MetroFramework.Controls.MetroComboBox.GetPreferredSize C# (CSharp) Method

        public override Size GetPreferredSize(Size proposedSize)
        {
            Size preferredSize;
            base.GetPreferredSize(proposedSize);

            using (var g = CreateGraphics())
            {
                string measureText = Text.Length > 0 ? Text : "MeasureText";
                proposedSize = new Size(int.MaxValue, int.MaxValue);
                preferredSize = TextRenderer.MeasureText(g, measureText, MetroFonts.ComboBox(metroComboBoxSize, metroComboBoxWeight), proposedSize, TextFormatFlags.Left | TextFormatFlags.LeftAndRightPadding | TextFormatFlags.VerticalCenter);
                preferredSize.Height += 4;
            }

            return preferredSize;
        }