effect of turning off the client-side behaviors of the validation controls. Hence, our new Required Field Validator For Check Box Lists Web control will extend the class! NET, you will find this task a whole lot easier than if you don't have it, but VS. Since we are interested that at least one item has been selected, we simply return if the to false. NET validation controls provide functionality to perform validation using client script.
Per the documentation, for any validator control the "standard controls that can be validated are Text Box, List Box, Drop Down List, Radio Button List, System. NET Web pages that use the control (see the following example for the syntax). NET Web page shows a simple example of using this custom control to validate a Check Box List - a task that was impossible using the built-in Required Field Validator. ] Conclusion In this tip we looked at how to create a very simple required field validator validation Web control that could handle Check Box Lists.
NET server control that can be used in place of a Required Field Validator for Check Box List Web controls. NET is that you can simply create a new custom Web control that includes the desired functionality. NET, create a file with a property is not set or is set to a nonexistent server control, the property will return false.
In this tip we'll examine how to build a custom ASP.
In a webpage, I add this User Control to the page and also a Required Field Validator to validate the control at page-level.
Actually, I can put the validation inside the control itself, but to make it flexible and general enough to use elsewhere, I decided to move the validation to the page-level instead.
Validator Validate(val) Takes a client-validator as input.