AjaxControlToolkit.MaskedEditValidatorCompatibility.BaseValidator.OnPreRender C# (CSharp) Метод

        protected override void OnPreRender(EventArgs e)
        {
            base.OnPreRender(e);

            if(ScriptManager == null || !ScriptManager.SupportsPartialRendering)
                return;

            ValidatorHelper.DoPreRenderRegistration(this, this);
        }