How can I handle ComboBox selected index changing?

Question

I have a ComboBox that have a list of manufacturers. When a user selects a manufacturer, a grid below is populated with data for the chosen manufacturer. That data can be mo

Answer 1

If you wonder how you can receive notification when the selection changes, you can subscribe to the ComboBox.SelectedIndexChanged event.

If you want to offer the user the option to save, only when something has changed and she has forgotten so save her changes, you need to keep track of when these other fields change. This could be accomplished by maintaining a boolean value which is set to true whenever the user edits any fields. When the mentioned event occurs, check this value before deciding whether to offer the option to save.