When ASPxGridView is bound to a data source, you need to create columns and bind them to data fields. There are two ways to add columns and bind them to fields:
Automatically create columns for all data fields (default behavior).
The ASPxGridView control automatically generates columns for all fields in the data source. The order of columns is the same as the order of fields in the data source. The ASPxGridView's ASPxGridView.Columns collection is populated at runtime. This collection is empty at design time.
This behavior is controlled by the ASPxGridView.AutoGenerateColumns property. This can be useful when the structure of the underlying data source is unknown (e.g. switching between data tables).
Create columns and bind them to data fields manually.