Custom textbox validating user input
For even more customization and cross browser consistency, use our completely custom form elements to replace the browser defaults.They’re built on top of semantic and accessible markup, so they’re solid replacements for any default form control.Bootstrap’s form controls expand on our Rebooted form styles with classes.Use these classes to opt into their customized displays for a more consistent rendering across browsers and devices.
So to be safe, use custom Java Script to disable such links.
A Range Validator can be applied to ensure the entered value falls within some specified interval. NET validators with Rad Input controls, simply set the ID of the Rad Input control as the value of the Control To Validate property of the validator.