Can we wrap AccessSelections/ModifyDefinition?

[brinkdinges]

The current method for changing feature definitions can be made more user-friendly. These are the current steps:

1. Get the xFeatureData object from IFeature.GetDefinition
2. Call AccessSelections on the FeatureData object. Pass the part object + null or assembly + component.
3. Call any method or set any property that requires user selection
4. Call IFeature.ModifyDefinition. Pass the part object + null or assembly + component.

The protocol is pretty straightforward, but can we make it more user-friendly? Some ideas:

• Create a big switch for every feature type, cast the FeatureData object to the correct type and call AccessSelections on that.
• Or make that call dynamic after a type check?
• Split modifying part features and assembly features so we have a method for each one
• Wrap it in a try-catch-finally block so we always call ModifyDefinition at the end