How can we create a select all button for two dependent combobox and put them into a listbox ? Like combobox1 : Soft drink, alcohol and Combobox2 : Pepsi, Coca Cola, Fanta, Oasis, Ice Tea, Long Island, Moscow Mule, Margarita (you can see those choises when you select your item from Combobox1) and I want to create two columns on the list box like Soft Drink Pepsi first row, Soft Drink fanta second row etc.