This class is used to store the connection parameters which are required to open an ArcSDE geodatabase. An ArcSDEConnectionProperties object is used when:

• Creating a Geodatabase object to open a connection to an ArcSDE geodatabase.
• Creating a DataSourceProperties object to define the connection to an ArcSDE feature class or raster which is used to connect a FeatureLayer or RasterLayer to the data source.
• Opening an ArcSDE feature class, table or raster directly using the Table.OpenArcSDETable or Raster.OpenArcSDERaster methods.

Direct Connect is supported if the Data Access Expansion Pack has been installed. This can be checked using the CanUseDirectConnect property.

For more information on using this class and for code examples, see: How to connect to a geodatabase.