To calculate a room's floor area in a WPF app, create an interface with two textboxes for length and width, and add a Calculate button. On clicking, compute the area as the product of the inputs and display it in a message box.
To create a WPF application that calculates the area of a room's floor, you can start by adding two TextBox controls to the UI for the user to enter the room's length and width. Then, add a Calculate button. When the user clicks this button, you will handle the click event to read the input values from the TextBox controls, perform the calculation for the area, which is the product of the length and width, and display the result in a MessageBox.
For example, suppose the user enters 4m for the length and 3m for the width. The area calculation would be 4m * 3m = 12m2. This result should then be shown to the user. Make sure to handle potential errors such as non-numeric input and provide friendly error messages.
So, your WPF app will provide a simple interface for users to calculate the area of their rooms by multiplying the entered length and width and displaying the final answer in a straightforward manner.