How to check Page.Validate() on client side (JavaScript) in ASP.Net?

Question

Page_ClientValidate() will work. It returns true if the page was valid and it works fine.

If you are using ASP.NET 2.0, pass the validation group name as a parameter.
E.g.

if(Page_ClientValidate("SomeValidationGroup"))
     alert('its valid');

Otherwise if there is no validation group Page_ClientValidate("") will handle it.
E.g.

if(Page_ClientValidate(""))
     alert('its valid');