Hi Ashes,
Thank you for your interest in Syncfusion Products.
I have tested the issue with the simple sample in which I have added a combobox with autocomplete. I clicked the dropdown and typed in the combobox and selected the item displayed in the dropdown using arrow keys. The SelectedIndex_Changed event is not triggered and the SelectedItem property is not updated. But when selecting item using mouse the SelectedIndex_Changed event is triggered and SelectedItem property gives correct value. Please refer to the sample and videoclip provided below:
Sample:
http://files.syncfusion.com/support/Tools.Windows/7.1.0.21/F79872/main.htmVideoclip:
http://files.syncfusion.com/support/Tools.Windows/7.1.0.21/F79872/VideoReference.zipCould you please let me know if is this a issue you have mentioned or if I have misunderstood your requirement, could you please let me know in detail, so that I could work out in depth and provide you a better solution at the earliest?
Please let me know if any concerns.
Regards,
Fathima