AjaxControlToolkit.ResizableControlExtender.EnsureValid C# (CSharp) Метод

        public override void EnsureValid()
        {
            base.EnsureValid();
            if(MaximumWidth < MinimumWidth)
                throw new ArgumentException("Maximum width must not be less than minimum width");

            if(MaximumHeight < MinimumHeight)
                throw new ArgumentException("Maximum height must not be less than minimum height");
        }