title: Change of display page?
body: <p>I bought an application development training in c# with xamarin.forms and I work on visual studio 2022.</p>
  <p>I have made good progress in the training and I display the content on my phone when I debug I use my phone instead of 'an emulator recently created a second file to add an application page which is the menu I followed the same steps but when I debug it always shows me the first page and therefore I cannot see the result of my second step (I want to remember that the file I opened is xaml content.)</p>
  <p>The question is the following : how to display another file on an emulator or phone for example.</p>
  <p>please answer. I really need help</p>