CoreandServices.book - Ocean - Schlumberger

Custom Worksteps
When you throw an exception of the type WorkstepException or a derived type, the
system will catch these exceptions and correctly present the failure to the end user. Any
other exceptions will be treated as internal errors.
Step 4 - Optionally Define Presentation: Icon and Name
The workstep has a name and an icon that are shown in the Workflow editor. They appear
in the line UI for your workstep and the workstep listing in the Processes tab. By default,
Ocean uses the class name and a default icon.
default icon
Fig. 6-37 Default Workstep Presentation
You can optionally control the presentation of your workstep to show a different icon and
name.
You implement IPresentation on your workstep to supply a bitmap for the icon and a string
for the workstep name. This is described further in “IPresentation” in Volume 3, “Petrel
Customization” in Chapter 2, “User Interface Services.”
class MyUpscalingWorkstep :
Workstep, IPresentation
{ ...
public string Text { get { return “UpscaleLog”; } }
public Bitmap Image { get { return PetrelImages.Property; } }
}
public event EventHandler PresentationChanged;
6-308 Ocean Application Development Framework 2008.1
Schlumberger Private