Hint: 1. Each time you recompute the resulting value, delete the previous result. 2. Before doing any computation, parse the strings into a suitable data type. For example, you can use float. Parse (TextBox1.Text) 3. Validation for the for text boxes to be carried out. User should not be allowed to enter characters. Required Functionality The user is prompted to enter two floating point numbers into two TextBoxes fields initialized with the string "insert a value". After entering the numbers the user chooses one of the following operations: • Adding the numbers by pressing the button labeled "+". • Subtraction the second number from the first by pressing the button labeled "-". • The resulting value is written to the field labeled "The results is:” • Next, the user can multiply one of the values (chosen by radio button) by a number between 2-6 chosen from a Dropdown List. The result value is written to a result label. • Next, the user can click the "Add Taxes" button, which results in adding a 16.5% tax to theresulting value.
• The output should be written to a field labeled with an invisible label, which, at this stage, will
become visible. • Do not forget to write your name and ID at the bottom of the application window (centered).