I could really use some help with the question below!

Must use C# and please make it simple as I am a beginner! Also it must be a form application. Thanks a million!!

(Celsius to Fahrenheit and vice versa) Implement the following Celsius to Fahrenheit conversion (and vice versa) Use WinForm application. Use two buttons (C->F and F->C), input Textbox and output label. You must use integer methods: a) Method Celsius returns the Celsius equivalent of a Fahrenheit temperature, using thecalculation c = 5.0 / 9.0 * ( f - 32 ); b) Method Fahrenheit returns the Fahrenheit equivalent of a Celsius temperature, usingthe calculation f = 9.0 / 5.0 * c + 32; c) Use the methods from parts (a) and (b) to write an app that enables the user either to enter a Fahrenheit temperature and display the Celsius equivalent or to enter a Celsius temperature and display the Fahrenheit equivalent. d) you MUST validate user for presence of numbers and their range (-100 +800). e) Add MessageBox for error handling. f) Use Mnemonics