By default, the DrawGridLines property is False. Use the DrawGridLines property to specify whether the control draws the grid lines in the chart's area. The GridLineStyle property to specify the style for horizontal or/and vertical gridlines in the level view. Use the GridLineColor property to specify the color for the vertical grid lines between time units. The DrawGridLines property draws the vertical grid lines only if the DrawGridLines property of the Chart object is exVLines, exRowLines or exAllLines. If the DrawGridLines property is exNoLines, exHLines, the DrawGridLines property has no effect. Use the MarkTodayColor property to specify the color to mark the today date. Use the NonworkingDays property to specify the nonworking days. Use the NonworkingDaysPattern property to specify the brush to fill the nonworking days area. Use the DrawTickLines property to specify whether the grid lines between time units in the level are visible or hidden.