AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.SetTitle("Title of the Dialog Box"); builder.SetMessage("Message of the Dialog Box"); builder.SetPositiveButton("OK", (senderAlert, args) => { Toast.MakeText(this, "Clicked OK Button", ToastLength.Short).Show(); }); builder.SetNegativeButton("Cancel", (senderAlert, args) => { Toast.MakeText(this, "Clicked Cancel Button", ToastLength.Short).Show(); }); AlertDialog alertDialog = builder.Create(); alertDialog.Show();In this example, we create an alert dialog that displays a message and two buttons, "OK" and "Cancel". The builder is used to set the title, message, and button options, and then the `Show` method is called on the created `AlertDialog` object. Package Library: `Mono.Android.dll`