The following examples show how to add content to a Button using the Content property that button inherits.
void OnClick5(object sender, RoutedEventArgs e)
{
btn6.FontSize = 16;
btn6.Content = "This is my favorite photo.";
btn6.Background = Brushes.Red;
}
Private Sub OnClick5(ByVal sender As Object, ByVal e As RoutedEventArgs)
btn6.FontSize = 16
btn6.Content = "This is my favorite photo."
btn6.Background = Brushes.Red
End Sub