Purpose

Fixes AGD-2777

When running a graph from Dynamo Player while the Dynamo UI was open, the value and UI display of dropdown nodes was not updated consistently.

• DropDown.UpdateValueCore uses the SelectedIndex setter instead of its own logic.
• The DropDown.SelectedIndex setter runs RaisePropertyChanged("SelectedString"). (Previously it changed selectedString but did not alert the UI of the change.)

Opportunistic fixes:

• The DropDown.SelectedString setter runs RaisePropertyChanged("SelectedIndex"). (Previously it changed selectedIndex but did not alert the UI of the change.)
• The DropDown.SelectedString setter does nothing if the given value is the same as the current value.

Declarations

Check these if you believe they are true

• The code base is in a better state after this PR
• Is documented according to the standards
• The level of testing this PR includes is appropriate
• User facing strings, if any, are extracted into *.resx files
• All tests pass using the self-service CI.
• Snapshot of UI changes, if any.

Reviewers

@saintentropy