How to make Back Color transperent ON VB.Net : i've got a weird problem i've tried make Transparent color in vb.net but i cannot using following code:

Me.BackColor = System.Drawing.Color.Transparent

But any other color is working fine
for example: Me.BackColor = System.Drawing.Color.Lime

but when tring set it in properties to transparent i get following error from debugger: http://prntscr.com/f54sbb

any help guys?