How to filter a combobox using another combobox in C#?

Question

What I want to do is to filter a combobox with another combobox, I mean, there's going to be a combobox with the following items: "Animals", "Letters", "Numbers" and "Colors".

There's going to be another combobox that if you choose animals (for example) will display the following items: "Farm animals", "Home animals".

Then another combobox will filter the content, I mean, if she chooses "Farm animals" that combobox will only display animals like: "Pig", "Cow", etc. If she chooses "Home animals" it will display only animals like: "Cat", "Dog", etc. And a picture of the choosen animal.

Is this somehow posible?

Answer 1

Create an event listener using the ComboBox.SelectedIndexChanged Event so that when the index of the first combo box changes, the second combo box's values are determined.

http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.selectedindexchanged(v=vs.110).aspx