Spread for ASP.NET 12 Product Documentation
DataKey Names (String Collection) Editor
Spread for ASP.NET 12 Product Documentation > Developer's Guide > Working with the Spread Designer > Understanding the Spread Designer Interface > Spread Designer Editors > DataKey Names (String Collection) Editor

You can set the names of key fields for the data source. Select DataKeyNames under the Data section after selecting Sheet in the drop-down box to the right side of the designer.

Spread Designer DataKey Names Editor