A System.Web.UI.ValidatorCollection that contains the control validators for the specified validation group.
The Page.GetValidators(string) method returns all the validation objects associated with a specific validation group. You can return the default validation group (all validation controls associated with controls without the ValidationGroup property set) by setting the validationGroup parameter to null.
To validate the members of the validation group, you can enumerate over the collection and call the IValidator.Validate method of each validator returned.