'宣言 Public Property BackgroundGradient As BackgroundGradient
public BackgroundGradient BackgroundGradient {get; set;}
'宣言 Public Property BackgroundGradient As BackgroundGradient
public BackgroundGradient BackgroundGradient {get; set;}
When the BackgroundGradient is set to a value other than none, the gradient is used instead of the image specified by the BackgroundImage property.
If you want to use a gradient different from the built-in ones, create an image and assign it to the BackgroundImage property.