To access the C1FlexGrid Style Editor, use the C1FlexGrid Tasks menu, the context menu, or the Properties window. For more information on customizing cell appearance with the C1FlexGrid Style Editor, see C1FlexGrid Style Editor.
Click the smart tag ( ) in the upper right corner of C1FlexGrid to open the C1FlexGrid Tasks menu, and select Styles.
Right-click on the form and select Styles from the context menu.
In the Properties window, click the ellipsis button next to the Styles property.