You can assign a group name to a set of validators to ensure that validation occurs
        only for controls in the specified group. This enables you to have multiple separately-validated
        forms on a single page.
    
        RadToolBar provides the ability to specify validation-related properties per button
        item (RadToolBarButton or RadToolBarSplitButton).
        If these not set, validation properties of the RadToolBar control
        itself are taken into account. You can use the ValidationGroup
        property when you want to perform separate validation tasks on the same page.
    
        By default, all validators are in the "" group (the default group) for backward
        compatibility.