CoreandServices.book - Ocean - Schlumberger

Custom Worksteps
Step 7b – Derive from UI Factory
Derive from the convenience class WorkflowEditorUIFactory to provide your custom
UI to Ocean when needed.
public abstract class WorkflowEditorUIFactory
{
protected WorkflowEditorUIFactory();
}
public Control CreateDialogUI( Workstep w,
object argPackage, WorkflowContext context);
protected abstract Control CreateDialogUICore(Workstep w,
object argPackage, WorkflowContext context);
The WorkflowContext provides a method to call when the argument package has been
changed.
public class WorkflowContext
{
...
public void OnArgumentPackageChanged(object sender,
WorkflowContext.ArgumentPackageChangedEventArgs e);
public class ArgumentPackageChangedEventArgs : EventArgs
{
public ArgumentPackageChangedEventArgs();
}
}
CreateDialogUICore is passed the workstep, the argument package, and the
workflow context. The custom UI will need some of this information to do its job. The
custom UI initializes itself from the values in the argument package when it is created and
sets the values the user has entered back into the argument package when the user is
finished. It needs the workflow context in order to notify others that the argument
6-316 Ocean Application Development Framework 2008.1
Schlumberger Private