TCustomEntityContext.CreateAttachedEntity

The method is designed for creating a new entity instance and simultaneous attaching it to the data context

Unit

Syntax

Remarks

The method creates a new entity instance of the specified meta-type with the specified primary key. The entity instance created by this method is initially attached to the data context and placed to the object cache (in contrast to the TCustomEntityContext.CreateEntity method), therefore you can already perform modification operations for the instance: TCustomEntityContext.Delete, TCustomEntityContext.Save, TCustomEntityContext.Cancel, without pre-calling TCustomEntityContext.Attach.

Example

var
  PK: TPrimaryKey;
  EmpEntity: TEntity;
begin
  PK := TPrimaryKey.Create(Context['Emp']);
  PK.Values[0].AsInteger := 1;
  EmpEntity := Context.CreateAttachedEntity(PK);
  // ...
end; 

See Also

• TCustomEntityContext.CreateEntity
• TCustomEntityContext.Attach
• TCustomEntityContext.Delete
• TCustomEntityContext.Save
• TCustomEntityContext.Cancel
• TEntity