vb.net - VB How to play audio file -

i trying play sound once button clicked code found everywhere on internet:

private sub but_play_sound_click(sender object, e routedeventargs) handles but_play_sound.click     my.computer.audio.play(my.resources.filename1, audioplaymode.background) end sub 'filename1 being audio file 

but visual studio comes these 3 errors , stumped.

severity code description project file line suppression state error bc30456 'computer' not member of 'soundbank.my'. soundbank c:\users\nick_\onedrive\documents\visual studio 2017\projects\soundbank\soundbank\mainpage.xaml.vb 10 active

severity code description project file line suppression state error bc30456 'resources' not member of 'soundbank.my'. soundbank c:\users\nick_\onedrive\documents\visual studio 2017\projects\soundbank\soundbank\mainpage.xaml.vb 10 active

severity code description project file line suppression state error bc30451 'audioplaymode' not declared. may inaccessible due protection level. soundbank c:\users\nick_\onedrive\documents\visual studio 2017\projects\soundbank\soundbank\mainpage.xaml.vb 10 active

i should add store audio files in folder inside assets folder.

in vb projects, my refers special namespace contains objects provide shortcuts common tasks, example my.computer: https://msdn.microsoft.com/en-us/library/11bxex12.aspx

it not confused me, my, mybase , myclass described here: https://msdn.microsoft.com/en-us/library/20fy88e0.aspx

the compiler seems saying standalone identifier my referring soundbank.my - assume member in class or project (as soundbank not type-name in clr or base class library).

so use ctrl+, find out my being redefined , change my no-longer refers in project.