Hi there!

Does anyone had experience with flickering or blinking ComboBoxes when updating them?

I like to have some ComboBoxes with the option SuggestAppend to give the user the possibility to select from earlier used data.

When selecting a SW file from a DataGridView some ComboBoxes are cleaned and filled from a text file, after that the program must be told to use the new ComboBox items with 'ComboBox.AutoCompleteSource = AutoCompleteSource.ListItems'.

Together with this command the ComboBox will flicker which look really unprofessional for me.

I've tried:

DoubleBuffered = True, as well in code as in options for the form.

ComboBox.BeginUpdate() and ComboBox.EndUpdate()

Both with no succes.

It's a widely bespoken subject at the internet but I did not find a solution for it.

Btw, it happens both in the Addin and stand alone version from the program, no difference.

Any ideas?

Greetings!