I have written the following code to get all the elements in the combo and check with my required value, but i think there may be a better way. Whats the better method to check if any item is there in a combobox? couldnt get from the QTP help.
For check_index=0 to Window(window_name).Dialog(dialog_name).WinComboBox(control_name).GetItemsCount-1
If Trim(Window(window_name).Dialog(dialog_name).WinComboBox(control_name).GetItem(check_index))
=Trim(input_value_array(i_count)) Then