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My form has a combobox which reads user input. But i want to allow the user to enter his own choice apart from the ones in dropdown list. I have set the following properties

  1. AutoCompleteSource to collection
  2. AutoCompleteMode to SuggestAppend
  3. AutoCompleteSource to CustomSource

When i run the application i am getting exception object reference not set to an instance of object.

Sir Rufo
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