Code for buttons

Question

Hello everyone,
I'm a student and new to C#. I need to create a form with five buttons; red, green, blue, yellow, and orange. When a button is clicked it should change the color of a panel to the respective color of the button. Additonally, I need a progress bar (with say increments of 10) whith upper and lower limits; ie 0-100 with two panels which diplays when the upper and lower limits are reached.
Thus far I have created the buttons and panels.
Any help would be greatly appreciated.
Elias