Hi Palli,

After removed all VWG and tried again worked fine, but I found a new wrong behavior :

(1)ComboBox with 3 items;
(2)Delete all selected text and "exit"; comboBox continue with a value;
(3)Try to set a value using comboBox list; nothing happen;
(4)Try to set "null" to comboBox.SelectedItem; the first item is selected; try again and work fine;

The same procedures work fine with a WinForms.

See it in action :  http://screencast.com/t/Y2JlZTk2

WinForms and VWG Demos : http://automato.org/temp/VWGCombo_versus_WinForms_Behavior.zip

Regards,
Alexnaldo Santos