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View this topic on docs.devexpress.com (Learn more)

Custom Draw

The SpreadsheetControl allows you to custom draw worksheet cells via the SpreadsheetControl.CustomDrawCell and SpreadsheetControl.CustomDrawCellBackground events. Use the CustomDrawObjectEventsArgs.Graphics property to return an object providing a basic means for painting. Use the methods and properties of this object to paint text, graphic primitives or images. Custom drawing allows you to customize the appearance of a document. Note, however, that custom draw modifications are not saved in the workbook file. You can use the custom draw functionality to display additional information to end-users, or highlight cell content.

The image below demonstrates how the custom draw feature can be used to display a callout above a cell containing an incorrect formula result.

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