AutoCreateOption Enum
Lists the values that specify the action which is performed when a session is connected to a data store.
Namespace: DevExpress.Xpo.DB
Assembly: DevExpress.Data.v23.2.dll
NuGet Package: DevExpress.Data
Declaration
Members
| Name | Description |
|---|---|
DatabaseAndSchema
|
A session will try to automatically create the database if it doesn’t exist. It will also create or update the database schema for any persistent classes currently being used. |
SchemaOnly
|
A session will automatically create or update the database schema for the persistent classes currently being used. If the database doesn’t exist, it won’t be created by a session. |
None
|
A session will not automatically create the database or update the database schema. The database schema is still queried and checked to match the currently used persistent class metadata. |
SchemaAlreadyExists
|
A session will never query the database for schema to validate against persistent class metadata. This will suppress the SchemaCorrectionNeededException, but a database error may occur during data operations if the schema is not compatible with run-time persistent classes metadata. |
Remarks
The values listed by this enumeration can be used when instantiating a data access layer. Additionally, you can set the mode for a specific Session, using the Session.AutoCreateOption property.